./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/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_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/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_11d551a8-75fa-4604-a58f-ddf63585a1c0/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 32b638142d47f07114d40dfbdfc741b7fdcb6c00b04416e88fb2c521a1626d73 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:48:11,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:48:11,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:48:11,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:48:11,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:48:11,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:48:11,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:48:11,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:48:11,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:48:11,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:48:11,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:48:11,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:48:11,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:48:11,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:48:11,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:48:11,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:48:11,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:48:11,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:48:11,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:48:11,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:48:11,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:48:11,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:48:11,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:48:11,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:48:11,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:48:11,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:48:11,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:48:11,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:48:11,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:48:11,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:48:11,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:48:11,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:48:11,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:48:11,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:48:11,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:48:11,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:48:11,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:48:11,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:48:11,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:48:11,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:48:11,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:48:11,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 08:48:11,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:48:11,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:48:11,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:48:11,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:48:11,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:48:11,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:48:11,661 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:48:11,661 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:48:11,662 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:48:11,662 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:48:11,663 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:48:11,663 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:48:11,664 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:48:11,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:48:11,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:48:11,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:48:11,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:48:11,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:48:11,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:48:11,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:48:11,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:48:11,671 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:48:11,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:48:11,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:48:11,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:48:11,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:48:11,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:48:11,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:48:11,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:48:11,677 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:48:11,679 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_11d551a8-75fa-4604-a58f-ddf63585a1c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32b638142d47f07114d40dfbdfc741b7fdcb6c00b04416e88fb2c521a1626d73 [2021-10-28 08:48:12,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:48:12,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:48:12,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:48:12,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:48:12,118 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:48:12,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i [2021-10-28 08:48:12,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/data/0b525b8e2/d289d639ff2b49cc8f3dfff183f64bd0/FLAG26aa64593 [2021-10-28 08:48:12,872 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:48:12,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/sv-benchmarks/c/termination-15/cstrncat_diffterm_alloca.i [2021-10-28 08:48:12,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/data/0b525b8e2/d289d639ff2b49cc8f3dfff183f64bd0/FLAG26aa64593 [2021-10-28 08:48:13,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/data/0b525b8e2/d289d639ff2b49cc8f3dfff183f64bd0 [2021-10-28 08:48:13,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:48:13,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:48:13,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:13,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:48:13,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:48:13,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1674398e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13, skipping insertion in model container [2021-10-28 08:48:13,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:48:13,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:48:13,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:13,760 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:48:13,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:13,894 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:48:13,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13 WrapperNode [2021-10-28 08:48:13,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:13,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:48:13,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:48:13,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:48:13,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:48:13,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:48:13,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:48:13,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:48:13,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:48:13,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:48:13,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:48:13,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:48:13,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (1/1) ... [2021-10-28 08:48:13,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:14,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:14,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:14,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:48:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:48:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:48:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:48:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:48:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:48:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:48:14,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:48:14,420 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 08:48:14,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:14 BoogieIcfgContainer [2021-10-28 08:48:14,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:48:14,424 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:48:14,424 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:48:14,441 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:48:14,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:48:14,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:48:13" (1/3) ... [2021-10-28 08:48:14,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e42a3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:48:14, skipping insertion in model container [2021-10-28 08:48:14,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:48:14,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:13" (2/3) ... [2021-10-28 08:48:14,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e42a3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:48:14, skipping insertion in model container [2021-10-28 08:48:14,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:48:14,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:14" (3/3) ... [2021-10-28 08:48:14,447 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrncat_diffterm_alloca.i [2021-10-28 08:48:14,520 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:48:14,521 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:48:14,521 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:48:14,521 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:48:14,521 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:48:14,521 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:48:14,522 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:48:14,522 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:48:14,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:14,581 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 08:48:14,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:48:14,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:48:14,589 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:48:14,589 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:48:14,589 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:48:14,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:14,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 08:48:14,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:48:14,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:48:14,593 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:48:14,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:48:14,602 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; 18#L381true assume !(main_~length1~0 < 1); 15#L381-2true assume !(main_~length2~0 < 1); 13#L384-1true assume !(main_~n~0 < 1); 17#L387-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 3#L367-3true [2021-10-28 08:48:14,603 INFO L793 eck$LassoCheckResult]: Loop: 3#L367-3true call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 16#L367-1true assume !!(49 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205;cstrncat_#t~post206.base, cstrncat_#t~post206.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post206.base, 1 + cstrncat_#t~post206.