./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:40:41,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:40:41,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:40:41,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:40:41,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:40:41,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:40:41,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:40:41,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:40:41,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:40:41,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:40:41,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:40:41,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:40:41,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:40:41,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:40:41,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:40:41,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:40:41,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:40:41,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:40:41,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:40:41,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:40:41,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:40:41,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:40:41,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:40:41,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:40:41,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:40:41,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:40:41,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:40:41,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:40:41,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:40:41,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:40:41,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:40:41,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:40:41,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:40:41,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:40:41,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:40:41,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:40:41,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:40:41,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:40:41,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:40:41,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:40:41,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:40:41,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:40:41,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:40:41,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:40:41,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:40:41,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:40:41,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:40:41,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:40:41,328 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:40:41,328 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:40:41,328 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:40:41,329 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:40:41,330 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:40:41,330 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:40:41,330 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:40:41,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:40:41,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:40:41,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:40:41,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:40:41,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:40:41,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:40:41,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:40:41,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:40:41,333 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:40:41,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:40:41,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:40:41,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:40:41,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:40:41,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:40:41,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:40:41,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:40:41,338 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:40:41,338 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_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 [2021-10-28 09:40:41,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:40:41,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:40:41,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:40:41,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:40:41,659 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:40:41,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-10-28 09:40:41,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/data/a7e9011b6/91918585e6964681a1bd7b16fcc36f55/FLAGfc5960f11 [2021-10-28 09:40:42,330 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:40:42,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-10-28 09:40:42,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/data/a7e9011b6/91918585e6964681a1bd7b16fcc36f55/FLAGfc5960f11 [2021-10-28 09:40:42,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/data/a7e9011b6/91918585e6964681a1bd7b16fcc36f55 [2021-10-28 09:40:42,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:40:42,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:40:42,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:40:42,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:40:42,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:40:42,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:42" (1/1) ... [2021-10-28 09:40:42,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c41c0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:42, skipping insertion in model container [2021-10-28 09:40:42,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:42" (1/1) ... [2021-10-28 09:40:42,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:40:42,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:40:43,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:40:43,134 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:40:43,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:40:43,220 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:40:43,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43 WrapperNode [2021-10-28 09:40:43,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:40:43,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:40:43,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:40:43,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:40:43,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:40:43,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:40:43,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:40:43,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:40:43,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:40:43,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:40:43,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:40:43,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:40:43,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (1/1) ... [2021-10-28 09:40:43,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:43,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:43,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:43,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:40:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:40:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:40:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:40:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:40:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:40:43,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:40:43,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:40:43,791 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 09:40:43,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:43 BoogieIcfgContainer [2021-10-28 09:40:43,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:40:43,794 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:40:43,794 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:40:43,797 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:40:43,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:40:43,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:40:42" (1/3) ... [2021-10-28 09:40:43,800 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7334f2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:40:43, skipping insertion in model container [2021-10-28 09:40:43,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:40:43,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:43" (2/3) ... [2021-10-28 09:40:43,801 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7334f2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:40:43, skipping insertion in model container [2021-10-28 09:40:43,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:40:43,802 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:43" (3/3) ... [2021-10-28 09:40:43,803 INFO L389 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2021-10-28 09:40:43,855 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:40:43,855 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:40:43,855 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:40:43,855 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:40:43,855 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:40:43,855 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:40:43,856 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:40:43,856 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:40:43,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:43,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:40:43,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:43,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:43,907 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:40:43,907 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:40:43,907 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:40:43,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:43,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:40:43,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:43,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:43,912 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:40:43,913 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:40:43,919 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~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 3#L569true [2021-10-28 09:40:43,920 INFO L793 eck$LassoCheckResult]: Loop: 3#L569true assume !true; 13#L564true goto; 12#L567true call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 8#L564-1true assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 10#L566true assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 3#L569true [2021-10-28 09:40:43,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:43,928 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:40:43,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:43,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292717471] [2021-10-28 09:40:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:43,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,098 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:44,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:44,170 INFO L85 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2021-10-28 09:40:44,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:44,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124632276] [2021-10-28 