./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:29:32,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:29:32,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:29:33,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:29:33,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:29:33,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:29:33,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:29:33,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:29:33,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:29:33,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:29:33,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:29:33,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:29:33,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:29:33,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:29:33,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:29:33,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:29:33,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:29:33,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:29:33,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:29:33,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:29:33,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:29:33,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:29:33,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:29:33,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:29:33,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:29:33,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:29:33,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:29:33,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:29:33,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:29:33,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:29:33,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:29:33,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:29:33,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:29:33,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:29:33,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:29:33,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:29:33,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:29:33,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:29:33,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:29:33,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:29:33,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:29:33,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:29:33,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:29:33,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:29:33,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:29:33,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:29:33,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:29:33,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:29:33,161 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:29:33,161 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:29:33,161 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:29:33,161 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:29:33,162 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:29:33,162 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:29:33,162 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:29:33,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:29:33,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:29:33,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:29:33,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:29:33,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:29:33,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:29:33,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:29:33,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:29:33,165 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:29:33,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:29:33,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:29:33,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:29:33,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:29:33,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:29:33,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:29:33,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:29:33,168 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:29:33,168 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_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 [2021-10-28 23:29:33,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:29:33,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:29:33,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:29:33,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:29:33,488 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:29:33,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-10-28 23:29:33,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/data/19f8bec09/5254e124c14d427587622a0838078392/FLAG176249c98 [2021-10-28 23:29:34,100 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:29:34,102 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-10-28 23:29:34,118 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/data/19f8bec09/5254e124c14d427587622a0838078392/FLAG176249c98 [2021-10-28 23:29:34,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/data/19f8bec09/5254e124c14d427587622a0838078392 [2021-10-28 23:29:34,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:29:34,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:29:34,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:29:34,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:29:34,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:29:34,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657a22c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34, skipping insertion in model container [2021-10-28 23:29:34,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:29:34,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:29:34,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:29:34,681 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:29:34,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:29:34,716 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:29:34,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34 WrapperNode [2021-10-28 23:29:34,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:29:34,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:29:34,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:29:34,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:29:34,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:29:34,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:29:34,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:29:34,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:29:34,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:29:34,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:29:34,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:29:34,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:29:34,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:34,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:34,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:34,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:29:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:29:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:29:35,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:29:35,021 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:29:35,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:35 BoogieIcfgContainer [2021-10-28 23:29:35,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:29:35,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:29:35,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:29:35,029 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:29:35,030 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:29:35,030 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:29:34" (1/3) ... [2021-10-28 23:29:35,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c659fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:29:35, skipping insertion in model container [2021-10-28 23:29:35,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:29:35,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (2/3) ... [2021-10-28 23:29:35,033 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c659fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:29:35, skipping insertion in model container [2021-10-28 23:29:35,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:29:35,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:35" (3/3) ... [2021-10-28 23:29:35,035 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2021-10-28 23:29:35,101 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:29:35,102 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:29:35,102 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:29:35,102 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:29:35,102 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:29:35,102 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:29:35,102 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:29:35,103 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:29:35,117 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) [2021-10-28 23:29:35,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:29:35,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:35,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:35,149 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:29:35,149 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:29:35,149 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:29:35,150 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) [2021-10-28 23:29:35,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:29:35,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:35,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:35,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:29:35,153 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:29:35,162 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~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 := 0;main_~j~0 := 0; 8#L21-2true [2021-10-28 23:29:35,162 INFO L793 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~i~0 < main_~n~0); 6#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 8#L21-2true [2021-10-28 23:29:35,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:35,171 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-28 23:29:35,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:35,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866506101] [2021-10-28 23:29:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:35,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,324 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,373 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:35,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-10-28 23:29:35,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:35,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482231087] [2021-10-28 23:29:35,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:35,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,402 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,409 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:35,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:35,422 INFO L85 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-10-28 23:29:35,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:35,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83524407] [2021-10-28 23:29:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:35,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,448 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:35,645 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:35,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:35,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:35,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:35,646 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:35,647 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:35,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:35,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:35,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2021-10-28 23:29:35,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:35,648 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:35,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:35,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:35,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:35,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:35,801 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:35,802 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:35,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:35,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:35,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:35,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:29:35,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:35,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:35,871 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:35,871 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: [] [2021-10-28 23:29:35,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:35,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:35,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:35,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:35,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:29:35,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:35,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:35,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:35,956 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: [] [2021-10-28 23:29:35,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:35,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:35,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:35,998 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:36,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:36,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:29:36,026 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:36,026 