./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX --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 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:47:10,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:47:10,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:47:10,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:47:10,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:47:10,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:47:10,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:47:10,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:47:10,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:47:10,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:47:10,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:47:10,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:47:10,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:47:10,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:47:10,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:47:10,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:47:10,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:47:10,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:47:10,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:47:10,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:47:10,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:47:10,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:47:10,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:47:10,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:47:10,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:47:10,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:47:10,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:47:10,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:47:10,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:47:10,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:47:10,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:47:10,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:47:10,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:47:10,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:47:10,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:47:10,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:47:10,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:47:10,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:47:10,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:47:10,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:47:10,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:47:10,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-09 10:47:10,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:47:10,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:47:10,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:47:10,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:47:10,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:47:10,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:47:10,922 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:47:10,922 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 10:47:10,923 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 10:47:10,923 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 10:47:10,923 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 10:47:10,923 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 10:47:10,923 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 10:47:10,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:47:10,924 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:47:10,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:47:10,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:47:10,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 10:47:10,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 10:47:10,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 10:47:10,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:47:10,925 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 10:47:10,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:47:10,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 10:47:10,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:47:10,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:47:10,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:47:10,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:47:10,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:47:10,928 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 10:47:10,928 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_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 [2021-11-09 10:47:11,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:47:11,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:47:11,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:47:11,264 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:47:11,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:47:11,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2021-11-09 10:47:11,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/data/70f90c703/a5f4d95fdb7047c98b1679f45ad1a759/FLAGdfb11227f [2021-11-09 10:47:11,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:47:11,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2021-11-09 10:47:11,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/data/70f90c703/a5f4d95fdb7047c98b1679f45ad1a759/FLAGdfb11227f [2021-11-09 10:47:12,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/data/70f90c703/a5f4d95fdb7047c98b1679f45ad1a759 [2021-11-09 10:47:12,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:47:12,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:47:12,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:47:12,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:47:12,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:47:12,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a7774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12, skipping insertion in model container [2021-11-09 10:47:12,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:47:12,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:47:12,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:47:12,337 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:47:12,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:47:12,376 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:47:12,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12 WrapperNode [2021-11-09 10:47:12,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:47:12,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:47:12,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:47:12,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:47:12,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:47:12,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:47:12,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:47:12,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:47:12,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:47:12,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:47:12,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:47:12,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:47:12,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (1/1) ... [2021-11-09 10:47:12,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:12,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:12,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:12,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 10:47:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:47:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:47:12,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:47:12,691 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-09 10:47:12,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:47:12 BoogieIcfgContainer [2021-11-09 10:47:12,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:47:12,695 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 10:47:12,695 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 10:47:12,699 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 10:47:12,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:47:12,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:47:12" (1/3) ... [2021-11-09 10:47:12,702 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28d15e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:47:12, skipping insertion in model container [2021-11-09 10:47:12,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:47:12,702 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:47:12" (2/3) ... [2021-11-09 10:47:12,703 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28d15e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:47:12, skipping insertion in model container [2021-11-09 10:47:12,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:47:12,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:47:12" (3/3) ... [2021-11-09 10:47:12,705 INFO L389 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2021-11-09 10:47:12,767 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 10:47:12,767 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 10:47:12,767 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 10:47:12,767 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 10:47:12,767 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 10:47:12,768 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 10:47:12,768 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 10:47:12,768 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 10:47:12,787 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) [2021-11-09 10:47:12,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-11-09 10:47:12,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:47:12,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:47:12,813 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-09 10:47:12,813 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 10:47:12,813 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 10:47:12,814 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) [2021-11-09 10:47:12,816 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-11-09 10:47:12,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:47:12,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:47:12,816 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-09 10:47:12,817 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 10:47:12,824 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 4#L10-2true [2021-11-09 10:47:12,824 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0; 4#L10-2true [2021-11-09 10:47:12,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:12,831 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-11-09 10:47:12,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:12,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785895906] [2021-11-09 10:47:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:12,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:12,909 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:47:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:12,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:47:12,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:12,930 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-11-09 10:47:12,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:12,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145627586] [2021-11-09 10:47:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:12,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:12,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:47:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:12,947 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:47:12,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:12,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-11-09 