09:40:44,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:44,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:44,211 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 09:40:44,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:40:44,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124632276] [2021-10-28 09:40:44,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124632276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:44,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:44,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 09:40:44,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138876804] [2021-10-28 09:40:44,218 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:40:44,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:40:44,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:40:44,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:40:44,236 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 1 states have internal predecessors, (5), 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 09:40:44,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:44,242 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-10-28 09:40:44,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:40:44,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-28 09:40:44,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:40:44,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-10-28 09:40:44,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 09:40:44,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 09:40:44,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-28 09:40:44,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:40:44,252 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:40:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-28 09:40:44,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 09:40:44,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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 09:40:44,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-28 09:40:44,296 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:40:44,296 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:40:44,296 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:40:44,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-28 09:40:44,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:40:44,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:44,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:44,298 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:40:44,298 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:44,298 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 41#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 38#L569 [2021-10-28 09:40:44,299 INFO L793 eck$LassoCheckResult]: Loop: 38#L569 goto; 39#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 44#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 43#L564 goto; 45#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 46#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 47#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 38#L569 [2021-10-28 09:40:44,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-10-28 09:40:44,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:44,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948543953] [2021-10-28 09:40:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:44,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,354 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:44,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:44,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2021-10-28 09:40:44,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:44,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391900667] [2021-10-28 09:40:44,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:44,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,412 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:44,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:44,430 INFO L85 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2021-10-28 09:40:44,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:44,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074930379] [2021-10-28 09:40:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:44,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,464 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:44,505 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:45,844 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:45,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:45,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:45,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:45,845 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:40:45,845 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:45,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:45,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:45,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2021-10-28 09:40:45,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:45,846 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:45,874 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 09:40:45,879 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 09:40:45,882 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 09:40:45,885 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 09:40:46,587 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 09:40:46,591 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 09:40:46,594 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 09:40:46,598 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 09:40:46,601 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 09:40:46,604 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 09:40:46,607 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 09:40:46,609 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 09:40:46,611 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 09:40:46,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,617 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 09:40:46,620 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 09:40:46,622 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 09:40:46,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:46,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:40:47,258 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:47,264 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:40:47,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:40:47,287 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 09:40:47,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:47,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:47,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:47,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 09:40:47,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:40:47,352 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 09:40:47,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:47,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:47,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:47,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,426 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:40:47,437 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 09:40:47,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:47,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:47,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:47,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,490 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:40:47,491 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 09:40:47,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:47,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:47,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,550 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:40:47,551 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 09:40:47,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:47,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:47,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,625 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:40:47,632 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 09:40:47,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:47,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:47,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,693 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:40:47,698 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 09:40:47,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:47,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:47,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,794 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:40:47,798 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 09:40:47,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:47,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:47,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:47,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:47,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,894 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,901 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 09:40:47,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:47,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:47,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:47,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:47,914 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:47,914 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:47,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:40:47,933 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:40:47,952 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 09:40:47,952 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 09:40:47,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:47,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:47,963 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:47,990 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:40:48,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:40:48,026 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:40:48,026 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:40:48,027 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1 + 1 Supporting invariants [] [2021-10-28 09:40:48,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:48,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:48,305 INFO L297 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2021-10-28 09:40:48,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:48,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:40:48,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:48,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:40:48,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:48,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-10-28 09:40:48,527 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 09:40:48,531 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:40:48,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 09:40:48,574 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 20 states and 27 transitions. Complement of second has 6 states. [2021-10-28 09:40:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:40:48,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 09:40:48,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-28 09:40:48,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2021-10-28 09:40:48,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:48,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2021-10-28 09:40:48,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:48,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2021-10-28 09:40:48,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:48,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-10-28 09:40:48,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:48,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2021-10-28 09:40:48,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 09:40:48,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 09:40:48,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-28 09:40:48,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:48,585 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-28 09:40:48,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-28 09:40:48,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-10-28 09:40:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-28 09:40:48,587 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 09:40:48,587 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 09:40:48,587 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:40:48,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-28 09:40:48,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:48,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:48,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:48,589 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:40:48,589 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:48,589 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 288#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 297#L569 goto; 284#L560 [2021-10-28 09:40:48,590 INFO L793 eck$LassoCheckResult]: Loop: 284#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 292#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 289#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 284#L560 [2021-10-28 09:40:48,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,590 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-10-28 09:40:48,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:48,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829126239] [2021-10-28 09:40:48,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:48,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,613 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-10-28 09:40:48,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:48,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685275757] [2021-10-28 09:40:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:48,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,645 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,653 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2021-10-28 09:40:48,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:48,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447837664] [2021-10-28 09:40:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:48,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,680 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:48,716 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:49,798 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:49,798 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:49,799 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:49,799 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:49,799 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:40:49,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:49,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:49,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:49,799 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2021-10-28 09:40:49,799 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:49,799 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:49,804 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 09:40:49,807 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 09:40:49,809 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 09:40:50,403 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 09:40:50,406 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 09:40:50,408 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 09:40:50,411 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 09:40:50,413 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 09:40:50,417 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 09:40:50,419 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 09:40:50,421 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 09:40:50,423 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 09:40:50,425 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 09:40:50,426 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 09:40:50,434 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 09:40:50,436 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 09:40:50,438 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 09:40:50,440 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 09:40:50,442 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 09:40:50,444 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 09:40:50,446 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 09:40:50,934 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:50,934 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:40:50,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:50,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:50,942 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:50,954 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 09:40:50,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:50,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:50,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:50,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:50,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:50,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:50,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:50,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:40:50,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,022 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,028 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 09:40:51,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:51,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:51,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:51,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:40:51,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,086 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,092 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 09:40:51,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:40:51,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,159 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,164 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 09:40:51,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:40:51,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,227 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,234 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 09:40:51,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:40:51,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,312 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,320 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 09:40:51,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:40:51,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,383 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:40:51,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:40:51,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,459 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,466 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 09:40:51,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:40:51,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,527 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:40:51,530 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 09:40:51,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,597 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,603 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 09:40:51,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:40:51,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,671 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,673 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 09:40:51,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:40:51,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,735 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,737 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 09:40:51,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,747 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,747 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:40:51,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:51,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:51,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,806 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,808 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 09:40:51,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:51,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:51,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:51,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:51,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:51,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:51,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:40:51,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:40:51,865 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-28 09:40:51,865 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 09:40:51,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:51,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:51,866 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:51,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:40:51,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:40:51,894 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:40:51,894 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:40:51,894 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2 - 1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2 Supporting invariants [] [2021-10-28 09:40:51,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:52,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:52,116 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2021-10-28 09:40:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:52,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:40:52,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:52,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:40:52,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:52,221 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-28 09:40:52,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2021-10-28 09:40:52,248 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 09:40:52,249 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:40:52,249 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:52,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 43 transitions. Complement of second has 7 states. [2021-10-28 09:40:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:40:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:40:52,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-28 09:40:52,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 09:40:52,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:52,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 09:40:52,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:52,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 