./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY --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 32b638142d47f07114d40dfbdfc741b7fdcb6c00b04416e88fb2c521a1626d73 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:51:51,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:51:51,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:51:51,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:51:51,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:51:51,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:51:51,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:51:51,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:51:51,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:51:51,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:51:51,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:51:51,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:51:51,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:51:51,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:51:51,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:51:51,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:51:51,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:51:51,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:51:51,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:51:51,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:51:51,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:51:51,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:51:51,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:51:51,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:51:51,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:51:51,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:51:51,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:51:51,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:51:51,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:51:51,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:51:51,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:51:51,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:51:51,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:51:51,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:51:51,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:51:51,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:51:51,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:51:51,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:51:51,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:51:51,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:51:51,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:51:51,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-07 07:51:51,376 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:51:51,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:51:51,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:51:51,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:51:51,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:51:51,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:51:51,379 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:51:51,380 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 07:51:51,380 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 07:51:51,380 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 07:51:51,381 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 07:51:51,381 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 07:51:51,382 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 07:51:51,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:51:51,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:51:51,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:51:51,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:51:51,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 07:51:51,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 07:51:51,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 07:51:51,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:51:51,384 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 07:51:51,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:51:51,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 07:51:51,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:51:51,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:51:51,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:51:51,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:51:51,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:51:51,389 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 07:51:51,389 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_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32b638142d47f07114d40dfbdfc741b7fdcb6c00b04416e88fb2c521a1626d73 [2021-11-07 07:51:51,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:51:51,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:51:51,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:51:51,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:51:51,681 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:51:51,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i [2021-11-07 07:51:51,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/data/0eece8a67/b3629541962a4f789ac2328ef8140d5d/FLAGdedc1992d [2021-11-07 07:51:52,370 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:51:52,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i [2021-11-07 07:51:52,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/data/0eece8a67/b3629541962a4f789ac2328ef8140d5d/FLAGdedc1992d [2021-11-07 07:51:52,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/data/0eece8a67/b3629541962a4f789ac2328ef8140d5d [2021-11-07 07:51:52,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:51:52,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:51:52,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:51:52,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:51:52,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:51:52,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:51:52" (1/1) ... [2021-11-07 07:51:52,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d1b5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:52, skipping insertion in model container [2021-11-07 07:51:52,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:51:52" (1/1) ... [2021-11-07 07:51:52,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:51:52,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:51:53,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:51:53,134 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:51:53,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:51:53,206 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:51:53,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53 WrapperNode [2021-11-07 07:51:53,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:51:53,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:51:53,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:51:53,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:51:53,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:51:53,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:51:53,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:51:53,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:51:53,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:51:53,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:51:53,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:51:53,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:51:53,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (1/1) ... [2021-11-07 07:51:53,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:53,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:53,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 07:51:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:51:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:51:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:51:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:51:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:51:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:51:53,688 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:51:53,688 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-07 07:51:53,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:53 BoogieIcfgContainer [2021-11-07 07:51:53,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:51:53,691 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 07:51:53,691 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 07:51:53,694 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 07:51:53,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:51:53,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 07:51:52" (1/3) ... [2021-11-07 07:51:53,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d332635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:51:53, skipping insertion in model container [2021-11-07 07:51:53,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:51:53,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:53" (2/3) ... [2021-11-07 07:51:53,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d332635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:51:53, skipping insertion in model container [2021-11-07 07:51:53,697 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:51:53,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:53" (3/3) ... [2021-11-07 07:51:53,698 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrncat_diffterm_alloca.i [2021-11-07 07:51:53,746 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 07:51:53,746 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 07:51:53,746 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 07:51:53,746 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 07:51:53,746 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 07:51:53,746 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 07:51:53,747 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 07:51:53,747 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 07:51:53,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:53,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-07 07:51:53,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:51:53,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:51:53,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 07:51:53,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 07:51:53,788 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 07:51:53,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:53,790 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-07 07:51:53,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:51:53,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:51:53,791 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 07:51:53,791 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 07:51:53,798 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; 18#L381true assume !(main_~length1~0 < 1); 15#L381-2true assume !(main_~length2~0 < 1); 13#L384-1true assume !(main_~n~0 < 1); 17#L387-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 3#L367-3true [2021-11-07 07:51:53,798 INFO L793 eck$LassoCheckResult]: Loop: 3#L367-3true call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 16#L367-1true assume !!(49 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205;cstrncat_#t~post206.base, cstrncat_#t~post206.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post206.base, 1 + cstrncat_#t~post206.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset; 3#L367-3true [2021-11-07 07:51:53,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2021-11-07 07:51:53,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:53,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747588616] [2021-11-07 07:51:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:53,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:53,976 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:51:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:54,070 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:51:54,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2021-11-07 07:51:54,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:54,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330094681] [2021-11-07 07:51:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:54,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:54,106 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:51:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:54,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:51:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2021-11-07 07:51:54,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:54,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472295119] [2021-11-07 07:51:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:54,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:54,167 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:51:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:51:54,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:51:55,175 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:51:55,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:51:55,176 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:51:55,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:51:55,177 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:51:55,177 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:55,177 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:51:55,177 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:51:55,177 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat_diffterm_alloca.i_Iteration1_Lasso [2021-11-07 07:51:55,177 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:51:55,178 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:51:55,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:55,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:51:56,058 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:51:56,062 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:51:56,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 07:51:56,078 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 [2021-11-07 07:51:56,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:51:56,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:51:56,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:51:56,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 07:51:56,157 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 [2021-11-07 07:51:56,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:51:56,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:51:56,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 07:51:56,207 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 [2021-11-07 07:51:56,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:51:56,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:51:56,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:51:56,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,280 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 [2021-11-07 07:51:56,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:51:56,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:51:56,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:51:56,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 07:51:56,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 07:51:56,322 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 [2021-11-07 07:51:56,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:51:56,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:51:56,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:51:56,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,379 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,388 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 [2021-11-07 07:51:56,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 07:51:56,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:51:56,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:51:56,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:51:56,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,457 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,460 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 [2021-11-07 07:51:56,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 07:51:56,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:51:56,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:51:56,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:51:56,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-07 07:51:56,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,510 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 07:51:56,512 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 [2021-11-07 07:51:56,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:51:56,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:51:56,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:51:56,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,544 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 07:51:56,547 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 [2021-11-07 07:51:56,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:51:56,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:51:56,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:51:56,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,606 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 07:51:56,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:51:56,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:51:56,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:51:56,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:51:56,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:51:56,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:51:56,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:51:56,654 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:51:56,765 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2021-11-07 07:51:56,765 INFO L444 ModelExtractionUtils]: 15 out of 55 variables were initially zero. Simplification set additionally 35 variables to zero. [2021-11-07 07:51:56,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:51:56,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:51:56,780 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:51:56,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 07:51:56,837 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:51:56,861 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-07 07:51:56,861 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:51:56,862 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_cstrncat_~s~0.offset) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrncat_~s~0.base)_1 + 1*ULTIMATE.start_main_~length1~0 >= 0] [2021-11-07 07:51:56,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:56,970 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-11-07 07:51:57,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:51:57,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 07:51:57,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:51:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:51:57,078 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:51:57,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:51:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:51:57,128 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 [2021-11-07 07:51:57,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:57,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:57,267 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 53 states and 76 transitions. Complement of second has 7 states. [2021-11-07 07:51:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-07 07:51:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2021-11-07 07:51:57,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-07 07:51:57,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:51:57,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-07 07:51:57,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:51:57,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-07 07:51:57,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:51:57,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 76 transitions. [2021-11-07 07:51:57,286 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 07:51:57,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 20 states and 27 transitions. [2021-11-07 07:51:57,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-07 07:51:57,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-07 07:51:57,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-11-07 07:51:57,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:51:57,293 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-07 07:51:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-11-07 07:51:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-11-07 07:51:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:51:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-11-07 07:51:57,320 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-11-07 07:51:57,320 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-11-07 07:51:57,320 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 07:51:57,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2021-11-07 07:51:57,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 07:51:57,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:51:57,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:51:57,326 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:51:57,326 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 07:51:57,326 INFO L791 eck$LassoCheckResult]: Stem: 177#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 178#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; 183#L381 assume !(main_~length1~0 < 1); 182#L381-2 assume !(main_~length2~0 < 1); 180#L384-1 assume !(main_~n~0 < 1); 181#L387-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 171#L367-3 call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 172#L367-1 assume !(49 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205; 169#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 170#L369 assume !cstrncat_#t~short209; 179#L369-2 assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~mem208;havoc cstrncat_#t~short209;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; 184#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 168#L369 [2021-11-07 07:51:57,326 INFO L793 eck$LassoCheckResult]: Loop: 168#L369 assume !cstrncat_#t~short209; 174#L369-2 assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~mem208;havoc cstrncat_#t~short209;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; 167#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 168#L369 [2021-11-07 07:51:57,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:57,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1662025132, now seen corresponding path program 1 times [2021-11-07 07:51:57,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:57,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91889479] [2021-11-07 07:51:57,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:57,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:51:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:51:57,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:51:57,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91889479] [2021-11-07 07:51:57,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91889479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:51:57,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:51:57,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:51:57,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088194909] [2021-11-07 07:51:57,431 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:51:57,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:51:57,431 INFO L85 PathProgramCache]: Analyzing trace with hash 76643, now seen corresponding path program 1 times [2021-11-07 07:51:57,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:51:57,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710098053] [2021-11-07 07:51:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:51:57,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:51:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:51:57,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:51:57,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:51:57,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710098053] [2021-11-07 07:51:57,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710098053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:51:57,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:51:57,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:51:57,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845501605] [2021-11-07 07:51:57,449 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-07 07:51:57,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:51:57,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:51:57,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:51:57,453 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-07 07:51:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:51:57,471 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-11-07 07:51:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:51:57,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-11-07 07:51:57,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:51:57,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-11-07 07:51:57,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 07:51:57,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 07:51:57,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 07:51:57,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:51:57,473 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:51:57,473 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:51:57,473 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:51:57,474 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 07:51:57,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:51:57,474 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:51:57,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 07:51:57,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 07:51:57 BoogieIcfgContainer [2021-11-07 07:51:57,479 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 07:51:57,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:51:57,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:51:57,480 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:51:57,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:53" (3/4) ... [2021-11-07 07:51:57,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:51:57,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:51:57,485 INFO L168 Benchmark]: Toolchain (without parser) took 4836.08 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 80.8 MB in the beginning and 97.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:57,485 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 111.1 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:57,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.45 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 80.6 MB in the beginning and 104.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:57,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.88 ms. Allocated memory is still 138.4 MB. Free memory was 104.8 MB in the beginning and 102.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:57,487 INFO L168 Benchmark]: Boogie Preprocessor took 34.96 ms. Allocated memory is still 138.4 MB. Free memory was 102.6 MB in the beginning and 101.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:57,488 INFO L168 Benchmark]: RCFGBuilder took 387.75 ms. Allocated memory is still 138.4 MB. Free memory was 101.1 MB in the beginning and 90.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:57,488 INFO L168 Benchmark]: BuchiAutomizer took 3788.59 ms. Allocated memory is still 138.4 MB. Free memory was 89.9 MB in the beginning and 98.0 MB in the end (delta: -8.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:57,489 INFO L168 Benchmark]: Witness Printer took 3.53 ms. Allocated memory is still 138.4 MB. Free memory was 98.0 MB in the beginning and 97.0 MB in the end (delta: 970.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:57,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 111.1 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 555.45 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 80.6 MB in the beginning and 104.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.88 ms. Allocated memory is still 138.4 MB. Free memory was 104.8 MB in the beginning and 102.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.96 ms. Allocated memory is still 138.4 MB. Free memory was 102.6 MB in the beginning and 101.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 387.75 ms. Allocated memory is still 138.4 MB. Free memory was 101.1 MB in the beginning and 90.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3788.59 ms. Allocated memory is still 138.4 MB. Free memory was 89.9 MB in the beginning and 98.0 MB in the end (delta: -8.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.53 ms. Allocated memory is still 138.4 MB. Free memory was 98.0 MB in the beginning and 97.0 MB in the end (delta: 970.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * s and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 26 SDslu, 23 SDs, 0 SdLazy, 16 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital197 mio100 ax100 hnf100 lsp96 ukn76 mio100 lsp52 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 07:51:57,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad358f11-fa7a-4a5a-8210-a3df43614c06/bin/uautomizer-AkOaLMaTGY/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