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:29:36,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:36,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:36,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:36,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:36,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:29:36,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:36,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:36,134 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:36,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:36,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:29:36,356 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:36,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 23:29:36,360 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:36,360 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:36,360 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:36,360 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:36,360 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:36,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,360 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:36,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:36,361 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2021-10-28 23:29:36,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:36,361 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:36,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:36,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:36,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:36,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:36,473 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:36,488 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:36,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:36,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:29:36,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:36,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:36,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:36,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:36,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:36,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:36,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:36,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:36,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:36,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:36,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:36,595 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:36,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:36,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:36,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:36,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:36,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:29:36,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:29:36,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:29:36,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:36,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:36,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:36,727 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:36,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:36,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:36,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:36,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:36,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:29:36,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:29:36,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:29:36,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:36,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:36,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:36,830 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:36,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:29:36,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:36,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:36,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:36,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:36,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:36,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:36,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:36,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:36,858 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:29:36,858 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:29:36,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:36,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:36,865 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:36,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:29:36,895 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:36,895 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:36,895 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:36,896 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2021-10-28 23:29:36,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:36,924 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:36,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:36,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:36,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:36,995 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:36,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:37,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:29:37,037 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) [2021-10-28 23:29:37,087 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 6 states. [2021-10-28 23:29:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:29:37,090 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) [2021-10-28 23:29:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-28 23:29:37,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 23:29:37,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:37,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:29:37,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:37,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 23:29:37,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:37,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-28 23:29:37,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:29:37,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-10-28 23:29:37,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 23:29:37,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 23:29:37,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-28 23:29:37,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:37,107 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:29:37,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-28 23:29:37,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-28 23:29:37,137 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) [2021-10-28 23:29:37,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-10-28 23:29:37,138 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:29:37,138 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:29:37,138 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:29:37,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-10-28 23:29:37,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:29:37,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:37,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:37,140 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:29:37,140 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:29:37,140 INFO L791 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~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; 72#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 73#L21-2 assume !!(main_~i~0 < main_~n~0); 75#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 76#L21-2 [2021-10-28 23:29:37,140 INFO L793 eck$LassoCheckResult]: Loop: 76#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 76#L21-2 [2021-10-28 23:29:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:37,141 INFO L85 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2021-10-28 23:29:37,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:37,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071302292] [2021-10-28 23:29:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:37,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:37,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:37,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071302292] [2021-10-28 23:29:37,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071302292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:29:37,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:29:37,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:29:37,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967186686] [2021-10-28 23:29:37,197 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:29:37,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:37,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2021-10-28 23:29:37,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:37,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427848654] [2021-10-28 23:29:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:37,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,205 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:37,237 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:37,237 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:37,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:37,237 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:37,238 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:37,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:37,238 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:37,238 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2021-10-28 23:29:37,238 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:37,238 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:37,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:37,376 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:37,376 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:37,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:37,378 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:37,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:29:37,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:37,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:37,416 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:37,416 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: [] [2021-10-28 23:29:37,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:37,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:37,463 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:37,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:37,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:37,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:29:37,492 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:29:37,492 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: [] [2021-10-28 23:29:37,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:37,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:37,524 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:37,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:29:37,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:37,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:37,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:37,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:37,567 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:37,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:29:37,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:37,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:37,751 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:37,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:37,754 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:37,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:37,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:37,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:37,755 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:37,755 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,755 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:37,755 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:37,755 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2021-10-28 23:29:37,755 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:37,755 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:37,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:37,845 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:37,846 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:37,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:37,847 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:37,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:37,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:29:37,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:37,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:37,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:37,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:37,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:29:37,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:29:37,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:37,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:37,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:37,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:37,943 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:37,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:37,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:37,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:37,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:37,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:37,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:29:37,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:29:37,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:29:37,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:29:38,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:38,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:38,038 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:38,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:38,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:29:38,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:38,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:38,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:38,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:38,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:38,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:38,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:38,083 