10:47:12,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:12,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97899688] [2021-11-09 10:47:12,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:12,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:12,958 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:47:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:12,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:47:13,032 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:47:13,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:47:13,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:47:13,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:47:13,033 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 10:47:13,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:47:13,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:47:13,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2021-11-09 10:47:13,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:47:13,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:47:13,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,187 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:47:13,188 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 10:47:13,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:47:13,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:13,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 10:47:13,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 10:47:13,261 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: [] [2021-11-09 10:47:13,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:13,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 10:47:13,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:47:13,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:13,339 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 10:47:13,339 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: [] [2021-11-09 10:47:13,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:13,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 10:47:13,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:47:13,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:13,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-09 10:47:13,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,430 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 10:47:13,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 10:47:13,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:13,473 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 10:47:13,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-09 10:47:13,479 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:47:13,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:47:13,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:47:13,479 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:47:13,479 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:47:13,479 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:47:13,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:47:13,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2021-11-09 10:47:13,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:47:13,479 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:47:13,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:13,551 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:47:13,555 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 10:47:13,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,558 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 10:47:13,565 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 [2021-11-09 10:47:13,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:47:13,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:47:13,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:47:13,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:47:13,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:47:13,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:47:13,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:47:13,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:13,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,661 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 10:47:13,667 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 [2021-11-09 10:47:13,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:47:13,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:47:13,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:47:13,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:47:13,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:47:13,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:47:13,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:47:13,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-09 10:47:13,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 10:47:13,745 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 [2021-11-09 10:47:13,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:47:13,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:47:13,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:47:13,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:47:13,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:47:13,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:47:13,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:47:13,773 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 10:47:13,798 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 10:47:13,798 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 10:47:13,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:13,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:13,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:13,841 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 10:47:13,841 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 10:47:13,842 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 10:47:13,842 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2021-11-09 10:47:13,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 10:47:13,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:13,877 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 10:47:13,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:13,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:47:13,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:47:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:13,925 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:47:13,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:47:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:47:13,942 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 [2021-11-09 10:47:13,944 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 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-11-09 10:47:13,979 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 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 21 states and 29 transitions. Complement of second has 5 states. [2021-11-09 10:47:13,980 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 [2021-11-09 10:47:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-11-09 10:47:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-11-09 10:47:13,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 1 letters. [2021-11-09 10:47:13,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:47:13,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-09 10:47:13,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:47:13,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2021-11-09 10:47:13,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:47:13,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2021-11-09 10:47:13,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 10:47:13,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 5 states and 7 transitions. [2021-11-09 10:47:13,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-11-09 10:47:13,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-11-09 10:47:13,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2021-11-09 10:47:13,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:47:13,995 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-11-09 10:47:14,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2021-11-09 10:47:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-11-09 10:47:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) 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) [2021-11-09 10:47:14,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-11-09 10:47:14,021 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-11-09 10:47:14,021 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-11-09 10:47:14,021 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 10:47:14,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-11-09 10:47:14,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 10:47:14,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:47:14,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:47:14,023 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 10:47:14,023 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 10:47:14,023 INFO L791 eck$LassoCheckResult]: Stem: 61#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 58#L10-2 assume !(main_~i~0 < 100); 59#L10-3 main_~j~0 := 5; 62#L15-2 [2021-11-09 10:47:14,024 INFO L793 eck$LassoCheckResult]: Loop: 62#L15-2 assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0; 62#L15-2 [2021-11-09 10:47:14,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:14,024 INFO L85 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2021-11-09 10:47:14,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:14,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868798904] [2021-11-09 10:47:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:14,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:47:14,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:47:14,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868798904] [2021-11-09 10:47:14,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868798904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:47:14,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:47:14,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:47:14,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290454257] [2021-11-09 10:47:14,063 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 10:47:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:14,063 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2021-11-09 10:47:14,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:47:14,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210205215] [2021-11-09 10:47:14,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:47:14,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:47:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:14,071 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:47:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:47:14,076 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:47:14,099 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:47:14,099 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:47:14,099 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:47:14,099 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:47:14,099 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 10:47:14,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:47:14,100 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:47:14,100 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2021-11-09 10:47:14,100 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:47:14,100 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:47:14,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,160 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:47:14,160 