./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3 --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 14310793a2daa3bf62d53b5cef67b6406903d242 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:51:10,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:51:10,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:51:10,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:51:10,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:51:10,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:51:10,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:51:10,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:51:10,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:51:10,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:51:10,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:51:10,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:51:10,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:51:10,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:51:10,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:51:10,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:51:10,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:51:10,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:51:10,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:51:10,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:51:10,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:51:10,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:51:10,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:51:10,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:51:10,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:51:10,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:51:10,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:51:10,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:51:10,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:51:10,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:51:10,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:51:10,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:51:10,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:51:10,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:51:10,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:51:10,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:51:10,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:51:10,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:51:10,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:51:10,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:51:10,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:51:10,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 19:51:10,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:51:10,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:51:10,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:51:10,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:51:10,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:51:10,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:51:10,860 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:51:10,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:51:10,861 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:51:10,861 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:51:10,862 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:51:10,862 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:51:10,863 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:51:10,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:51:10,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:51:10,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:51:10,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:51:10,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:51:10,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:51:10,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:51:10,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:51:10,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:51:10,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:51:10,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:51:10,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:51:10,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:51:10,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:51:10,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:51:10,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:51:10,870 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:51:10,870 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_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14310793a2daa3bf62d53b5cef67b6406903d242 [2021-10-15 19:51:11,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:51:11,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:51:11,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:51:11,167 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:51:11,168 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:51:11,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2021-10-15 19:51:11,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/data/2a133a3e9/5114da1bd9dc4af7aa635381a1a2b851/FLAGba3d5f6aa [2021-10-15 19:51:11,900 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:51:11,900 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2021-10-15 19:51:11,916 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/data/2a133a3e9/5114da1bd9dc4af7aa635381a1a2b851/FLAGba3d5f6aa [2021-10-15 19:51:12,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/data/2a133a3e9/5114da1bd9dc4af7aa635381a1a2b851 [2021-10-15 19:51:12,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:51:12,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:51:12,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:51:12,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:51:12,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:51:12,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c34950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12, skipping insertion in model container [2021-10-15 19:51:12,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:51:12,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:51:12,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:51:12,544 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:51:12,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:51:12,649 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:51:12,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12 WrapperNode [2021-10-15 19:51:12,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:51:12,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:51:12,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:51:12,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:51:12,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:51:12,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:51:12,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:51:12,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:51:12,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:51:12,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:51:12,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:51:12,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:51:12,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (1/1) ... [2021-10-15 19:51:12,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:12,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:12,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:12,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:51:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:51:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:51:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:51:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:51:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:51:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:51:13,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:51:13,176 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-15 19:51:13,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:51:13 BoogieIcfgContainer [2021-10-15 19:51:13,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:51:13,180 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:51:13,180 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:51:13,184 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:51:13,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:51:13,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:51:12" (1/3) ... [2021-10-15 19:51:13,192 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61269de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:51:13, skipping insertion in model container [2021-10-15 19:51:13,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:51:13,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:51:12" (2/3) ... [2021-10-15 19:51:13,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61269de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:51:13, skipping insertion in model container [2021-10-15 19:51:13,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:51:13,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:51:13" (3/3) ... [2021-10-15 19:51:13,195 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.14-alloca.i [2021-10-15 19:51:13,249 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:51:13,250 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:51:13,250 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:51:13,250 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:51:13,250 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:51:13,250 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:51:13,251 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:51:13,251 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:51:13,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:13,286 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-15 19:51:13,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:51:13,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:51:13,293 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:51:13,293 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-15 19:51:13,293 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:51:13,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:13,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-15 19:51:13,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:51:13,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:51:13,297 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:51:13,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-15 19:51:13,304 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 3#L556-4true [2021-10-15 19:51:13,305 INFO L793 eck$LassoCheckResult]: Loop: 3#L556-4true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 13#L555-1true assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 7#L555-3true assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 8#L556-3true assume !true; 3#L556-4true [2021-10-15 19:51:13,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:13,311 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-15 19:51:13,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:13,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413641749] [2021-10-15 19:51:13,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:13,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:13,484 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:13,564 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:13,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:13,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1142256, now seen corresponding path program 1 times [2021-10-15 19:51:13,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:13,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484268248] [2021-10-15 19:51:13,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:13,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:13,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:51:13,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:13,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484268248] [2021-10-15 19:51:13,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484268248] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:51:13,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:51:13,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-15 19:51:13,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920870952] [2021-10-15 19:51:13,630 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:51:13,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:13,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:51:13,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:51:13,649 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-10-15 19:51:13,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:51:13,655 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-10-15 19:51:13,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:51:13,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-10-15 19:51:13,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-15 19:51:13,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 7 states and 9 transitions. [2021-10-15 19:51:13,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-15 19:51:13,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-15 19:51:13,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-10-15 19:51:13,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:13,664 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-15 19:51:13,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-10-15 19:51:13,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-15 19:51:13,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2021-10-15 19:51:13,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-15 19:51:13,690 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-15 19:51:13,691 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-15 19:51:13,691 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:51:13,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-15 19:51:13,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-15 19:51:13,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:51:13,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:51:13,692 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:51:13,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-15 19:51:13,693 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 35#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 32#L556-4 [2021-10-15 19:51:13,693 INFO L793 eck$LassoCheckResult]: Loop: 32#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 33#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 36#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 37#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 38#L556-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 32#L556-4 [2021-10-15 19:51:13,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:13,694 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-10-15 19:51:13,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:13,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505029470] [2021-10-15 19:51:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:13,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:13,752 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:13,781 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:13,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:13,782 INFO L82 PathProgramCache]: Analyzing trace with hash 35409745, now seen corresponding path program 1 times [2021-10-15 19:51:13,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:13,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331030634] [2021-10-15 19:51:13,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:13,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:51:13,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:13,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331030634] [2021-10-15 19:51:13,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331030634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:51:13,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:51:13,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:51:13,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425644414] [2021-10-15 19:51:13,898 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:51:13,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:51:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:51:13,900 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 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) [2021-10-15 19:51:14,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:51:14,012 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2021-10-15 19:51:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:51:14,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2021-10-15 19:51:14,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-15 19:51:14,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 11 transitions. [2021-10-15 19:51:14,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-15 19:51:14,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-15 19:51:14,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-10-15 19:51:14,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:14,016 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-15 19:51:14,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-10-15 19:51:14,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-15 19:51:14,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2021-10-15 19:51:14,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-10-15 19:51:14,019 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-15 19:51:14,019 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-15 19:51:14,019 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 19:51:14,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2021-10-15 19:51:14,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-15 19:51:14,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:51:14,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:51:14,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:51:14,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2021-10-15 19:51:14,021 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 66#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 63#L556-4 [2021-10-15 19:51:14,021 INFO L793 eck$LassoCheckResult]: Loop: 63#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 64#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 67#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 68#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 69#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 70#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 71#L556-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 63#L556-4 [2021-10-15 19:51:14,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:14,022 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-10-15 19:51:14,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:14,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634047848] [2021-10-15 19:51:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:14,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:14,053 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:14,099 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:14,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:14,100 INFO L82 PathProgramCache]: Analyzing trace with hash -330970762, now seen corresponding path program 1 times [2021-10-15 19:51:14,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:14,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993344490] [2021-10-15 19:51:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:14,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:14,132 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:14,175 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:14,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1215326068, now seen corresponding path program 1 times [2021-10-15 19:51:14,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:14,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367944117] [2021-10-15 19:51:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:14,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:14,235 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:14,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:15,561 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:51:15,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:51:15,562 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:51:15,562 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:51:15,562 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:51:15,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:15,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:51:15,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:51:15,563 