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:38,088 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:29:38,089 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:29:38,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:38,095 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:38,100 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:38,100 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:38,100 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:38,100 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2021-10-28 23:29:38,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:29:38,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:38,148 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:38,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:38,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:38,208 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:38,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:38,218 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:29:38,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2021-10-28 23:29:38,228 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 12 states and 17 transitions. Complement of second has 5 states. [2021-10-28 23:29:38,230 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 [2021-10-28 23:29:38,230 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) [2021-10-28 23:29:38,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 23:29:38,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:29:38,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:38,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 23:29:38,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:38,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 23:29:38,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:38,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-10-28 23:29:38,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:29:38,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-10-28 23:29:38,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 23:29:38,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:29:38,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-10-28 23:29:38,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:38,235 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 23:29:38,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-10-28 23:29:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 23:29:38,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-10-28 23:29:38,237 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 23:29:38,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:38,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:29:38,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:29:38,241 INFO L87 Difference]: Start difference. First operand 12 states and 17 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) [2021-10-28 23:29:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:38,251 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2021-10-28 23:29:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:29:38,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2021-10-28 23:29:38,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:29:38,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2021-10-28 23:29:38,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:29:38,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:29:38,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-10-28 23:29:38,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:38,254 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 23:29:38,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-10-28 23:29:38,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-28 23:29:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:38,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-28 23:29:38,257 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 23:29:38,257 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 23:29:38,257 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:29:38,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-28 23:29:38,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:29:38,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:38,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:38,259 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2021-10-28 23:29:38,259 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:29:38,259 INFO L791 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 155#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 160#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 158#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 159#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2021-10-28 23:29:38,259 INFO L793 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~i~0 < main_~n~0); 163#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 162#L21-2 [2021-10-28 23:29:38,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:38,260 INFO L85 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2021-10-28 23:29:38,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:38,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102780152] [2021-10-28 23:29:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:38,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:29:38,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:38,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102780152] [2021-10-28 23:29:38,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102780152] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:29:38,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424564808] [2021-10-28 23:29:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:38,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:29:38,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:38,304 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:29:38,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 23:29:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:38,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:29:38,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:29:38,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424564808] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:29:38,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:29:38,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-28 23:29:38,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346068345] [2021-10-28 23:29:38,443 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:29:38,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2021-10-28 23:29:38,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:38,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827368003] [2021-10-28 23:29:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:38,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:38,450 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:38,460 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:38,507 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:38,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:38,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:38,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:38,508 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:38,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:38,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:38,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2021-10-28 23:29:38,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:38,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:38,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,586 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:38,586 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:38,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:38,592 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:38,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:38,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:38,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:29:38,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:38,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:38,658 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:38,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:29:38,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:38,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:38,839 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:38,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:38,843 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:38,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:38,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:38,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:38,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:38,843 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:38,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:38,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2021-10-28 23:29:38,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:38,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:38,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:38,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:38,909 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:38,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:38,911 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:38,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:38,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:29:38,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:38,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:38,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:38,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:38,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:38,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:38,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:38,958 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:38,963 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:29:38,963 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:29:38,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:38,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:38,984 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:38,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:29:38,994 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:38,995 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:38,995 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:38,995 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2021-10-28 23:29:39,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:39,024 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:39,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:39,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:39,105 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:39,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:39,115 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:29:39,115 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:39,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 20 transitions. Complement of second has 5 states. [2021-10-28 23:29:39,130 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 [2021-10-28 23:29:39,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:39,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 23:29:39,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:29:39,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:39,132 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:29:39,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:39,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:39,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:39,197 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:39,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:39,209 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:29:39,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:39,222 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 20 transitions. Complement of second has 5 states. [2021-10-28 23:29:39,223 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 [2021-10-28 23:29:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:39,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 23:29:39,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:29:39,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:39,225 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:29:39,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:39,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:39,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:39,308 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:39,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:39,323 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 1 loop predicates [2021-10-28 23:29:39,323 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:39,337 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 23 transitions. Complement of second has 4 states. [2021-10-28 23:29:39,338 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 [2021-10-28 23:29:39,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:39,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 23:29:39,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:29:39,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:39,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 23:29:39,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:39,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 23:29:39,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:39,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2021-10-28 23:29:39,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:29:39,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2021-10-28 23:29:39,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:29:39,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:29:39,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-10-28 23:29:39,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:39,355 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-28 23:29:39,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-10-28 23:29:39,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2021-10-28 23:29:39,358 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) [2021-10-28 23:29:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-28 23:29:39,360 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 23:29:39,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:39,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:29:39,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:29:39,365 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:39,376 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-28 23:29:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:29:39,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-28 23:29:39,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:29:39,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2021-10-28 23:29:39,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 23:29:39,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 23:29:39,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2021-10-28 23:29:39,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:29:39,380 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-10-28 23:29:39,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2021-10-28 23:29:39,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2021-10-28 23:29:39,381 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) [2021-10-28 23:29:39,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-10-28 23:29:39,381 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-28 23:29:39,381 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-28 23:29:39,381 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:29:39,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-10-28 23:29:39,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:29:39,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:39,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:39,385 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:29:39,385 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-28 23:29:39,385 INFO L791 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~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; 368#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 369#L21-2 [2021-10-28 23:29:39,385 INFO L793 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~i~0 < main_~n~0); 372#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 373#L21-2 assume !!(main_~i~0 < main_~n~0); 371#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 369#L21-2 [2021-10-28 23:29:39,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2021-10-28 23:29:39,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:39,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500473949] [2021-10-28 23:29:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:39,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:39,410 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:39,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:39,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2021-10-28 23:29:39,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:39,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399693033] [2021-10-28 23:29:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:39,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:39,428 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:39,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:39,455 INFO L85 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2021-10-28 23:29:39,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:39,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405843186] [2021-10-28 23:29:39,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:39,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:39,463 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:39,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:39,553 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:39,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:39,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:39,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:39,554 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:29:39,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:39,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:39,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:39,554 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2021-10-28 23:29:39,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:39,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:39,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:39,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:39,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:39,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:39,652 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:39,652 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:29:39,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:39,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:39,654 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:39,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:29:39,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:39,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:29:39,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:39,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:39,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:39,729 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:39,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:29:39,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:29:39,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:29:39,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:39,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:40,003 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:29:40,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:40,011 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:29:40,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:29:40,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:29:40,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:29:40,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:29:40,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:40,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:29:40,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:29:40,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2021-10-28 23:29:40,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:29:40,012 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:29:40,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:40,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:40,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:40,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:29:40,130 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:29:40,130 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:29:40,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:40,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:40,133 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:40,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:29:40,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:29:40,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:29:40,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:29:40,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:29:40,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:29:40,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:29:40,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:29:40,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:29:40,162 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:29:40,168 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:29:40,169 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:29:40,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:40,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:40,170 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:40,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:29:40,173 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:29:40,174 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:29:40,174 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-28 23:29:40,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:29:40,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:40,221 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:29:40,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:40,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:29:40,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:40,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:29:40,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:29:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:29:40,319 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:29:40,320 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) [2021-10-28 23:29:40,334 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 11 states and 14 transitions. Complement of second has 4 states. [2021-10-28 23:29:40,335 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 [2021-10-28 23:29:40,335 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) [2021-10-28 23:29:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 23:29:40,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 23:29:40,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:40,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 23:29:40,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:40,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-28 23:29:40,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:29:40,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2021-10-28 23:29:40,340 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:29:40,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-10-28 23:29:40,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:29:40,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:29:40,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:29:40,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:29:40,341 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:40,342 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:40,342 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:29:40,342 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:29:40,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:29:40,342 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:29:40,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:29:40,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:29:40 BoogieIcfgContainer [2021-10-28 23:29:40,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:29:40,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:29:40,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:29:40,351 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:29:40,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:35" (3/4) ... [2021-10-28 23:29:40,356 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:29:40,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:29:40,358 INFO L168 Benchmark]: Toolchain (without parser) took 5891.33 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 83.4 MB in the beginning and 103.7 MB in the end (delta: -20.2 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:40,359 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 113.2 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:29:40,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.02 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 83.4 MB in the beginning and 121.5 MB in the end (delta: -38.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:40,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.06 ms. Allocated memory is still 144.7 MB. Free memory was 121.5 MB in the beginning and 119.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:29:40,371 INFO L168 Benchmark]: Boogie Preprocessor took 21.76 ms. Allocated memory is still 144.7 MB. Free memory was 119.9 MB in the beginning and 118.9 MB in the end (delta: 998.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:40,371 INFO L168 Benchmark]: RCFGBuilder took 245.23 ms. Allocated memory is still 144.7 MB. Free memory was 118.9 MB in the beginning and 111.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:40,372 INFO L168 Benchmark]: BuchiAutomizer took 5325.47 ms. Allocated memory is still 144.7 MB. Free memory was 111.1 MB in the beginning and 104.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:29:40,373 INFO L168 Benchmark]: Witness Printer took 5.00 ms. Allocated memory is still 144.7 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:29:40,376 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 113.2 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.02 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 83.4 MB in the beginning and 121.5 MB in the end (delta: -38.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.06 ms. Allocated memory is still 144.7 MB. Free memory was 121.5 MB in the beginning and 119.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.76 ms. Allocated memory is still 144.7 MB. Free memory was 119.9 MB in the beginning and 118.9 MB in the end (delta: 998.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 245.23 ms. Allocated memory is still 144.7 MB. Free memory was 118.9 MB in the beginning and 111.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5325.47 ms. Allocated memory is still 144.7 MB. Free memory was 111.1 MB in the beginning and 104.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.00 ms. Allocated memory is still 144.7 MB. Free memory is still 103.7 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function m + -1 * j and consists of 4 locations. One deterministic module has affine ranking function m + -1 * j and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function m + -1 * j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 34 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:29:40,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 23:29:40,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:29:40,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d26a42c-7d0c-416e-80c1-10810fc25531/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...