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 10:47:14,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,161 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:47:14,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:14,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-09 10:47:14,201 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 10:47:14,201 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: [] [2021-11-09 10:47:14,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:14,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,239 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-09 10:47:14,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:47:14,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:14,264 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 10:47:14,264 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: [] [2021-11-09 10:47:14,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:14,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,295 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-09 10:47:14,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:47:14,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:14,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-09 10:47:14,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,332 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 10:47:14,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:47:14,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-09 10:47:14,397 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 10:47:14,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:14,404 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:47:14,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:47:14,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:47:14,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:47:14,405 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:47:14,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,405 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:47:14,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:47:14,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2021-11-09 10:47:14,405 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:47:14,405 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:47:14,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:47:14,481 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:47:14,481 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 10:47:14,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,485 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,494 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 [2021-11-09 10:47:14,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:47:14,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:47:14,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:47:14,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:47:14,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-09 10:47:14,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:47:14,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:47:14,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:47:14,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:14,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,552 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-09 10:47:14,554 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 [2021-11-09 10:47:14,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:47:14,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:47:14,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:47:14,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:47:14,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:47:14,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:47:14,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:47:14,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:14,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,618 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,624 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 [2021-11-09 10:47:14,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:47:14,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:47:14,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:47:14,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:47:14,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:47:14,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:47:14,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:47:14,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-09 10:47:14,649 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 10:47:14,651 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 10:47:14,651 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 10:47:14,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:47:14,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:47:14,657 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:47:14,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-09 10:47:14,661 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 10:47:14,665 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 10:47:14,665 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 10:47:14,665 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2021-11-09 10:47:14,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-11-09 10:47:14,698 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 10:47:14,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:47:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:14,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:47:14,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:47:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:47:14,745 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:47:14,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:47:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:47:14,749 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 [2021-11-09 10:47:14,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:14,758 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 8 transitions. Complement of second has 2 states. [2021-11-09 10:47:14,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-09 10:47:14,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2021-11-09 10:47:14,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-09 10:47:14,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:47:14,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-09 10:47:14,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:47:14,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-09 10:47:14,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:47:14,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2021-11-09 10:47:14,764 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:47:14,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2021-11-09 10:47:14,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 10:47:14,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 10:47:14,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 10:47:14,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:47:14,765 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:47:14,765 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:47:14,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:47:14,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:47:14,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:47:14,777 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:47:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:47:14,779 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-09 10:47:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 10:47:14,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-09 10:47:14,780 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:47:14,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 10:47:14,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 10:47:14,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 10:47:14,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 10:47:14,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:47:14,780 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:47:14,781 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:47:14,781 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:47:14,781 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 10:47:14,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 10:47:14,783 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:47:14,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 10:47:14,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 10:47:14 BoogieIcfgContainer [2021-11-09 10:47:14,789 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 10:47:14,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:47:14,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:47:14,791 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:47:14,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:47:12" (3/4) ... [2021-11-09 10:47:14,795 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 10:47:14,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:47:14,797 INFO L168 Benchmark]: Toolchain (without parser) took 2646.43 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.4 MB in the beginning and 50.2 MB in the end (delta: 208.4 kB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-11-09 10:47:14,798 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:47:14,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.78 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 83.4 MB in the end (delta: -33.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:47:14,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.46 ms. Allocated memory is still 104.9 MB. Free memory was 83.4 MB in the beginning and 82.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:47:14,801 INFO L168 Benchmark]: Boogie Preprocessor took 28.86 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 81.3 MB in the end (delta: 737.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:47:14,804 INFO L168 Benchmark]: RCFGBuilder took 250.62 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 73.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:47:14,805 INFO L168 Benchmark]: BuchiAutomizer took 2094.39 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 50.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-11-09 10:47:14,805 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 104.9 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:47:14,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 225.78 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 83.4 MB in the end (delta: -33.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.46 ms. Allocated memory is still 104.9 MB. Free memory was 83.4 MB in the beginning and 82.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.86 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 81.3 MB in the end (delta: 737.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 250.62 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 73.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2094.39 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 50.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 104.9 MB. Free memory is still 50.2 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function 43 + -2 * j and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 67ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 10:47:14,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:15,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-09 10:47:15,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d523255-14ba-4605-9e75-308ba6893d7b/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE