./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be --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 07aee1a213388f511be96198bfb1df3a8f6aa54d1d332dfab8fc2fdcd2220999 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:16:47,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:16:47,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:16:47,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:16:47,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:16:47,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:16:47,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:16:47,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:16:47,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:16:47,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:16:47,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:16:47,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:16:47,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:16:47,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:16:47,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:16:47,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:16:47,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:16:47,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:16:47,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:16:47,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:16:47,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:16:47,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:16:47,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:16:47,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:16:47,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:16:47,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:16:47,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:16:47,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:16:47,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:16:47,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:16:47,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:16:47,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:16:47,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:16:47,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:16:47,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:16:47,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:16:47,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:16:47,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:16:47,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:16:47,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:16:47,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:16:47,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:16:47,205 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:16:47,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:16:47,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:16:47,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:16:47,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:16:47,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:16:47,208 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:16:47,208 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:16:47,209 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:16:47,209 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:16:47,210 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:16:47,210 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:16:47,211 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:16:47,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:16:47,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:16:47,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:16:47,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:16:47,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:16:47,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:16:47,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:16:47,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:16:47,213 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:16:47,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:16:47,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:16:47,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:16:47,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:16:47,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:16:47,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:16:47,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:16:47,216 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:16:47,217 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_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07aee1a213388f511be96198bfb1df3a8f6aa54d1d332dfab8fc2fdcd2220999 [2021-10-21 19:16:47,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:16:47,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:16:47,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:16:47,579 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:16:47,580 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:16:47,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-21 19:16:47,659 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/data/ff0b792bd/a059fde5ac4d4707a3f156e5ed690730/FLAGc0f00a89c [2021-10-21 19:16:48,172 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:16:48,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-21 19:16:48,185 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/data/ff0b792bd/a059fde5ac4d4707a3f156e5ed690730/FLAGc0f00a89c [2021-10-21 19:16:48,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/data/ff0b792bd/a059fde5ac4d4707a3f156e5ed690730 [2021-10-21 19:16:48,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:16:48,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:16:48,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:16:48,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:16:48,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:16:48,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9ab793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48, skipping insertion in model container [2021-10-21 19:16:48,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:16:48,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:16:48,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:16:48,775 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:16:48,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:16:48,809 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:16:48,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48 WrapperNode [2021-10-21 19:16:48,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:16:48,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:16:48,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:16:48,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:16:48,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:16:48,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:16:48,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:16:48,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:16:48,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:16:48,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:16:48,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:16:48,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:16:48,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (1/1) ... [2021-10-21 19:16:48,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:48,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:48,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:48,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:16:48,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:16:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:16:49,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:16:49,167 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:16:49,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:16:49 BoogieIcfgContainer [2021-10-21 19:16:49,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:16:49,172 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:16:49,172 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:16:49,176 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:16:49,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:16:49,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:16:48" (1/3) ... [2021-10-21 19:16:49,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@404fda7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:16:49, skipping insertion in model container [2021-10-21 19:16:49,180 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:16:49,180 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:16:48" (2/3) ... [2021-10-21 19:16:49,181 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@404fda7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:16:49, skipping insertion in model container [2021-10-21 19:16:49,181 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:16:49,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:16:49" (3/3) ... [2021-10-21 19:16:49,183 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-21 19:16:49,269 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:16:49,283 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:16:49,283 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:16:49,283 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:16:49,283 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:16:49,284 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:16:49,284 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:16:49,284 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:16:49,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-10-21 19:16:49,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:16:49,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:16:49,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:16:49,325 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:16:49,325 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:16:49,325 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:16:49,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-10-21 19:16:49,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:16:49,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:16:49,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:16:49,328 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:16:49,328 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:16:49,335 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 7#L20-2true [2021-10-21 19:16:49,335 INFO L793 eck$LassoCheckResult]: Loop: 7#L20-2true assume !!