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14-alloca.i_Iteration3_Lasso [2021-10-15 19:51:15,563 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:51:15,563 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:51:15,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:15,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:16,660 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:51:16,665 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:51:16,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:16,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:16,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:16,675 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 [2021-10-15 19:51:16,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:16,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:16,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:16,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:16,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:16,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:16,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:16,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:51:16,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:16,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:16,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:16,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:16,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:16,768 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 [2021-10-15 19:51:16,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:16,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:16,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:16,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:16,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:16,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:16,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:16,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:51:16,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:16,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:16,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:16,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:16,832 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:16,840 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 [2021-10-15 19:51:16,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:16,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:16,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:16,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:16,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:16,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:16,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:16,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:51:16,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:16,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:16,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:16,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:16,899 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:16,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:51:16,904 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 [2021-10-15 19:51:16,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:16,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:16,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:16,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:16,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:16,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:16,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:16,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:16,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:16,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:16,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:16,965 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:16,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:51:16,968 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 [2021-10-15 19:51:16,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:16,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:16,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:16,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:16,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:16,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:16,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:16,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:16,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:16,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:16,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:17,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:17,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:51:17,001 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 [2021-10-15 19:51:17,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:17,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:17,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:17,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:17,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:17,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:17,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:17,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:17,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:17,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:17,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:17,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:51:17,082 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 [2021-10-15 19:51:17,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:17,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:17,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:17,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:17,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:17,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:17,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:17,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:17,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:17,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:17,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:17,136 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:17,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:51:17,141 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 [2021-10-15 19:51:17,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:17,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:17,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:17,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:17,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:17,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:17,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:17,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:17,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-15 19:51:17,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:17,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:17,185 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:17,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 19:51:17,187 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 [2021-10-15 19:51:17,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:17,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:17,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:17,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:17,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:17,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:17,236 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:51:17,289 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-15 19:51:17,289 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-15 19:51:17,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:17,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:17,324 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:17,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:51:17,396 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:51:17,427 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 19:51:17,428 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:51:17,428 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 Supporting invariants [] [2021-10-15 19:51:17,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:17,580 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2021-10-15 19:51:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:17,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:51:17,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:17,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:17,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:51:17,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:17,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:18,097 INFO L354 Elim1Store]: treesize reduction 170, result has 43.9 percent of original size [2021-10-15 19:51:18,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 471 treesize of output 239 [2021-10-15 19:51:18,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 35 treesize of output 27 [2021-10-15 19:51:18,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-15 19:51:18,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-10-15 19:51:18,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 15 [2021-10-15 19:51:18,497 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-15 19:51:18,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 38 [2021-10-15 19:51:18,632 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-15 19:51:18,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 58 [2021-10-15 19:51:18,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2021-10-15 19:51:19,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 82 treesize of output 66 [2021-10-15 19:51:19,465 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-15 19:51:19,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 60 [2021-10-15 19:51:19,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 47 treesize of output 31 [2021-10-15 19:51:19,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 43 treesize of output 27 [2021-10-15 19:51:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:51:19,624 