./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 53eb964f347d54908ecbd10f35e9b63fbb661e4a7ab55b977edead5834613d23 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:13:23,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:13:23,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:13:23,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:13:23,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:13:23,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:13:23,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:13:23,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:13:23,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:13:23,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:13:23,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:13:23,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:13:23,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:13:23,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:13:23,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:13:23,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:13:23,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:13:23,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:13:23,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:13:23,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:13:23,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:13:23,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:13:23,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:13:23,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:13:23,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:13:23,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:13:23,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:13:23,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:13:23,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:13:23,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:13:23,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:13:23,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:13:23,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:13:23,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:13:23,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:13:23,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:13:23,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:13:23,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:13:23,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:13:23,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:13:23,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:13:23,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:13:23,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:13:23,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:13:23,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:13:23,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:13:23,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:13:23,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:13:23,317 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:13:23,317 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:13:23,317 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:13:23,317 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:13:23,318 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:13:23,318 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:13:23,318 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:13:23,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:13:23,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:13:23,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:13:23,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:13:23,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:13:23,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:13:23,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:13:23,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:13:23,320 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:13:23,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:13:23,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:13:23,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:13:23,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:13:23,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:13:23,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:13:23,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:13:23,322 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:13:23,323 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_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53eb964f347d54908ecbd10f35e9b63fbb661e4a7ab55b977edead5834613d23 [2021-11-20 06:13:23,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:13:23,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:13:23,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:13:23,616 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:13:23,617 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:13:23,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i [2021-11-20 06:13:23,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/data/3408a52f4/9ecadd32427b4f2082aaa6d9adb68234/FLAG4c23e1834 [2021-11-20 06:13:24,245 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:13:24,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i [2021-11-20 06:13:24,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/data/3408a52f4/9ecadd32427b4f2082aaa6d9adb68234/FLAG4c23e1834 [2021-11-20 06:13:24,521 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/data/3408a52f4/9ecadd32427b4f2082aaa6d9adb68234 [2021-11-20 06:13:24,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:13:24,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:13:24,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:13:24,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:13:24,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:13:24,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:13:24" (1/1) ... [2021-11-20 06:13:24,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a8656f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:24, skipping insertion in model container [2021-11-20 06:13:24,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:13:24" (1/1) ... [2021-11-20 06:13:24,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:13:24,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:13:24,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:13:24,948 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:13:25,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:13:25,061 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:13:25,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25 WrapperNode [2021-11-20 06:13:25,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:13:25,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:13:25,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:13:25,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:13:25,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,109 INFO L137 Inliner]: procedures = 111, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2021-11-20 06:13:25,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:13:25,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:13:25,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:13:25,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:13:25,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:13:25,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:13:25,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:13:25,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:13:25,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (1/1) ... [2021-11-20 06:13:25,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:25,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:25,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:25,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:13:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:13:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:13:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:13:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:13:25,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:13:25,383 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:13:25,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:13:25,566 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:13:25,572 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:13:25,573 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:13:25,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:25 BoogieIcfgContainer [2021-11-20 06:13:25,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:13:25,576 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:13:25,576 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:13:25,589 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:13:25,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:13:25,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:13:24" (1/3) ... [2021-11-20 06:13:25,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2512f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:13:25, skipping insertion in model container [2021-11-20 06:13:25,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:13:25,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:25" (2/3) ... [2021-11-20 06:13:25,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2512f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:13:25, skipping insertion in model container [2021-11-20 06:13:25,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:13:25,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:25" (3/3) ... [2021-11-20 06:13:25,596 INFO L388 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemrchr-alloca-1.i [2021-11-20 06:13:25,680 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:13:25,681 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:13:25,681 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:13:25,681 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:13:25,681 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:13:25,682 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:13:25,682 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:13:25,682 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:13:25,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:13:25,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 06:13:25,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:13:25,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:13:25,740 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 06:13:25,740 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 06:13:25,740 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:13:25,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:13:25,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-20 06:13:25,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:13:25,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:13:25,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 06:13:25,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 06:13:25,765 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;~MAX~0 := 100000; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~length~0#1, main_~n~0#1, main_~c~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset;main_~length~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~c~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 4#L565true assume !(main_~length~0#1 < 1); 11#L565-2true assume !(main_~n~0#1 < 1 || main_~n~0#1 > ~MAX~0); 14#L568-1true call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~n~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;assume { :begin_inline_cmemrchr } true;cmemrchr_#in~s#1.base, cmemrchr_#in~s#1.offset, cmemrchr_#in~c#1, cmemrchr_#in~n#1 := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~c~0#1, main_~n~0#1;havoc cmemrchr_#res#1.base, cmemrchr_#res#1.offset;havoc cmemrchr_#t~pre3#1.base, cmemrchr_#t~pre3#1.offset, cmemrchr_#t~mem4#1, cmemrchr_#t~pre2#1, cmemrchr_~s#1.base, cmemrchr_~s#1.offset, cmemrchr_~c#1, cmemrchr_~n#1, cmemrchr_~cp~0#1.base, cmemrchr_~cp~0#1.offset;cmemrchr_~s#1.base, cmemrchr_~s#1.offset := cmemrchr_#in~s#1.base, cmemrchr_#in~s#1.offset;cmemrchr_~c#1 := cmemrchr_#in~c#1;cmemrchr_~n#1 := cmemrchr_#in~n#1;havoc cmemrchr_~cp~0#1.base, cmemrchr_~cp~0#1.offset; 13#L551true assume 0 != cmemrchr_~n#1 % 18446744073709551616;cmemrchr_~cp~0#1.base, cmemrchr_~cp~0#1.offset := cmemrchr_~s#1.base, cmemrchr_~s#1.offset + (if cmemrchr_~n#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then cmemrchr_~n#1 % 18446744073709551616 % 18446744073709551616 else cmemrchr_~n#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616); 15#L553-4true [2021-11-20 06:13:25,767 INFO L793 eck$LassoCheckResult]: Loop: 15#L553-4true cmemrchr_#t~pre3#1.base, cmemrchr_#t~pre3#1.offset := cmemrchr_~cp~0#1.base, cmemrchr_~cp~0#1.offset - 1;cmemrchr_~cp~0#1.base, cmemrchr_~cp~0#1.offset := cmemrchr_~cp~0#1.base, cmemrchr_~cp~0#1.offset - 1;call cmemrchr_#t~mem4#1 := read~int(cmemrchr_#t~pre3#1.base, cmemrchr_#t~pre3#1.offset, 1); 16#L554true assume !(cmemrchr_#t~mem4#1 % 256 == cmemrchr_~c#1 % 256);havoc cmemrchr_#t~pre3#1.base, cmemrchr_#t~pre3#1.offset;havoc cmemrchr_#t~mem4#1; 10#L553-1true cmemrchr_#t~pre2#1 := cmemrchr_~n#1 - 1;cmemrchr_~n#1 := cmemrchr_~n#1 - 1; 8#L553-2true assume !!(0 != cmemrchr_#t~pre2#1 % 18446744073709551616);havoc cmemrchr_#t~pre2#1; 15#L553-4true [2021-11-20 06:13:25,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:25,787 INFO L85 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2021-11-20 06:13:25,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:25,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527214585] [2021-11-20 06:13:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:25,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:25,936 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:13:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:25,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:13:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2021-11-20 06:13:25,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:25,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199356406] [2021-11-20 06:13:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:25,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:26,001 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:13:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:26,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:13:26,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2021-11-20 06:13:26,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:26,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048845310] [2021-11-20 06:13:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:26,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:26,080 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:13:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:26,132 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:13:26,820 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:13:26,820 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:13:26,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:13:26,821 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:13:26,821 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:13:26,821 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:26,821 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:13:26,821 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:13:26,822 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemrchr-alloca-1.i_Iteration1_Lasso [2021-11-20 06:13:26,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:13:26,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:13:26,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:26,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:26,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:26,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:26,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:26,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:26,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:27,766 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:13:27,770 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:13:27,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:27,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:27,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:27,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:13:27,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:27,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:13:27,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:27,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:13:27,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:27,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:13:27,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:13:27,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:13:27,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:13:27,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:27,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:27,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:27,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:27,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:13:27,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:27,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:13:27,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:27,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:13:27,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:27,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:13:27,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:13:27,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:13:27,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:13:27,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:27,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:27,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:27,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:27,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:13:27,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:13:27,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:27,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:13:27,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:27,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:13:27,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:27,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:13:27,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:13:27,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:13:27,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:27,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:27,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:27,982 