(main_~i~0 > 0); 9#L20true assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 7#L20-2true [2021-10-21 19:16:49,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:49,342 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-21 19:16:49,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:49,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548258048] [2021-10-21 19:16:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:49,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:49,488 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:49,512 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:49,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:49,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-10-21 19:16:49,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:49,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635607696] [2021-10-21 19:16:49,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:49,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:49,548 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:49,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:49,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:49,570 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-10-21 19:16:49,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:49,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535080676] [2021-10-21 19:16:49,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:49,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:49,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:16:49,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535080676] [2021-10-21 19:16:49,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535080676] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:16:49,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:16:49,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:16:49,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159899589] [2021-10-21 19:16:49,830 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:49,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:49,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:49,832 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:49,832 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:16:49,832 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:49,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:49,833 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:49,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2021-10-21 19:16:49,833 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:49,833 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:49,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:49,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:49,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:49,986 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:49,986 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:16:49,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:49,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:49,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:49,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:16:49,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:49,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:50,026 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:16:50,026 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:16:50,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:50,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:50,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:50,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:50,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:50,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:16:50,105 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:16:50,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:16:50,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:50,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:50,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:50,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:50,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:50,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:16:50,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:50,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:50,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:50,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:16:50,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:50,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:16:50,303 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:16:50,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:50,315 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:50,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:50,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:50,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:50,316 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:16:50,316 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,316 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:50,316 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:50,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2021-10-21 19:16:50,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:50,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:50,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:50,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:50,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:50,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:50,433 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:16:50,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:50,438 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:50,445 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 [2021-10-21 19:16:50,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:50,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:50,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:50,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:50,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:16:50,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:16:50,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:16:50,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:50,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:50,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:50,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:50,541 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 [2021-10-21 19:16:50,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:50,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:50,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:50,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:50,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:16:50,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:16:50,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:16:50,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:50,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:50,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:50,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:50,635 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 [2021-10-21 19:16:50,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:50,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:16:50,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:50,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:50,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:50,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:16:50,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:16:50,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:16:50,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:16:50,668 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 19:16:50,668 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:16:50,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:50,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:50,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:50,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:16:50,677 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:16:50,678 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:16:50,678 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 19:16:50,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:16:50,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:50,721 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:16:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:50,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-21 19:16:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:50,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:16:50,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:50,868 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:16:50,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:50,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:50,910 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:16:50,912 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2021-10-21 19:16:50,958 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) Result 28 states and 35 transitions. Complement of second has 8 states. [2021-10-21 19:16:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:16:50,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2021-10-21 19:16:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-10-21 19:16:50,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 19:16:50,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:50,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 19:16:50,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:50,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 19:16:50,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:50,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-21 19:16:50,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:16:50,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-10-21 19:16:50,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-21 19:16:50,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 19:16:50,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-21 19:16:50,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:16:50,976 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-21 19:16:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-21 19:16:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-21 19:16:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2021-10-21 19:16:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-10-21 19:16:51,005 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-21 19:16:51,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:16:51,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:16:51,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:16:51,010 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2021-10-21 19:16:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:16:51,023 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2021-10-21 19:16:51,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:16:51,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2021-10-21 19:16:51,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:16:51,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2021-10-21 19:16:51,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 19:16:51,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 19:16:51,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-10-21 19:16:51,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:16:51,026 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-21 19:16:51,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-10-21 19:16:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-21 19:16:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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) [2021-10-21 19:16:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-10-21 19:16:51,028 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-21 19:16:51,028 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-21 19:16:51,029 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:16:51,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-10-21 19:16:51,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:16:51,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:16:51,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:16:51,030 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:16:51,030 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:16:51,031 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 92#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 93#L20-2 assume !!(main_~i~0 > 0); 97#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 95#L20-2 [2021-10-21 19:16:51,031 INFO L793 eck$LassoCheckResult]: Loop: 95#L20-2 assume !!