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset; 3#L367-3true [2021-10-28 08:48:14,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:14,618 INFO L85 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2021-10-28 08:48:14,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:14,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049289704] [2021-10-28 08:48:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:14,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:14,846 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:48:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:14,953 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:48:14,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:14,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2021-10-28 08:48:14,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:14,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483441753] [2021-10-28 08:48:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:14,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:14,979 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:48:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:14,990 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:48:15,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2021-10-28 08:48:15,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:15,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556306485] [2021-10-28 08:48:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:15,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:15,054 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:48:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:15,118 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:48:16,319 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:48:16,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:48:16,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:48:16,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:48:16,321 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:48:16,321 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:16,321 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:48:16,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:48:16,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat_diffterm_alloca.i_Iteration1_Lasso [2021-10-28 08:48:16,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:48:16,322 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:48:16,362 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 08:48:16,369 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 08:48:16,374 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 08:48:16,377 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 08:48:16,379 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 08:48:16,382 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 08:48:16,386 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 08:48:16,389 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 08:48:16,393 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 08:48:16,399 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 08:48:16,840 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 08:48:16,843 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 08:48:16,846 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 08:48:16,849 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 08:48:16,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:48:16,857 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 08:48:16,860 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 08:48:16,863 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 08:48:16,866 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 08:48:16,869 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 08:48:16,874 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 08:48:16,877 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 08:48:17,470 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:48:17,476 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:48:17,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:17,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:17,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:17,498 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 08:48:17,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:48:17,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:17,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:48:17,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:17,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:17,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:17,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:48:17,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:48:17,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:17,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 08:48:17,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:17,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:17,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:17,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:48:17,555 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 08:48:17,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:17,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:17,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:17,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:17,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:48:17,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:48:17,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:17,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:17,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:17,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:17,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:48:17,638 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 08:48:17,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:17,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:48:17,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:17,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:17,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:17,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:48:17,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:48:17,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:17,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:17,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:17,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:17,718 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:17,730 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 08:48:17,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:17,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:48:17,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:17,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:17,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:17,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:48:17,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:48:17,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:48:17,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:17,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:17,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:17,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:17,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:17,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:48:17,819 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 08:48:17,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:17,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:48:17,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:17,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:17,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:17,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:48:17,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:48:17,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:17,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 08:48:17,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:17,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:17,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:17,906 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 08:48:17,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:17,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:48:17,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:17,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:17,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:17,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:48:17,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:48:17,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:48:17,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:17,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:17,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:17,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:17,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:17,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:48:17,964 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 08:48:17,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:17,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:48:17,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:17,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:17,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:17,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:48:17,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:48:18,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:18,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:18,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:18,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:18,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:18,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:48:18,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:18,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:48:18,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:18,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:18,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:18,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:48:18,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:48:18,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:48:18,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:18,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:18,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:18,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:18,140 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:18,146 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 08:48:18,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:18,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:18,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:18,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:18,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:48:18,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:48:18,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:48:18,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:48:18,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:18,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:18,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:18,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:18,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:48:18,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:48:18,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:48:18,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:48:18,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:48:18,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:48:18,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:48:18,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:48:18,325 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:48:18,466 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2021-10-28 08:48:18,466 INFO L444 ModelExtractionUtils]: 15 out of 55 variables were initially zero. Simplification set additionally 35 variables to zero. [2021-10-28 08:48:18,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:48:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:18,474 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:18,480 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:48:18,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:48:18,518 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 08:48:18,519 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:48:18,519 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_cstrncat_~s~0.offset) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrncat_~s~0.base)_1 + 1*ULTIMATE.start_main_~length1~0 >= 0] [2021-10-28 08:48:18,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:18,627 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-10-28 08:48:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:18,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:48:18,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:18,773 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:48:18,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:18,804 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 08:48:18,822 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:48:18,824 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:18,955 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 53 states and 76 transitions. Complement of second has 7 states. [2021-10-28 08:48:18,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:48:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:18,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2021-10-28 08:48:18,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 08:48:18,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:48:18,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 08:48:18,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:48:18,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 08:48:18,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:48:18,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 76 transitions. [2021-10-28 08:48:18,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:48:18,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 20 states and 27 transitions. [2021-10-28 08:48:18,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 08:48:18,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 08:48:18,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-10-28 08:48:18,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:48:18,980 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-28 08:48:18,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-10-28 08:48:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-10-28 08:48:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-10-28 08:48:19,012 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-28 08:48:19,012 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-28 08:48:19,012 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:48:19,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2021-10-28 08:48:19,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:48:19,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:48:19,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:48:19,015 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:19,015 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:48:19,015 INFO L791 eck$LassoCheckResult]: Stem: 177#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 178#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218.base, main_#t~ret218.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214;main_~n~0 := main_#t~nondet215;havoc main_#t~nondet215; 183#L381 assume !(main_~length1~0 < 1); 182#L381-2 assume !(main_~length2~0 < 1); 180#L384-1 assume !(main_~n~0 < 1); 181#L387-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post206.base, cstrncat_#t~post206.offset, cstrncat_#t~mem205, cstrncat_#t~post210, cstrncat_#t~post211.base, cstrncat_#t~post211.offset, cstrncat_#t~post207.base, cstrncat_#t~post207.offset, cstrncat_#t~mem208, cstrncat_#t~short209, cstrncat_#t~mem212, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 171#L367-3 call cstrncat_#t~mem205 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 172#L367-1 assume !(49 != cstrncat_#t~mem205);havoc cstrncat_#t~mem205; 169#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 170#L369 assume !cstrncat_#t~short209; 179#L369-2 assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~mem208;havoc cstrncat_#t~short209;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; 184#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 168#L369 [2021-10-28 08:48:19,015 INFO L793 eck$LassoCheckResult]: Loop: 168#L369 assume !cstrncat_#t~short209; 174#L369-2 assume !!cstrncat_#t~short209;havoc cstrncat_#t~post207.base, cstrncat_#t~post207.offset;havoc cstrncat_#t~mem208;havoc cstrncat_#t~short209;cstrncat_#t~post210 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post210 - 1;havoc cstrncat_#t~post210;cstrncat_#t~post211.base, cstrncat_#t~post211.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post211.base, 1 + cstrncat_#t~post211.offset;havoc cstrncat_#t~post211.base, cstrncat_#t~post211.offset; 167#L369-4 cstrncat_#t~short209 := 0 != cstrncat_~n; 168#L369 [2021-10-28 08:48:19,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:19,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1662025132, now seen corresponding path program 1 times [2021-10-28 08:48:19,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:19,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644451182] [2021-10-28 08:48:19,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:19,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:19,081 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 08:48:19,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:19,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644451182] [2021-10-28 08:48:19,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644451182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:19,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:19,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:48:19,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445321424] [2021-10-28 08:48:19,087 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:48:19,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:19,088 INFO L85 PathProgramCache]: Analyzing trace with hash 76643, now seen corresponding path program 1 times [2021-10-28 08:48:19,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:19,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919099999] [2021-10-28 08:48:19,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:19,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:19,113 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 08:48:19,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:19,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919099999] [2021-10-28 08:48:19,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919099999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:19,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:19,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:48:19,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120780452] [2021-10-28 08:48:19,116 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:48:19,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:19,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:48:19,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:48:19,121 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:19,141 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-10-28 08:48:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:48:19,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-10-28 08:48:19,144 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:48:19,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-10-28 08:48:19,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:48:19,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:48:19,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:48:19,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:48:19,144 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:48:19,145 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:48:19,145 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:48:19,145 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:48:19,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:48:19,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:48:19,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:48:19,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:48:19 BoogieIcfgContainer [2021-10-28 08:48:19,152 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:48:19,152 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:48:19,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:48:19,153 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:48:19,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:14" (3/4) ... [2021-10-28 08:48:19,157 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:48:19,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:48:19,158 INFO L168 Benchmark]: Toolchain (without parser) took 6022.60 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 59.8 MB in the beginning and 56.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,159 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 51.2 MB in the beginning and 51.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:19,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.29 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 59.7 MB in the beginning and 81.1 MB in the end (delta: -21.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.25 ms. Allocated memory is still 113.2 MB. Free memory was 81.1 MB in the beginning and 79.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:19,162 INFO L168 Benchmark]: Boogie Preprocessor took 32.14 ms. Allocated memory is still 113.2 MB. Free memory was 79.5 MB in the beginning and 77.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,163 INFO L168 Benchmark]: RCFGBuilder took 436.67 ms. Allocated memory is still 113.2 MB. Free memory was 77.9 MB in the beginning and 67.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,163 INFO L168 Benchmark]: BuchiAutomizer took 4727.82 ms. Allocated memory is still 113.2 MB. Free memory was 66.4 MB in the beginning and 56.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,164 INFO L168 Benchmark]: Witness Printer took 4.27 ms. Allocated memory is still 113.2 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:19,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 51.2 MB in the beginning and 51.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 749.29 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 59.7 MB in the beginning and 81.1 MB in the end (delta: -21.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.25 ms. Allocated memory is still 113.2 MB. Free memory was 81.1 MB in the beginning and 79.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.14 ms. Allocated memory is still 113.2 MB. Free memory was 79.5 MB in the beginning and 77.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 436.67 ms. Allocated memory is still 113.2 MB. Free memory was 77.9 MB in the beginning and 67.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4727.82 ms. Allocated memory is still 113.2 MB. Free memory was 66.4 MB in the beginning and 56.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.27 ms. Allocated memory is still 113.2 MB. Free memory is still 56.0 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * s and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 26 SDslu, 23 SDs, 0 SdLazy, 16 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital197 mio100 ax100 hnf100 lsp96 ukn76 mio100 lsp52 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:48:19,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:19,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d551a8-75fa-4604-a58f-ddf63585a1c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...