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-15 19:51:19,625 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2021-10-15 19:51:19,718 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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 8 states. [2021-10-15 19:51:19,719 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 [2021-10-15 19:51:19,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2021-10-15 19:51:19,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-15 19:51:19,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2021-10-15 19:51:19,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:51:19,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2021-10-15 19:51:19,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:51:19,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2021-10-15 19:51:19,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:51:19,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-10-15 19:51:19,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:51:19,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 14 states and 17 transitions. [2021-10-15 19:51:19,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-15 19:51:19,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-15 19:51:19,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2021-10-15 19:51:19,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:51:19,734 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-15 19:51:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2021-10-15 19:51:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-10-15 19:51:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-15 19:51:19,738 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-15 19:51:19,738 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-15 19:51:19,739 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 19:51:19,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2021-10-15 19:51:19,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:51:19,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:51:19,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:51:19,742 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-15 19:51:19,743 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:51:19,743 INFO L791 eck$LassoCheckResult]: Stem: 251#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 252#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 248#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 249#L555-1 assume !test_fun_#t~short8; 253#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 254#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 257#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 258#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 256#L556-1 [2021-10-15 19:51:19,743 INFO L793 eck$LassoCheckResult]: Loop: 256#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 255#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 256#L556-1 [2021-10-15 19:51:19,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:19,744 INFO L82 PathProgramCache]: Analyzing trace with hash 179598440, now seen corresponding path program 1 times [2021-10-15 19:51:19,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:19,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053544968] [2021-10-15 19:51:19,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:19,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:51:19,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:19,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053544968] [2021-10-15 19:51:19,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053544968] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:51:19,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:51:19,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:51:19,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275071576] [2021-10-15 19:51:19,810 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 19:51:19,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:19,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1852, now seen corresponding path program 1 times [2021-10-15 19:51:19,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:19,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100055455] [2021-10-15 19:51:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:19,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:19,833 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:19,841 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:20,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:20,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:51:20,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:51:20,001 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:20,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:51:20,011 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-10-15 19:51:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:51:20,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2021-10-15 19:51:20,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:51:20,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 15 transitions. [2021-10-15 19:51:20,013 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-15 19:51:20,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-15 19:51:20,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2021-10-15 19:51:20,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:51:20,013 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-15 19:51:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2021-10-15 19:51:20,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-15 19:51:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 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) [2021-10-15 19:51:20,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-10-15 19:51:20,015 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-15 19:51:20,015 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-15 19:51:20,015 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 19:51:20,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2021-10-15 19:51:20,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:51:20,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:51:20,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:51:20,020 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-15 19:51:20,020 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:51:20,020 INFO L791 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 285#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 281#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 282#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 286#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 287#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 290#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 291#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 289#L556-1 [2021-10-15 19:51:20,020 INFO L793 eck$LassoCheckResult]: Loop: 289#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 288#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 289#L556-1 [2021-10-15 19:51:20,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:20,022 INFO L82 PathProgramCache]: Analyzing trace with hash 177751398, now seen corresponding path program 1 times [2021-10-15 19:51:20,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:20,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814795112] [2021-10-15 19:51:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:20,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:20,052 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:20,084 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:20,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:20,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1852, now seen corresponding path program 2 times [2021-10-15 19:51:20,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:20,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772389741] [2021-10-15 19:51:20,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:20,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:20,090 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:20,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:20,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:20,110 INFO L82 PathProgramCache]: Analyzing trace with hash -979597471, now seen corresponding path program 2 times [2021-10-15 19:51:20,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:20,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318002356] [2021-10-15 19:51:20,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:20,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:20,140 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:20,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:21,959 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:51:21,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:51:21,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:51:21,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:51:21,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:51:21,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:21,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:51:21,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:51:21,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14-alloca.i_Iteration5_Lasso [2021-10-15 19:51:21,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:51:21,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:51:21,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:21,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:22,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:22,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:22,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:22,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:51:22,911 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:51:22,912 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:51:22,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:22,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:22,924 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:22,929 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 [2021-10-15 