(main_~i~0 > 0); 96#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 95#L20-2 [2021-10-21 19:16:51,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:51,032 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2021-10-21 19:16:51,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:51,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972304066] [2021-10-21 19:16:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:51,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,048 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,056 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:51,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:51,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2021-10-21 19:16:51,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:51,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53840601] [2021-10-21 19:16:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:51,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,062 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,076 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:51,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:51,079 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2021-10-21 19:16:51,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:51,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718843853] [2021-10-21 19:16:51,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:51,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,101 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,120 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:51,171 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:51,171 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:51,171 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:51,171 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:51,171 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:16:51,171 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:51,172 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:51,172 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2021-10-21 19:16:51,172 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:51,172 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:51,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:51,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:51,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:51,229 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:51,230 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:16:51,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,244 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:16:51,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:51,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:51,275 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:16:51,275 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:16:51,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:51,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,319 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:16:51,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:51,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:51,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:16:51,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:16:51,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:51,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,374 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:16:51,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:51,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:51,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:51,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:16:51,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:16:51,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:51,470 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:16:51,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:51,472 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:51,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:51,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:51,473 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:51,473 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:16:51,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:51,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:51,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2021-10-21 19:16:51,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:51,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:51,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:51,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:51,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:51,555 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:51,555 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:16:51,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,556 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:16:51,567 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 [2021-10-21 19:16:51,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:51,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:51,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:51,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:51,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:16:51,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:16:51,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:51,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:51,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,635 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,641 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 [2021-10-21 19:16:51,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:51,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:51,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:51,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:51,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:16:51,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:16:51,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:16:51,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:51,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:51,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,726 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,733 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 [2021-10-21 19:16:51,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:16:51,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:51,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:16:51,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:51,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:51,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:51,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:16:51,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:16:51,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:16:51,763 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:16:51,764 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:16:51,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:51,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:51,765 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:51,769 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:16:51,769 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:16:51,769 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:16:51,769 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 19:16:51,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:16:51,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:51,804 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:16:51,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:51,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:16:51,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:51,853 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:16:51,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:51,884 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:16:51,885 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:51,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 5 states. [2021-10-21 19:16:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:16:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:51,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:16:51,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 19:16:51,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:51,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-21 19:16:51,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:51,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-21 19:16:51,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:51,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2021-10-21 19:16:51,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:16:51,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2021-10-21 19:16:51,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:16:51,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-21 19:16:51,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-21 19:16:51,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:16:51,909 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 19:16:51,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-21 19:16:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-21 19:16:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-21 19:16:51,911 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 19:16:51,911 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 19:16:51,912 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:16:51,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-21 19:16:51,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:16:51,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:16:51,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:16:51,915 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2021-10-21 19:16:51,915 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:16:51,915 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 147#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 148#L20-2 assume !!(main_~i~0 > 0); 156#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 155#L20-2 assume !!(main_~i~0 > 0); 154#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 150#L20-2 [2021-10-21 19:16:51,915 INFO L793 eck$LassoCheckResult]: Loop: 150#L20-2 assume !!