09:40:52,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:52,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2021-10-28 09:40:52,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:52,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2021-10-28 09:40:52,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 09:40:52,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 09:40:52,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-10-28 09:40:52,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:52,283 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-28 09:40:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-10-28 09:40:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-10-28 09:40:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 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 09:40:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-10-28 09:40:52,287 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-28 09:40:52,287 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-28 09:40:52,287 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:40:52,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2021-10-28 09:40:52,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:52,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:52,288 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:52,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:52,293 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:52,293 INFO L791 eck$LassoCheckResult]: Stem: 523#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 524#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 519#L569 goto; 520#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 536#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 528#L564 goto; 533#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 534#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 535#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 537#L569 goto; 526#L560 [2021-10-28 09:40:52,294 INFO L793 eck$LassoCheckResult]: Loop: 526#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 531#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 525#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 526#L560 [2021-10-28 09:40:52,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:52,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2021-10-28 09:40:52,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:52,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126013712] [2021-10-28 09:40:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:52,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:52,341 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:52,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:52,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:52,396 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2021-10-28 09:40:52,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:52,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383900080] [2021-10-28 09:40:52,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:52,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:52,405 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:52,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2021-10-28 09:40:52,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:52,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326908033] [2021-10-28 09:40:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:52,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:52,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:40:52,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326908033] [2021-10-28 09:40:52,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326908033] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:40:52,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936806894] [2021-10-28 09:40:52,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:52,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:40:52,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:52,632 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:40:52,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 09:40:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:52,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:40:52,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:52,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-10-28 09:40:52,882 INFO L354 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2021-10-28 09:40:52,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 35 [2021-10-28 09:40:52,920 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:40:52,920 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 26 treesize of output 22 [2021-10-28 09:40:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:52,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936806894] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:40:52,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:40:52,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-10-28 09:40:52,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279323016] [2021-10-28 09:40:53,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:40:53,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:40:53,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:40:53,040 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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 09:40:53,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:53,199 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2021-10-28 09:40:53,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:40:53,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2021-10-28 09:40:53,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:53,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2021-10-28 09:40:53,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 09:40:53,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 09:40:53,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-10-28 09:40:53,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:53,202 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-10-28 09:40:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-10-28 09:40:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-10-28 09:40:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 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 09:40:53,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-10-28 09:40:53,204 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 09:40:53,205 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 09:40:53,205 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:40:53,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2021-10-28 09:40:53,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:53,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:53,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:53,206 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:53,206 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:53,206 INFO L791 eck$LassoCheckResult]: Stem: 644#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 645#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 641#L569 goto; 642#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 653#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 648#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 649#L564 goto; 654#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 650#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 651#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 655#L569 goto; 647#L560 [2021-10-28 09:40:53,206 INFO L793 eck$LassoCheckResult]: Loop: 647#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 652#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 646#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 647#L560 [2021-10-28 09:40:53,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:53,207 INFO L85 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2021-10-28 09:40:53,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:53,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845445675] [2021-10-28 09:40:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:53,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:53,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:40:53,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845445675] [2021-10-28 09:40:53,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845445675] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:53,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:53,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:40:53,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741908576] [2021-10-28 09:40:53,289 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:40:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2021-10-28 09:40:53,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:53,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416077045] [2021-10-28 09:40:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:53,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:53,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:40:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:40:53,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:40:53,387 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 09:40:53,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:53,414 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-28 09:40:53,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:40:53,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-10-28 09:40:53,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:53,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2021-10-28 09:40:53,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 09:40:53,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 09:40:53,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-10-28 09:40:53,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:53,417 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-28 09:40:53,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-10-28 09:40:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 09:40:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 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 09:40:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-28 09:40:53,419 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-28 09:40:53,419 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-28 09:40:53,419 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:40:53,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-10-28 09:40:53,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:53,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:53,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:53,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:53,420 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:53,420 INFO L791 eck$LassoCheckResult]: Stem: 686#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 687#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 682#L569 goto; 683#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 695#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 690#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 685#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 699#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 698#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 696#L564 goto; 691#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 692#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 693#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 697#L569 goto; 689#L560 [2021-10-28 09:40:53,420 INFO L793 eck$LassoCheckResult]: Loop: 689#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 694#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 688#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 689#L560 [2021-10-28 09:40:53,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:53,421 INFO L85 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2021-10-28 09:40:53,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:53,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615561441] [2021-10-28 09:40:53,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:53,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,456 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,485 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:53,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:53,486 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2021-10-28 09:40:53,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:53,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628454547] [2021-10-28 09:40:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:53,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,492 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:53,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2021-10-28 09:40:53,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:53,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498727067] [2021-10-28 09:40:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:53,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,528 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:53,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:56,109 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:40:56,110 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:40:56,110 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:40:56,110 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:40:56,110 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:40:56,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:56,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:40:56,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:40:56,110 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2021-10-28 09:40:56,110 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:40:56,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:40:56,115 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 09:40:56,127 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 09:40:56,130 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 09:40:56,132 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 09:40:56,134 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 09:40:56,136 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 09:40:56,138 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 09:40:56,732 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 09:40:56,735 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 09:40:56,737 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 09:40:56,739 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 09:40:56,742 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 09:40:56,744 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 09:40:56,746 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 09:40:56,748 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 09:40:56,751 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 09:40:56,753 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 09:40:56,755 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 09:40:56,757 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 09:40:56,759 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 09:40:56,761 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 09:40:57,253 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:40:57,253 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:40:57,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,258 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,261 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 09:40:57,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:40:57,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:57,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:57,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:57,270 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:57,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,294 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,306 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 09:40:57,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:40:57,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,314 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,314 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 09:40:57,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,337 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:40:57,339 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 09:40:57,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:57,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:57,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:57,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:57,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,369 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:40:57,377 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 09:40:57,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:57,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:57,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:57,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:40:57,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,420 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,421 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 09:40:57,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:40:57,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:57,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:57,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:57,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 09:40:57,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,450 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:40:57,452 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 09:40:57,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:40:57,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:40:57,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:40:57,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 09:40:57,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,481 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:40:57,483 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 09:40:57,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 09:40:57,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,519 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:40:57,520 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 09:40:57,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:57,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,583 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:40:57,585 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 09:40:57,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:57,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,664 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,666 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 09:40:57,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:40:57,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 09:40:57,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,720 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:40:57,721 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 09:40:57,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,731 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 09:40:57,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,768 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:40:57,769 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 09:40:57,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:57,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,801 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,803 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 09:40:57,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:40:57,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:57,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,835 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,840 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 09:40:57,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:40:57,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 09:40:57,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,875 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:40:57,877 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 09:40:57,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:40:57,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:57,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,914 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:40:57,916 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 09:40:57,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:40:57,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:40:57,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:40:57,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:40:57,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:40:57,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:40:57,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:40:57,964 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 09:40:57,964 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 09:40:57,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:40:57,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,965 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:40:57,967 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:40:57,978 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:40:57,979 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:40:57,979 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3 - 1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3 Supporting invariants [] [2021-10-28 09:40:57,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 09:40:58,098 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2021-10-28 09:40:58,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:58,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:40:58,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:58,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:40:58,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:58,229 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-28 09:40:58,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2021-10-28 09:40:58,254 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 09:40:58,254 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:40:58,254 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 09:40:58,270 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 30 states and 35 transitions. Complement of second has 7 states. [2021-10-28 09:40:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:40:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 09:40:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-28 09:40:58,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 09:40:58,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:58,272 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:40:58,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:58,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:40:58,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:58,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:40:58,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:58,402 