19:51:22,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:22,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:22,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:22,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:22,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:22,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:22,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:22,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 19:51:22,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:22,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:22,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:22,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:22,985 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:22,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 19:51:22,991 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 [2021-10-15 19:51:22,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:22,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:22,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:22,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:23,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:23,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,059 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 19:51:23,060 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 [2021-10-15 19:51:23,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:23,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:23,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:23,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,090 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 19:51:23,104 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 [2021-10-15 19:51:23,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:23,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:23,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,142 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 19:51:23,143 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 [2021-10-15 19:51:23,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:23,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:23,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:23,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,173 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 19:51:23,174 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 [2021-10-15 19:51:23,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:23,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:23,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:23,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,204 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 19:51:23,208 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 [2021-10-15 19:51:23,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:23,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:23,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:23,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,242 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,243 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 [2021-10-15 19:51:23,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 19:51:23,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:23,253 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:23,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,316 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 19:51:23,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:51:23,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:23,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:23,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:23,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,381 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 19:51:23,384 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 [2021-10-15 19:51:23,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:23,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:23,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,416 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 19:51:23,420 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 [2021-10-15 19:51:23,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:23,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:23,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:23,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,450 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 19:51:23,451 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 [2021-10-15 19:51:23,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:51:23,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:51:23,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:51:23,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,497 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 19:51:23,498 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 [2021-10-15 19:51:23,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:23,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:23,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,559 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 19:51:23,561 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 [2021-10-15 19:51:23,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:23,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:23,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:51:23,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-15 19:51:23,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,611 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-15 19:51:23,613 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 [2021-10-15 19:51:23,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:51:23,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:51:23,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:51:23,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:51:23,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:51:23,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:51:23,638 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:51:23,657 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-15 19:51:23,657 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-10-15 19:51:23,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:51:23,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:23,669 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:51:23,670 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:51:23,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-15 19:51:23,681 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-15 19:51:23,681 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:51:23,681 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_#t~mem9) = 1*ULTIMATE.start_test_fun_#t~mem9 Supporting invariants [-1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_2 + 1*ULTIMATE.start_test_fun_#t~mem9 >= 0] [2021-10-15 19:51:23,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:23,791 INFO L297 tatePredicateManager]: 23 out of 25 supporting invariants were superfluous and have been removed [2021-10-15 19:51:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:23,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-15 19:51:23,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:23,906 INFO L354 Elim1Store]: treesize reduction 51, result has 40.0 percent of original size [2021-10-15 19:51:23,907 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 2 case distinctions, treesize of input 59 treesize of output 41 [2021-10-15 19:51:24,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:24,085 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-15 19:51:24,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 54 [2021-10-15 19:51:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:24,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:51:24,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:24,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:24,359 INFO L354 Elim1Store]: treesize reduction 194, result has 32.9 percent of original size [2021-10-15 19:51:24,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 462 treesize of output 232 [2021-10-15 19:51:24,468 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-15 19:51:24,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 29 [2021-10-15 19:51:24,539 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-10-15 19:51:24,566 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-15 19:51:24,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 50 [2021-10-15 19:51:24,729 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-15 19:51:24,772 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-15 19:51:24,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 26 [2021-10-15 19:51:24,864 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-15 19:51:24,903 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-15 19:51:24,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 26 [2021-10-15 19:51:24,988 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-15 19:51:25,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2021-10-15 19:51:25,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-10-15 19:51:25,870 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-15 19:51:25,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 162 treesize of output 150 [2021-10-15 19:51:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:51:25,971 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-10-15 19:51:25,972 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:26,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 31 transitions. Complement of second has 7 states. [2021-10-15 19:51:26,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 19:51:26,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:26,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2021-10-15 19:51:26,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-15 19:51:26,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:51:26,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-15 19:51:26,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:51:26,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-15 19:51:26,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:51:26,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2021-10-15 19:51:26,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:51:26,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 23 transitions. [2021-10-15 19:51:26,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-15 19:51:26,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-15 19:51:26,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2021-10-15 19:51:26,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:51:26,089 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-15 19:51:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2021-10-15 19:51:26,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2021-10-15 19:51:26,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 16 states have internal predecessors, (19), 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) [2021-10-15 19:51:26,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-15 19:51:26,091 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-15 19:51:26,092 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-15 19:51:26,092 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-15 19:51:26,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2021-10-15 19:51:26,092 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:51:26,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:51:26,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:51:26,093 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 1, 1, 1] [2021-10-15 19:51:26,093 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:51:26,093 INFO L791 eck$LassoCheckResult]: Stem: 490#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 491#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 486#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 487#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 502#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 501#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 498#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 496#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 497#L556-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 488#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 489#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 492#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 493#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 500#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 499#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 495#L556-1 [2021-10-15 19:51:26,093 INFO L793 eck$LassoCheckResult]: Loop: 495#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 494#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 495#L556-1 [2021-10-15 19:51:26,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:26,094 INFO L82 PathProgramCache]: Analyzing trace with hash -618569641, now seen corresponding path program 2 times [2021-10-15 19:51:26,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:26,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586919222] [2021-10-15 19:51:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:26,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:26,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:51:26,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:26,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586919222] [2021-10-15 19:51:26,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586919222] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:26,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211211123] [2021-10-15 19:51:26,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 19:51:26,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:51:26,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:26,149 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:51:26,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-15 19:51:26,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 19:51:26,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:51:26,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-15 19:51:26,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:26,376 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-15 19:51:26,377 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 38 treesize of output 34 [2021-10-15 19:51:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-15 19:51:26,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211211123] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:51:26,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-15 19:51:26,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2021-10-15 19:51:26,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208885890] [2021-10-15 19:51:26,414 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 19:51:26,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:26,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1852, now seen corresponding path program 3 times [2021-10-15 19:51:26,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:26,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964195739] [2021-10-15 19:51:26,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:26,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:26,424 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:51:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:51:26,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:51:26,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:26,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:51:26,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-15 19:51:26,556 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-15 19:51:26,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:51:26,629 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-10-15 19:51:26,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:51:26,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2021-10-15 19:51:26,629 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:51:26,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-10-15 19:51:26,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:51:26,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:51:26,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:51:26,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:26,630 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:51:26,630 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:51:26,630 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:51:26,630 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-15 19:51:26,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:51:26,630 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:51:26,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:51:26,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:51:26 BoogieIcfgContainer [2021-10-15 19:51:26,635 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:51:26,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:51:26,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:51:26,636 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:51:26,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:51:13" (3/4) ... [2021-10-15 19:51:26,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:51:26,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:51:26,640 INFO L168 Benchmark]: Toolchain (without parser) took 14457.50 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 71.1 MB in the beginning and 79.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:26,641 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 107.0 MB. Free memory was 79.6 MB in the beginning and 79.5 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:51:26,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.55 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 77.2 MB in the end (delta: -6.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:26,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.55 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 75.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:26,642 INFO L168 Benchmark]: Boogie Preprocessor took 30.94 ms. Allocated memory is still 107.0 MB. Free memory was 75.6 MB in the beginning and 74.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:51:26,642 INFO L168 Benchmark]: RCFGBuilder took 440.23 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 63.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:26,643 INFO L168 Benchmark]: BuchiAutomizer took 13455.59 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.1 MB in the beginning and 80.1 MB in the end (delta: -17.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:26,643 INFO L168 Benchmark]: Witness Printer took 3.80 ms. Allocated memory is still 130.0 MB. Free memory was 80.1 MB in the beginning and 79.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:26,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 107.0 MB. Free memory was 79.6 MB in the beginning and 79.5 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 465.55 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 77.2 MB in the end (delta: -6.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.55 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 75.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.94 ms. Allocated memory is still 107.0 MB. Free memory was 75.6 MB in the beginning and 74.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 440.23 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 63.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13455.59 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.1 MB in the beginning and 80.1 MB in the end (delta: -17.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.80 ms. Allocated memory is still 130.0 MB. Free memory was 80.1 MB in the beginning and 79.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (4 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 5 locations. One deterministic module has affine ranking function org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@2cdfd550 and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.4s and 7 iterations. TraceHistogramMax:4. Analysis of lassos took 8.6s. Construction of modules took 0.1s. Büchi inclusion checks took 4.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 21.3ms AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 39 SDtfs, 15 SDslu, 27 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital1358 mio100 ax102 hnf100 lsp96 ukn25 mio100 lsp36 div100 bol100 ite100 ukn100 eq187 hnf88 smp98 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:51:26,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:26,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e02ca0-0485-4029-8a44-230307cd1dae/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...