(main_~i~0 > 0); 151#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 150#L20-2 [2021-10-21 19:16:51,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:51,916 INFO L82 PathProgramCache]: Analyzing trace with hash 920231918, now seen corresponding path program 2 times [2021-10-21 19:16:51,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:51,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526078235] [2021-10-21 19:16:51,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:51,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,940 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:51,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2021-10-21 19:16:51,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:51,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291609412] [2021-10-21 19:16:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:51,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,959 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:51,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:51,965 INFO L82 PathProgramCache]: Analyzing trace with hash -420389359, now seen corresponding path program 2 times [2021-10-21 19:16:51,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:51,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748594535] [2021-10-21 19:16:51,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:51,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:51,992 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:52,001 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:52,022 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:52,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:52,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:52,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:52,022 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:16:52,023 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:52,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:52,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:52,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2021-10-21 19:16:52,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:52,023 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:52,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,073 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:52,073 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:16:52,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:52,074 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:52,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:16:52,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:52,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:52,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:52,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:52,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:52,138 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:52,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:16:52,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:16:52,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:52,211 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:16:52,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:52,218 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:52,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:52,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:52,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:52,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:16:52,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:52,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:52,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:52,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2021-10-21 19:16:52,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:52,219 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:52,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,322 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:52,322 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:16:52,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:52,333 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:52,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:52,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:16:52,348 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 [2021-10-21 19:16:52,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:52,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:16:52,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:52,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:52,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:52,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:16:52,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:16:52,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:16:52,387 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 19:16:52,388 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:16:52,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:52,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:52,391 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:52,397 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:16:52,397 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:16:52,397 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:16:52,398 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 19:16:52,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:16:52,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:52,438 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:16:52,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:52,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:16:52,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:52,501 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:16:52,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:52,521 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:16:52,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 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) [2021-10-21 19:16:52,533 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 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) Result 12 states and 17 transitions. Complement of second has 5 states. [2021-10-21 19:16:52,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:16:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:52,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:16:52,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-21 19:16:52,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:52,535 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:16:52,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:52,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:16:52,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:52,592 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:16:52,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:52,636 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:16:52,638 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 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) [2021-10-21 19:16:52,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 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) Result 12 states and 17 transitions. Complement of second has 5 states. [2021-10-21 19:16:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:16:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:52,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:16:52,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-21 19:16:52,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:52,656 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:16:52,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:52,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:16:52,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:52,700 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:16:52,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:52,736 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:16:52,737 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 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) [2021-10-21 19:16:52,758 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 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) Result 14 states and 20 transitions. Complement of second has 4 states. [2021-10-21 19:16:52,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:16:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:16:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-21 19:16:52,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-21 19:16:52,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:52,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-21 19:16:52,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:52,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 19:16:52,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:52,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2021-10-21 19:16:52,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:16:52,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2021-10-21 19:16:52,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 19:16:52,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-21 19:16:52,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-21 19:16:52,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:16:52,772 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-21 19:16:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-21 19:16:52,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-10-21 19:16:52,773 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) [2021-10-21 19:16:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-21 19:16:52,774 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-21 19:16:52,774 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-21 19:16:52,774 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:16:52,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-21 19:16:52,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:16:52,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:16:52,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:16:52,776 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:16:52,776 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:16:52,776 INFO L791 eck$LassoCheckResult]: Stem: 301#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 299#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 300#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2021-10-21 19:16:52,776 INFO L793 eck$LassoCheckResult]: Loop: 302#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 305#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2021-10-21 19:16:52,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:52,777 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-10-21 19:16:52,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:52,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011409366] [2021-10-21 19:16:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:52,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:52,797 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:52,808 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:52,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2021-10-21 19:16:52,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:52,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508810754] [2021-10-21 19:16:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:52,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:52,814 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:52,817 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:52,818 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 3 times [2021-10-21 19:16:52,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:16:52,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656411484] [2021-10-21 19:16:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:16:52,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:16:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:52,848 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:16:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:16:52,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:16:52,924 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:52,924 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:52,924 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:52,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:52,924 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:16:52,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:52,925 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:52,925 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:52,925 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2021-10-21 19:16:52,925 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:52,925 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:52,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:52,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:53,029 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:53,029 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:16:53,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,033 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:53,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:53,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:16:53,067 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:16:53,067 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:16:53,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:53,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,111 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:16:53,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:53,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:16:53,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:53,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,199 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:16:53,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:16:53,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:16:53,450 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:16:53,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 19:16:53,453 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:16:53,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:16:53,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:16:53,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:16:53,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:16:53,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:16:53,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:16:53,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2021-10-21 19:16:53,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:16:53,454 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:16:53,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:53,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:53,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:53,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:53,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:53,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:16:53,569 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:16:53,569 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:16:53,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,575 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:16:53,577 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 [2021-10-21 19:16:53,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:53,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:16:53,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:53,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:53,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:53,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:16:53,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:16:53,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:53,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:53,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,624 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:16:53,625 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 [2021-10-21 19:16:53,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:53,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:16:53,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:53,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:53,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:53,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:16:53,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:16:53,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:53,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:53,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,661 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:16:53,664 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 [2021-10-21 19:16:53,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:53,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:16:53,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:53,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:53,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:53,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:16:53,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:16:53,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:53,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:53,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,696 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:16:53,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:16:53,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:53,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:53,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:53,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:53,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:16:53,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:16:53,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:16:53,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-21 19:16:53,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,759 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:16:53,761 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 [2021-10-21 19:16:53,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:16:53,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:16:53,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:16:53,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:16:53,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:16:53,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:16:53,799 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:16:53,809 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-21 19:16:53,809 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:16:53,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:16:53,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:16:53,816 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:16:53,817 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:16:53,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:16:53,844 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 19:16:53,845 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:16:53,845 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~m~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~m~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2021-10-21 19:16:53,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-21 19:16:53,874 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-21 19:16:53,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:16:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:53,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:16:53,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:16:53,955 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:16:53,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:16:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:16:54,004 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-21 19:16:54,004 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-10-21 19:16:54,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Result 13 states and 16 transitions. Complement of second has 5 states. [2021-10-21 19:16:54,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:16:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-10-21 19:16:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-21 19:16:54,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:16:54,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:54,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:16:54,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:54,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-21 19:16:54,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:16:54,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-10-21 19:16:54,056 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:16:54,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-10-21 19:16:54,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:16:54,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:16:54,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:16:54,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:16:54,057 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:16:54,057 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:16:54,058 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:16:54,058 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:16:54,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:16:54,058 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:16:54,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:16:54,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:16:54 BoogieIcfgContainer [2021-10-21 19:16:54,066 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:16:54,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:16:54,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:16:54,067 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:16:54,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:16:49" (3/4) ... [2021-10-21 19:16:54,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:16:54,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:16:54,078 INFO L168 Benchmark]: Toolchain (without parser) took 5544.44 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 69.2 MB in the beginning and 56.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:54,085 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 102.8 MB. Free memory was 73.9 MB in the beginning and 73.9 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:16:54,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.64 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 80.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:54,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 102.8 MB. Free memory was 80.8 MB in the beginning and 79.8 MB in the end (delta: 972.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:16:54,091 INFO L168 Benchmark]: Boogie Preprocessor took 21.11 ms. Allocated memory is still 102.8 MB. Free memory was 79.3 MB in the beginning and 78.7 MB in the end (delta: 634.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:54,091 INFO L168 Benchmark]: RCFGBuilder took 302.41 ms. Allocated memory is still 102.8 MB. Free memory was 78.7 MB in the beginning and 70.9 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:54,092 INFO L168 Benchmark]: BuchiAutomizer took 4894.45 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 70.9 MB in the beginning and 56.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:54,096 INFO L168 Benchmark]: Witness Printer took 5.04 ms. Allocated memory is still 130.0 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:16:54,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 102.8 MB. Free memory was 73.9 MB in the beginning and 73.9 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.64 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 80.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 102.8 MB. Free memory was 80.8 MB in the beginning and 79.8 MB in the end (delta: 972.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.11 ms. Allocated memory is still 102.8 MB. Free memory was 79.3 MB in the beginning and 78.7 MB in the end (delta: 634.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 302.41 ms. Allocated memory is still 102.8 MB. Free memory was 78.7 MB in the beginning and 70.9 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4894.45 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 70.9 MB in the beginning and 56.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.04 ms. Allocated memory is still 130.0 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function i + -1 * m and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 18.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 27 SDslu, 6 SDs, 0 SdLazy, 49 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.8ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:16:54,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:54,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:16:54,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d932fb5-9316-4874-8f33-72bae3f37c5c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...