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-28 09:40:58,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2021-10-28 09:40:58,431 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 09:40:58,431 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:40:58,432 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 09:40:58,461 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Result 51 states and 59 transitions. Complement of second has 9 states. [2021-10-28 09:40:58,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 09:40:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 09:40:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-10-28 09:40:58,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 09:40:58,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:58,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-28 09:40:58,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:58,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-28 09:40:58,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:40:58,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2021-10-28 09:40:58,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:58,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2021-10-28 09:40:58,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 09:40:58,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 09:40:58,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2021-10-28 09:40:58,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:40:58,466 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 09:40:58,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2021-10-28 09:40:58,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-10-28 09:40:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 34 states have internal predecessors, (41), 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 09:40:58,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-10-28 09:40:58,470 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-28 09:40:58,470 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-28 09:40:58,470 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:40:58,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2021-10-28 09:40:58,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:40:58,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:40:58,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:40:58,472 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:58,473 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:40:58,473 INFO L791 eck$LassoCheckResult]: Stem: 1069#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1070#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 1065#L569 goto; 1066#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1080#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1073#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1074#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1082#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1083#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 1096#L564 goto; 1094#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1077#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1078#L566 assume 0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2);havoc f_#t~mem14; 1088#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1090#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1087#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 1086#L569 goto; 1072#L560 [2021-10-28 09:40:58,473 INFO L793 eck$LassoCheckResult]: Loop: 1072#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1079#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1071#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1072#L560 [2021-10-28 09:40:58,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2021-10-28 09:40:58,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:58,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661642886] [2021-10-28 09:40:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:58,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:40:58,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:40:58,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661642886] [2021-10-28 09:40:58,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661642886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:40:58,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938398118] [2021-10-28 09:40:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:58,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:40:58,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:58,570 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:40:58,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 09:40:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:58,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:40:58,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:58,747 INFO L354 Elim1Store]: treesize reduction 132, result has 30.9 percent of original size [2021-10-28 09:40:58,748 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 3 case distinctions, treesize of input 123 treesize of output 66 [2021-10-28 09:40:58,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-10-28 09:40:58,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-28 09:40:58,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:58,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-28 09:40:59,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-28 09:40:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:59,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938398118] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:40:59,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:40:59,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 09:40:59,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074049164] [2021-10-28 09:40:59,053 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:40:59,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:59,054 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 5 times [2021-10-28 09:40:59,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:59,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696189432] [2021-10-28 09:40:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:59,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:59,063 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:40:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:40:59,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:40:59,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:40:59,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:40:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:40:59,151 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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 09:40:59,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:59,270 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2021-10-28 09:40:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:40:59,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 57 transitions. [2021-10-28 09:40:59,271 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:40:59,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 0 states and 0 transitions. [2021-10-28 09:40:59,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:40:59,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:40:59,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:40:59,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:40:59,272 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:40:59,272 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:40:59,272 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:40:59,272 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:40:59,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:40:59,272 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:40:59,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:40:59,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:40:59 BoogieIcfgContainer [2021-10-28 09:40:59,277 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:40:59,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:40:59,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:40:59,278 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:40:59,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:43" (3/4) ... [2021-10-28 09:40:59,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:40:59,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:40:59,283 INFO L168 Benchmark]: Toolchain (without parser) took 16692.47 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 59.6 MB in the beginning and 85.0 MB in the end (delta: -25.4 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:59,283 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:59,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.80 ms. Allocated memory is still 102.8 MB. Free memory was 59.4 MB in the beginning and 71.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:59,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.87 ms. Allocated memory is still 102.8 MB. Free memory was 71.9 MB in the beginning and 69.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:59,285 INFO L168 Benchmark]: Boogie Preprocessor took 38.50 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 68.9 MB in the end (delta: 911.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:59,285 INFO L168 Benchmark]: RCFGBuilder took 440.47 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 57.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:59,286 INFO L168 Benchmark]: BuchiAutomizer took 15483.56 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 56.8 MB in the beginning and 85.0 MB in the end (delta: -28.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:59,286 INFO L168 Benchmark]: Witness Printer took 4.12 ms. Allocated memory is still 148.9 MB. Free memory is still 85.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:59,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 629.80 ms. Allocated memory is still 102.8 MB. Free memory was 59.4 MB in the beginning and 71.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.87 ms. Allocated memory is still 102.8 MB. Free memory was 71.9 MB in the beginning and 69.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.50 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 68.9 MB in the end (delta: 911.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 440.47 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 57.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 15483.56 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 56.8 MB in the beginning and 85.0 MB in the end (delta: -28.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.12 ms. Allocated memory is still 148.9 MB. Free memory is still 85.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[j][j] + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.4s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 14.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 6. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 78 SDtfs, 68 SDslu, 153 SDs, 0 SdLazy, 191 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital866 mio100 ax103 hnf100 lsp95 ukn41 mio100 lsp33 div106 bol100 ite100 ukn100 eq188 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 5 VariablesLoop: 6 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 09:40:59,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:59,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:59,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606cbd98-44a0-4787-9b84-0ff5db5efc36/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...