./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS --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 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:00:56,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:00:56,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:00:56,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:00:56,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:00:56,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:00:56,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:00:56,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:00:56,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:00:56,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:00:56,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:00:56,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:00:56,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:00:56,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:00:56,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:00:56,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:00:56,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:00:56,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:00:56,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:00:56,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:00:56,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:00:56,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:00:56,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:00:56,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:00:56,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:00:56,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:00:56,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:00:56,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:00:56,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:00:56,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:00:56,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:00:56,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:00:56,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:00:56,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:00:56,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:00:56,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:00:56,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:00:56,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:00:56,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:00:56,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:00:56,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:00:56,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-23 02:00:56,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:00:56,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:00:56,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:00:56,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:00:56,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:00:56,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:00:56,623 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:00:56,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 02:00:56,623 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 02:00:56,624 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 02:00:56,624 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 02:00:56,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 02:00:56,624 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 02:00:56,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:00:56,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:00:56,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:00:56,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:00:56,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 02:00:56,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 02:00:56,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 02:00:56,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:00:56,626 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 02:00:56,627 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:00:56,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 02:00:56,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:00:56,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:00:56,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:00:56,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:00:56,629 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 02:00:56,629 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_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 [2022-11-23 02:00:57,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:00:57,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:00:57,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:00:57,080 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:00:57,082 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:00:57,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-restricted-15/NO_04.c [2022-11-23 02:01:00,308 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:01:00,512 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:01:00,513 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/sv-benchmarks/c/termination-restricted-15/NO_04.c [2022-11-23 02:01:00,519 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/data/727120b58/5a3a2d12f48d444e9a62b5efdd20ee18/FLAG2c41ee484 [2022-11-23 02:01:00,535 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/data/727120b58/5a3a2d12f48d444e9a62b5efdd20ee18 [2022-11-23 02:01:00,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:01:00,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:01:00,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:01:00,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:01:00,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:01:00,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1383a7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00, skipping insertion in model container [2022-11-23 02:01:00,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:01:00,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:01:00,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:01:00,799 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:01:00,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:01:00,829 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:01:00,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00 WrapperNode [2022-11-23 02:01:00,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:01:00,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:01:00,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:01:00,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:01:00,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,869 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-11-23 02:01:00,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:01:00,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:01:00,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:01:00,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:01:00,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,893 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:01:00,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:01:00,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:01:00,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:01:00,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (1/1) ... [2022-11-23 02:01:00,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:00,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:00,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:00,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 02:01:00,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:01:00,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:01:01,064 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:01:01,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:01:01,170 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:01:01,179 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:01:01,179 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-23 02:01:01,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:01 BoogieIcfgContainer [2022-11-23 02:01:01,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:01:01,185 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 02:01:01,185 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 02:01:01,189 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 02:01:01,190 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:01:01,190 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:01:00" (1/3) ... [2022-11-23 02:01:01,191 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7efc26bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:01:01, skipping insertion in model container [2022-11-23 02:01:01,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:01:01,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:00" (2/3) ... [2022-11-23 02:01:01,192 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7efc26bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:01:01, skipping insertion in model container [2022-11-23 02:01:01,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:01:01,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:01" (3/3) ... [2022-11-23 02:01:01,194 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_04.c [2022-11-23 02:01:01,261 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 02:01:01,262 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 02:01:01,262 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 02:01:01,262 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 02:01:01,263 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 02:01:01,263 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 02:01:01,263 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 02:01:01,263 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 02:01:01,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2022-11-23 02:01:01,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-23 02:01:01,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:01:01,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:01:01,305 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 02:01:01,306 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:01:01,306 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 02:01:01,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2022-11-23 02:01:01,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-23 02:01:01,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:01:01,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:01:01,309 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 02:01:01,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:01:01,318 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 7#L15-2true [2022-11-23 02:01:01,319 INFO L750 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 10#L18-2true assume !