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:27,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:13:28,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:28,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:13:28,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:28,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:13:28,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:28,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:13:28,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:13:28,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:13:28,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:13:28,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:28,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:28,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:28,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:28,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:13:28,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:28,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:28,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:13:28,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:28,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:13:28,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:13:28,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:13:28,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:13:28,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:28,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:28,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:28,143 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:28,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:13:28,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:28,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:13:28,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:28,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:13:28,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:28,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:13:28,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:13:28,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:13:28,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:13:28,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:28,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:28,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:28,222 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:28,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 06:13:28,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:13:28,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:28,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:28,240 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 06:13:28,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:28,261 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-11-20 06:13:28,262 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-11-20 06:13:28,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:13:28,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:28,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:28,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:28,332 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:28,344 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 [2021-11-20 06:13:28,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:13:28,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:13:28,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:13:28,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:13:28,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 06:13:28,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:13:28,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:13:28,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:13:28,440 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-11-20 06:13:28,440 INFO L444 ModelExtractionUtils]: 30 out of 37 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-11-20 06:13:28,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:28,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:28,464 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:28,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 06:13:28,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:13:28,540 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 06:13:28,541 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:13:28,541 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemrchr_~cp~0#1.offset) = 1*ULTIMATE.start_cmemrchr_~cp~0#1.offset Supporting invariants [] [2021-11-20 06:13:28,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:28,639 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-20 06:13:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:28,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:13:28,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:13:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:28,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:13:28,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:13:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:13:28,801 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 06:13:28,803 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:13:28,850 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 35 states and 40 transitions. Complement of second has 5 states. [2021-11-20 06:13:28,852 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 [2021-11-20 06:13:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:13:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2021-11-20 06:13:28,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-20 06:13:28,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:13:28,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 4 letters. [2021-11-20 06:13:28,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:13:28,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 8 letters. [2021-11-20 06:13:28,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:13:28,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2021-11-20 06:13:28,874 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:13:28,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2021-11-20 06:13:28,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 06:13:28,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 06:13:28,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 06:13:28,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:13:28,879 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:13:28,879 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:13:28,879 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:13:28,887 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:13:28,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:13:28,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:13:28,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 06:13:28,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:13:28 BoogieIcfgContainer [2021-11-20 06:13:28,894 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:13:28,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:13:28,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:13:28,898 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:13:28,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:25" (3/4) ... [2021-11-20 06:13:28,901 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:13:28,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:13:28,903 INFO L158 Benchmark]: Toolchain (without parser) took 4377.43ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.2MB in the beginning and 59.7MB in the end (delta: -5.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-11-20 06:13:28,904 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:13:28,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.97ms. Allocated memory is still 90.2MB. Free memory was 54.0MB in the beginning and 58.6MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:13:28,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.05ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 56.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:13:28,911 INFO L158 Benchmark]: Boogie Preprocessor took 46.44ms. Allocated memory is still 90.2MB. Free memory was 56.7MB in the beginning and 55.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:13:28,912 INFO L158 Benchmark]: RCFGBuilder took 417.56ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 45.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:13:28,913 INFO L158 Benchmark]: BuchiAutomizer took 3317.99ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 45.6MB in the beginning and 60.5MB in the end (delta: -14.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-11-20 06:13:28,913 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 59.7MB in the end (delta: 846.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:13:28,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 59.3MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.97ms. Allocated memory is still 90.2MB. Free memory was 54.0MB in the beginning and 58.6MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.05ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 56.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.44ms. Allocated memory is still 90.2MB. Free memory was 56.7MB in the beginning and 55.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 417.56ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 45.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3317.99ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 45.6MB in the beginning and 60.5MB in the end (delta: -14.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 59.7MB in the end (delta: 846.2kB). 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 cp and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital139 mio100 ax112 hnf100 lsp82 ukn100 mio100 lsp54 div205 bol100 ite100 ukn100 eq168 hnf64 smp95 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 72ms VariablesStem: 3 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 06:13:28,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:29,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e19155-faea-475e-a25d-027e305054b7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE