./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:09:42,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:09:42,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:09:42,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:09:42,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:09:42,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:09:42,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:09:42,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:09:42,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:09:42,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:09:42,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:09:42,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:09:42,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:09:42,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:09:42,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:09:42,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:09:42,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:09:42,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:09:42,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:09:42,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:09:42,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:09:42,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:09:42,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:09:42,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:09:42,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:09:42,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:09:42,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:09:42,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:09:42,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:09:42,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:09:42,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:09:42,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:09:42,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:09:42,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:09:42,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:09:42,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:09:42,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:09:42,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:09:42,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:09:42,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:09:42,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:09:42,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:09:42,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:09:42,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:09:42,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:09:42,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:09:42,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:09:42,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:09:42,249 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:09:42,249 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:09:42,249 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:09:42,249 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:09:42,250 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:09:42,250 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:09:42,250 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:09:42,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:09:42,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:09:42,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:09:42,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:09:42,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:09:42,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:09:42,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:09:42,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:09:42,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:09:42,253 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:09:42,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:09:42,253 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:09:42,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:09:42,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:09:42,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:09:42,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:09:42,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:09:42,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:09:42,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:09:42,256 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:09:42,256 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_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 [2021-10-28 23:09:42,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:09:42,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:09:42,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:09:42,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:09:42,615 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:09:42,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2021-10-28 23:09:42,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/data/c40d42a2e/b5886d5fded14e4b922e5155ee0924f8/FLAGbad2a89c8 [2021-10-28 23:09:43,336 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:09:43,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2021-10-28 23:09:43,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/data/c40d42a2e/b5886d5fded14e4b922e5155ee0924f8/FLAGbad2a89c8 [2021-10-28 23:09:43,635 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/data/c40d42a2e/b5886d5fded14e4b922e5155ee0924f8 [2021-10-28 23:09:43,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:09:43,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:09:43,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:43,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:09:43,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:09:43,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:43" (1/1) ... [2021-10-28 23:09:43,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a870bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:43, skipping insertion in model container [2021-10-28 23:09:43,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:43" (1/1) ... [2021-10-28 23:09:43,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:09:43,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:09:44,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:44,149 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:09:44,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:44,243 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:09:44,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44 WrapperNode [2021-10-28 23:09:44,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:44,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:44,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:09:44,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:09:44,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:44,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:09:44,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:09:44,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:09:44,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:09:44,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:09:44,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:09:44,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:09:44,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (1/1) ... [2021-10-28 23:09:44,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:44,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:44,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:44,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:09:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:09:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:09:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:09:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:09:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:09:44,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:09:44,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:09:44,698 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 23:09:44,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:44 BoogieIcfgContainer [2021-10-28 23:09:44,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:09:44,701 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:09:44,702 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:09:44,705 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:09:44,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:09:44,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:09:43" (1/3) ... [2021-10-28 23:09:44,708 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d6c5bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:09:44, skipping insertion in model container [2021-10-28 23:09:44,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:09:44,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:44" (2/3) ... [2021-10-28 23:09:44,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d6c5bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:09:44, skipping insertion in model container [2021-10-28 23:09:44,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:09:44,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:44" (3/3) ... [2021-10-28 23:09:44,711 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpcpy-alloca-1.i [2021-10-28 23:09:44,768 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:09:44,769 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:09:44,769 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:09:44,769 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:09:44,769 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:09:44,769 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:09:44,770 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:09:44,770 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:09:44,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-10-28 23:09:44,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 23:09:44,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:44,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:44,830 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:09:44,830 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:09:44,830 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:09:44,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-10-28 23:09:44,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 23:09:44,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:44,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:44,837 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:09:44,837 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:09:44,845 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 12#L521true assume !(main_~length1~0 < 1); 8#L521-2true assume !(main_~length2~0 < 1); 11#L524-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 4#L531-3true [2021-10-28 23:09:44,848 INFO L793 eck$LassoCheckResult]: Loop: 4#L531-3true assume !!(main_~i~0 < main_~length2~0);call write~int(main_#t~nondet10, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 13#L531-2true main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 4#L531-3true [2021-10-28 23:09:44,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:44,865 INFO L85 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2021-10-28 23:09:44,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:44,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750208409] [2021-10-28 23:09:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:44,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:45,036 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:45,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:45,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1827, now seen corresponding path program 1 times [2021-10-28 23:09:45,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:45,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402227297] [2021-10-28 23:09:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:45,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:45,124 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:45,151 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:45,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939692, now seen corresponding path program 1 times [2021-10-28 23:09:45,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:45,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090530097] [2021-10-28 23:09:45,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:45,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:45,233 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:45,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:45,907 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:45,908 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:45,908 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:45,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:45,909 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:09:45,909 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:45,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:45,909 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:45,909 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca-1.i_Iteration1_Lasso [2021-10-28 23:09:45,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:45,910 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:45,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:45,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:46,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:46,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:46,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:46,583 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:09:46,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:46,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:46,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:46,596 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 [2021-10-28 23:09:46,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:46,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:46,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:46,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:46,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:46,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:46,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:09:46,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:46,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:46,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:46,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:46,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:46,701 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 [2021-10-28 23:09:46,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:09:46,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:46,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:46,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:46,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:46,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:46,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:46,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:46,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:46,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 23:09:46,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:46,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:46,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:46,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:09:46,785 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 [2021-10-28 23:09:46,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:46,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:46,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:46,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:46,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:46,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:46,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:46,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:46,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 23:09:46,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:46,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:46,829 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:46,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:09:46,850 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 [2021-10-28 23:09:46,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:46,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:46,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:46,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:46,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:46,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:46,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:46,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:46,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:46,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:46,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:46,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:46,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:09:46,903 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 [2021-10-28 23:09:46,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:46,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:46,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:46,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:46,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:46,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:46,933 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:46,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:46,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:46,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:46,978 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:46,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:09:46,993 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 [2021-10-28 23:09:47,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:47,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:47,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:47,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-28 23:09:47,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,037 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:09:47,044 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 [2021-10-28 23:09:47,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,129 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:09:47,133 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 [2021-10-28 23:09:47,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,227 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:09:47,237 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 [2021-10-28 23:09:47,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,285 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:09:47,288 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 [2021-10-28 23:09:47,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:47,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:47,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:47,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,357 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,365 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 [2021-10-28 23:09:47,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:09:47,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:09:47,448 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 [2021-10-28 23:09:47,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:47,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:47,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:47,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,531 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,537 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 [2021-10-28 23:09:47,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:09:47,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,693 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:09:47,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:09:47,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,777 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,784 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 [2021-10-28 23:09:47,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:09:47,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,868 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:09:47,870 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 [2021-10-28 23:09:47,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,905 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,925 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:09:47,999 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-10-28 23:09:47,999 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-28 23:09:48,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:48,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:48,003 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:48,043 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:09:48,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:09:48,062 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 23:09:48,062 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:09:48,063 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~nondetString~0.base)_1) = -1*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~nondetString~0.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetString~0.offset >= 0] [2021-10-28 23:09:48,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:48,150 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2021-10-28 23:09:48,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:48,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:09:48,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:48,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:48,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:48,331 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 [2021-10-28 23:09:48,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,411 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 50 transitions. Complement of second has 7 states. [2021-10-28 23:09:48,411 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 [2021-10-28 23:09:48,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-28 23:09:48,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:09:48,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:48,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 23:09:48,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:48,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 23:09:48,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:48,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2021-10-28 23:09:48,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:09:48,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 12 states and 16 transitions. [2021-10-28 23:09:48,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 23:09:48,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:09:48,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-28 23:09:48,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:48,430 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 23:09:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-28 23:09:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 23:09:48,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 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) [2021-10-28 23:09:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-28 23:09:48,460 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 23:09:48,460 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 23:09:48,460 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:09:48,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-28 23:09:48,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:09:48,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:48,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:48,462 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:48,462 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:09:48,462 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 141#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 147#L521 assume !(main_~length1~0 < 1); 145#L521-2 assume !(main_~length2~0 < 1); 146#L524-1 assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 136#L531-3 assume !(main_~i~0 < main_~length2~0); 137#L531-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; 144#L515-4 [2021-10-28 23:09:48,462 INFO L793 eck$LassoCheckResult]: Loop: 144#L515-4 call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); 142#L515-1 assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; 143#L515-3 cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; 144#L515-4 [2021-10-28 23:09:48,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939634, now seen corresponding path program 1 times [2021-10-28 23:09:48,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389836062] [2021-10-28 23:09:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:48,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:48,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389836062] [2021-10-28 23:09:48,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389836062] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:48,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:48,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:09:48,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667259976] [2021-10-28 23:09:48,593 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:09:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,595 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 1 times [2021-10-28 23:09:48,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257195157] [2021-10-28 23:09:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,620 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:48,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:48,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:09:48,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:09:48,782 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:48,814 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-10-28 23:09:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:09:48,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-10-28 23:09:48,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:09:48,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2021-10-28 23:09:48,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 23:09:48,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:09:48,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-10-28 23:09:48,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:48,824 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 23:09:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-10-28 23:09:48,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-28 23:09:48,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-10-28 23:09:48,829 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:09:48,829 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:09:48,829 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:09:48,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-10-28 23:09:48,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:09:48,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:48,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:48,833 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:48,833 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:09:48,833 INFO L791 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 173#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 179#L521 assume !(main_~length1~0 < 1); 177#L521-2 assume !(main_~length2~0 < 1); 178#L524-1 assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 168#L531-3 assume !!(main_~i~0 < main_~length2~0);call write~int(main_#t~nondet10, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 169#L531-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 170#L531-3 assume !(main_~i~0 < main_~length2~0); 171#L531-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; 176#L515-4 [2021-10-28 23:09:48,834 INFO L793 eck$LassoCheckResult]: Loop: 176#L515-4 call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); 174#L515-1 assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; 175#L515-3 cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; 176#L515-4 [2021-10-28 23:09:48,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1302257236, now seen corresponding path program 1 times [2021-10-28 23:09:48,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115856502] [2021-10-28 23:09:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,883 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:48,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,926 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 2 times [2021-10-28 23:09:48,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478390347] [2021-10-28 23:09:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,945 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,959 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash -894230189, now seen corresponding path program 1 times [2021-10-28 23:09:48,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624512098] [2021-10-28 23:09:48,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:49,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:49,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624512098] [2021-10-28 23:09:49,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624512098] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:09:49,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097415760] [2021-10-28 23:09:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:49,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:09:49,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:49,223 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:09:49,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 23:09:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:49,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 23:09:49,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:49,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:49,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-28 23:09:49,758 INFO L354 Elim1Store]: treesize reduction 8, result has 27.3 percent of original size [2021-10-28 23:09:49,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2021-10-28 23:09:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:49,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097415760] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:09:49,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:09:49,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-28 23:09:49,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898927637] [2021-10-28 23:09:49,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:49,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:09:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:09:49,908 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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) [2021-10-28 23:09:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:50,149 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-28 23:09:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:09:50,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-10-28 23:09:50,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:09:50,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 15 states and 18 transitions. [2021-10-28 23:09:50,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 23:09:50,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:09:50,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2021-10-28 23:09:50,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:50,151 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 23:09:50,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2021-10-28 23:09:50,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-28 23:09:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-10-28 23:09:50,154 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-28 23:09:50,154 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-28 23:09:50,154 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:09:50,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2021-10-28 23:09:50,154 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:09:50,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:50,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:50,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:50,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:09:50,155 INFO L791 eck$LassoCheckResult]: Stem: 260#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 261#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 268#L521 assume !(main_~length1~0 < 1); 265#L521-2 assume !(main_~length2~0 < 1); 266#L524-1 assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 256#L531-3 assume !!(main_~i~0 < main_~length2~0);call write~int(main_#t~nondet10, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 257#L531-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 258#L531-3 assume !!(main_~i~0 < main_~length2~0);call write~int(main_#t~nondet10, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 259#L531-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 269#L531-3 assume !(main_~i~0 < main_~length2~0); 267#L531-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; 264#L515-4 [2021-10-28 23:09:50,155 INFO L793 eck$LassoCheckResult]: Loop: 264#L515-4 call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); 262#L515-1 assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; 263#L515-3 cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; 264#L515-4 [2021-10-28 23:09:50,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:50,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1633777206, now seen corresponding path program 2 times [2021-10-28 23:09:50,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:50,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661189603] [2021-10-28 23:09:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:50,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,204 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,234 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:50,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:50,237 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 3 times [2021-10-28 23:09:50,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:50,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890890793] [2021-10-28 23:09:50,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:50,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,250 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,261 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:50,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:50,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1287382577, now seen corresponding path program 2 times [2021-10-28 23:09:50,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:50,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963822286] [2021-10-28 23:09:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:50,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,283 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:51,448 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:51,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:51,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:51,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:51,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:09:51,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:51,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:51,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:51,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca-1.i_Iteration4_Lasso [2021-10-28 23:09:51,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:51,449 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:51,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:51,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:52,548 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:52,548 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:09:52,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:52,565 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:52,593 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 [2021-10-28 23:09:52,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:09:52,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:52,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:52,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:52,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:52,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:52,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:52,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:52,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:52,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:52,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:52,630 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:52,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:09:52,640 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 [2021-10-28 23:09:52,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:52,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:52,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:52,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:52,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:52,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:52,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:52,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:52,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-10-28 23:09:52,676 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:52,677 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:52,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:09:52,679 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 [2021-10-28 23:09:52,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:52,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:52,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:52,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:52,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:52,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:52,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:52,690 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:52,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:52,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:52,717 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:52,740 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 [2021-10-28 23:09:52,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:52,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:52,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:52,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:52,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:52,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:52,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:09:52,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:52,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:52,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:52,823 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:52,829 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 [2021-10-28 23:09:52,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:52,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:52,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:52,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:52,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:09:52,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:52,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:52,892 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:09:52,980 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2021-10-28 23:09:52,980 INFO L444 ModelExtractionUtils]: 23 out of 46 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-10-28 23:09:52,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:52,983 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:52,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:09:52,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:09:53,021 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:09:53,021 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:09:53,021 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString~0.base)_2, ULTIMATE.start_cstpcpy_~to.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString~0.base)_2 - 1*ULTIMATE.start_cstpcpy_~to.offset Supporting invariants [] [2021-10-28 23:09:53,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:53,136 INFO L297 tatePredicateManager]: 12 out of 15 supporting invariants were superfluous and have been removed [2021-10-28 23:09:53,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:53,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:09:53,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:53,377 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:09:53,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:53,460 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 23:09:53,461 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 23:09:53,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17 states and 21 transitions. Complement of second has 5 states. [2021-10-28 23:09:53,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 23:09:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-28 23:09:53,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 3 letters. [2021-10-28 23:09:53,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:53,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 23:09:53,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:53,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 6 letters. [2021-10-28 23:09:53,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:53,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-10-28 23:09:53,513 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:09:53,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2021-10-28 23:09:53,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:09:53,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:09:53,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:09:53,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:53,514 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:09:53,514 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:09:53,514 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:09:53,514 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:09:53,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:09:53,514 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:09:53,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:09:53,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:09:53 BoogieIcfgContainer [2021-10-28 23:09:53,522 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:09:53,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:53,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:53,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:53,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:44" (3/4) ... [2021-10-28 23:09:53,526 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:09:53,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:53,527 INFO L168 Benchmark]: Toolchain (without parser) took 9887.66 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 58.5 MB in the beginning and 53.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:53,528 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 64.1 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:53,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.79 ms. Allocated memory is still 94.4 MB. Free memory was 58.4 MB in the beginning and 63.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:53,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.34 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:53,530 INFO L168 Benchmark]: Boogie Preprocessor took 41.63 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 60.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:53,531 INFO L168 Benchmark]: RCFGBuilder took 356.33 ms. Allocated memory is still 94.4 MB. Free memory was 60.4 MB in the beginning and 50.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:53,531 INFO L168 Benchmark]: BuchiAutomizer took 8820.35 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 50.4 MB in the beginning and 54.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:53,532 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 125.8 MB. Free memory was 54.2 MB in the beginning and 53.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:53,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 64.1 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 601.79 ms. Allocated memory is still 94.4 MB. Free memory was 58.4 MB in the beginning and 63.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.34 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.63 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 60.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 356.33 ms. Allocated memory is still 94.4 MB. Free memory was 60.4 MB in the beginning and 50.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8820.35 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 50.4 MB in the beginning and 54.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.90 ms. Allocated memory is still 125.8 MB. Free memory was 54.2 MB in the beginning and 53.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[nondetString] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString] + -1 * to and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 7.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 14 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 44 SDtfs, 56 SDslu, 67 SDs, 0 SdLazy, 89 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital171 mio100 ax111 hnf99 lsp83 ukn80 mio100 lsp55 div100 bol100 ite100 ukn100 eq176 hnf89 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:09:53,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 23:09:53,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-10-28 23:09:53,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d31b266-6730-4892-92c7-26b415e781bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...