./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ --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 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- 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-dbf71c6-m [2022-10-17 10:26:52,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:26:52,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:26:52,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:26:52,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:26:52,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:26:52,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:26:52,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:26:52,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:26:52,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:26:52,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:26:52,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:26:52,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:26:52,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:26:52,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:26:52,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:26:52,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:26:52,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:26:52,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:26:52,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:26:52,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:26:52,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:26:52,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:26:52,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:26:52,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:26:52,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:26:52,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:26:52,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:26:52,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:26:52,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:26:52,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:26:52,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:26:52,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:26:52,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:26:52,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:26:52,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:26:52,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:26:52,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:26:52,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:26:52,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:26:52,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:26:52,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:26:52,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:26:52,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:26:52,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:26:52,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:26:52,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:26:52,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:26:52,626 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:26:52,626 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:26:52,627 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:26:52,627 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:26:52,628 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:26:52,628 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:26:52,629 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:26:52,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:26:52,629 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:26:52,629 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:26:52,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:26:52,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:26:52,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:26:52,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:26:52,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:26:52,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:26:52,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:26:52,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:26:52,635 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:26:52,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:26:52,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:26:52,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:26:52,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:26:52,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:26:52,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:26:52,638 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:26:52,638 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_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2022-10-17 10:26:52,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:26:52,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:26:52,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:26:52,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:26:52,966 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:26:52,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2022-10-17 10:26:53,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/data/7e4352fb4/cd98d504712c48088e0db47b46b386a0/FLAGe0b9406d9 [2022-10-17 10:26:53,463 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:26:53,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/sv-benchmarks/c/recursive/McCarthy91-2.c [2022-10-17 10:26:53,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/data/7e4352fb4/cd98d504712c48088e0db47b46b386a0/FLAGe0b9406d9 [2022-10-17 10:26:53,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/data/7e4352fb4/cd98d504712c48088e0db47b46b386a0 [2022-10-17 10:26:53,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:26:53,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:26:53,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:53,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:26:53,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:26:53,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:53" (1/1) ... [2022-10-17 10:26:53,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7372ffe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:53, skipping insertion in model container [2022-10-17 10:26:53,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:53" (1/1) ... [2022-10-17 10:26:53,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:26:53,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:26:54,068 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_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-10-17 10:26:54,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:54,078 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:26:54,092 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_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2022-10-17 10:26:54,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:54,105 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:26:54,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54 WrapperNode [2022-10-17 10:26:54,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:54,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:54,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:26:54,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:26:54,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,137 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 10:26:54,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:54,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:26:54,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:26:54,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:26:54,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,154 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:26:54,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:26:54,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:26:54,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:26:54,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (1/1) ... [2022-10-17 10:26:54,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:54,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:54,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:54,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:26:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:26:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:26:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:26:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:26:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-10-17 10:26:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-10-17 10:26:54,298 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:26:54,300 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:26:54,411 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:26:54,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:26:54,418 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:26:54,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:54 BoogieIcfgContainer [2022-10-17 10:26:54,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:26:54,421 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:26:54,421 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:26:54,426 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:26:54,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:54,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:26:53" (1/3) ... [2022-10-17 10:26:54,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7baa6a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:26:54, skipping insertion in model container [2022-10-17 10:26:54,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:54,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:54" (2/3) ... [2022-10-17 10:26:54,429 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7baa6a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:26:54, skipping insertion in model container [2022-10-17 10:26:54,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:54,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:54" (3/3) ... [2022-10-17 10:26:54,431 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-2.c [2022-10-17 10:26:54,487 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:26:54,487 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:26:54,487 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:26:54,487 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:26:54,487 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:26:54,488 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:26:54,488 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:26:54,488 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:26:54,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 10:26:54,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:26:54,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:54,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:54,522 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:26:54,522 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:54,522 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:26:54,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 10:26:54,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:26:54,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:54,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:54,526 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:26:54,526 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:54,534 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;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 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~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 14#L28true call main_#t~ret7#1 := f91(main_~x~0#1);< 6#f91ENTRYtrue [2022-10-17 10:26:54,534 INFO L750 eck$LassoCheckResult]: Loop: 6#f91ENTRYtrue ~x := #in~x; 10#L18true assume !(~x > 100); 11#L21true call #t~ret4 := f91(11 + ~x);< 6#f91ENTRYtrue [2022-10-17 10:26:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash 29877, now seen corresponding path program 1 times [2022-10-17 10:26:54,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:54,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876861873] [2022-10-17 10:26:54,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:54,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:54,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:54,663 INFO L85 PathProgramCache]: Analyzing trace with hash 44821, now seen corresponding path program 1 times [2022-10-17 10:26:54,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:54,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412238272] [2022-10-17 10:26:54,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:54,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:54,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:54,682 INFO L85 PathProgramCache]: Analyzing trace with hash 890080737, now seen corresponding path program 1 times [2022-10-17 10:26:54,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:54,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594654309] [2022-10-17 10:26:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:54,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:54,793 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:26:54,793 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:26:54,794 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:26:54,794 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:26:54,794 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:26:54,794 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:54,794 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:26:54,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:26:54,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2022-10-17 10:26:54,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:26:54,795 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:26:54,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:54,820 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:54,830 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:54,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:54,860 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:54,941 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:26:54,943 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:26:54,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:54,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:54,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:54,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:26:54,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:54,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:26:54,993 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:26:54,994 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:26:55,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:55,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:55,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:55,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:55,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:26:55,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:55,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:26:55,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:55,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:55,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:55,107 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:55,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:26:55,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:55,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:26:56,175 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:26:56,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-10-17 10:26:56,178 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:26:56,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:26:56,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:26:56,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:26:56,179 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:26:56,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:56,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:26:56,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:26:56,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2022-10-17 10:26:56,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:26:56,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:26:56,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:56,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:56,200 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:56,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:56,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:56,266 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:26:56,271 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:26:56,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:56,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:56,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:56,279 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 [2022-10-17 10:26:56,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:26:56,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:56,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:56,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:56,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:56,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:56,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:56,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:56,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:56,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-10-17 10:26:56,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:56,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:56,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:56,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:26:56,344 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 [2022-10-17 10:26:56,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:56,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:56,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:56,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:56,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:56,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:56,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:56,368 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:26:56,372 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:26:56,373 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:26:56,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:56,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:56,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:56,378 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:26:56,378 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:26:56,378 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:26:56,379 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2022-10-17 10:26:56,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:26:56,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:56,424 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:26:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:56,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:26:56,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:56,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:26:56,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:56,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:56,628 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-10-17 10:26:56,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:26:56,740 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 42 transitions. Complement of second has 12 states. [2022-10-17 10:26:56,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:26:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:26:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-10-17 10:26:56,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2022-10-17 10:26:56,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:56,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2022-10-17 10:26:56,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:56,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2022-10-17 10:26:56,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:56,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2022-10-17 10:26:56,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:26:56,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 19 states and 25 transitions. [2022-10-17 10:26:56,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-10-17 10:26:56,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-10-17 10:26:56,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2022-10-17 10:26:56,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:56,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-10-17 10:26:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2022-10-17 10:26:56,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-10-17 10:26:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-17 10:26:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-10-17 10:26:56,807 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-10-17 10:26:56,807 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-10-17 10:26:56,807 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:26:56,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2022-10-17 10:26:56,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-10-17 10:26:56,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:56,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:56,809 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:26:56,809 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-10-17 10:26:56,810 INFO L748 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(15, 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~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 108#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 110#f91ENTRY ~x := #in~x; 113#L18 assume !(~x > 100); 105#L21 call #t~ret4 := f91(11 + ~x);< 114#f91ENTRY ~x := #in~x; 115#L18 assume ~x > 100;#res := ~x - 10; 116#f91FINAL assume true; 104#f91EXIT >#27#return; 106#L21-1 [2022-10-17 10:26:56,810 INFO L750 eck$LassoCheckResult]: Loop: 106#L21-1 call #t~ret5 := f91(#t~ret4);< 109#f91ENTRY ~x := #in~x; 118#L18 assume !(~x > 100); 107#L21 call #t~ret4 := f91(11 + ~x);< 109#f91ENTRY ~x := #in~x; 118#L18 assume ~x > 100;#res := ~x - 10; 112#f91FINAL assume true; 117#f91EXIT >#27#return; 106#L21-1 [2022-10-17 10:26:56,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:56,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1243034264, now seen corresponding path program 1 times [2022-10-17 10:26:56,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:56,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785673005] [2022-10-17 10:26:56,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:56,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:56,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:56,848 INFO L85 PathProgramCache]: Analyzing trace with hash 742678306, now seen corresponding path program 1 times [2022-10-17 10:26:56,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:56,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167689957] [2022-10-17 10:26:56,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:56,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:56,865 INFO L85 PathProgramCache]: Analyzing trace with hash -291973751, now seen corresponding path program 1 times [2022-10-17 10:26:56,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:56,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916203233] [2022-10-17 10:26:56,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:56,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:57,065 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:26:57,065 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:26:57,065 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:26:57,066 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:26:57,069 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:26:57,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:57,070 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:26:57,070 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:26:57,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2022-10-17 10:26:57,070 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:26:57,070 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:26:57,071 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:57,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:57,084 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:57,130 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:26:57,130 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:26:57,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:57,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:57,134 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:57,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:26:57,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:57,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:26:57,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:26:57,167 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:26:57,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:57,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:57,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:57,191 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:57,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:26:57,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:26:57,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:57,202 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:26:57,202 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:26:57,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:57,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:57,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:57,225 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:57,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:26:57,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:57,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:26:57,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:57,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:57,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:57,274 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:57,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48bfdb65-ddbf-4ead-a78c-aa73e9db422f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:26:57,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:26:57,275 INFO L160 nArgumentSynthesizer]: Using integer mode.