(main_~j~0#1 < main_~a~0#1); 12#L18-3true main_~i~0#1 := 1 + main_~i~0#1; 7#L15-2true [2022-11-23 02:01:01,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:01,336 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-23 02:01:01,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735293352] [2022-11-23 02:01:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:01,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:01,430 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:01,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:01,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash 40983, now seen corresponding path program 1 times [2022-11-23 02:01:01,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:01,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196241023] [2022-11-23 02:01:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:01,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:01,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:01,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:01,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:01,484 INFO L85 PathProgramCache]: Analyzing trace with hash 28699925, now seen corresponding path program 1 times [2022-11-23 02:01:01,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:01,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062443150] [2022-11-23 02:01:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:01,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:01:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:01:01,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:01:01,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062443150] [2022-11-23 02:01:01,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062443150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:01:01,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:01:01,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:01:01,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637045029] [2022-11-23 02:01:01,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:01:01,718 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:01:01,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:01:01,719 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:01:01,719 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:01:01,719 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:01:01,719 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:01,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:01:01,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:01:01,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2022-11-23 02:01:01,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:01:01,721 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:01:01,757 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:01:01,808 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:01:01,814 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:01:01,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:01:02,000 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:01:02,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:01:02,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:01:02,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 02:01:02,077 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:01:02,077 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: [] [2022-11-23 02:01:02,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:02,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:01:02,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:01:02,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 02:01:02,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:01:02,140 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: [] [2022-11-23 02:01:02,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:02,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,153 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:01:02,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:01:02,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 02:01:02,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:02,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,226 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 02:01:02,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:01:02,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:01:02,489 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:01:02,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-23 02:01:02,494 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:01:02,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:01:02,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:01:02,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:01:02,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:01:02,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:01:02,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:01:02,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2022-11-23 02:01:02,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:01:02,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:01:02,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:01:02,511 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:01:02,517 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:01:02,596 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:01:02,601 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:01:02,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,604 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 02:01:02,612 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 [2022-11-23 02:01:02,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:01:02,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:01:02,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:01:02,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:01:02,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 02:01:02,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 02:01:02,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:01:02,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,666 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 02:01:02,671 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 [2022-11-23 02:01:02,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:01:02,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:01:02,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:01:02,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:01:02,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-23 02:01:02,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-23 02:01:02,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:01:02,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:02,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 02:01:02,732 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 [2022-11-23 02:01:02,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:01:02,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:01:02,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:01:02,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:01:02,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:01:02,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:01:02,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:01:02,755 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:01:02,765 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:01:02,765 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 02:01:02,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:01:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:01:02,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:01:02,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 02:01:02,812 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:01:02,815 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:01:02,815 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:01:02,816 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-23 02:01:02,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:02,830 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:01:02,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:01:02,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:01:02,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:01:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:01:02,900 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 02:01:02,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:01:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:01:03,056 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-23 02:01:03,059 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:01:03,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:03,207 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 103 transitions. Complement of second has 9 states. [2022-11-23 02:01:03,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-23 02:01:03,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:01:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2022-11-23 02:01:03,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-23 02:01:03,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:01:03,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-23 02:01:03,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:01:03,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-23 02:01:03,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:01:03,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 103 transitions. [2022-11-23 02:01:03,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-23 02:01:03,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 38 states and 55 transitions. [2022-11-23 02:01:03,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-23 02:01:03,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-23 02:01:03,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 55 transitions. [2022-11-23 02:01:03,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:01:03,232 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 55 transitions. [2022-11-23 02:01:03,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 55 transitions. [2022-11-23 02:01:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2022-11-23 02:01:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 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) [2022-11-23 02:01:03,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2022-11-23 02:01:03,264 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2022-11-23 02:01:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:01:03,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:01:03,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:01:03,269 INFO L87 Difference]: Start difference. First operand 25 states and 36 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:01:03,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:01:03,327 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2022-11-23 02:01:03,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2022-11-23 02:01:03,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-23 02:01:03,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 26 transitions. [2022-11-23 02:01:03,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-23 02:01:03,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-11-23 02:01:03,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2022-11-23 02:01:03,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:01:03,336 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2022-11-23 02:01:03,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2022-11-23 02:01:03,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2022-11-23 02:01:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:01:03,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-23 02:01:03,342 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-23 02:01:03,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:01:03,344 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-23 02:01:03,351 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 02:01:03,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-11-23 02:01:03,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-23 02:01:03,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:01:03,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:01:03,353 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 02:01:03,354 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:01:03,355 INFO L748 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 189#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 195#L15-2 [2022-11-23 02:01:03,355 INFO L750 eck$LassoCheckResult]: Loop: 195#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 190#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 191#L20-2 assume !(main_~k~0#1 >= 0); 196#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 197#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 194#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 195#L15-2 [2022-11-23 02:01:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-23 02:01:03,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000718768] [2022-11-23 02:01:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1221756439, now seen corresponding path program 1 times [2022-11-23 02:01:03,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529030010] [2022-11-23 02:01:03,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:01:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:01:03,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:01:03,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529030010] [2022-11-23 02:01:03,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529030010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:01:03,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:01:03,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:01:03,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525825299] [2022-11-23 02:01:03,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:01:03,489 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 02:01:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:01:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:01:03,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:01:03,490 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:01:03,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:01:03,524 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2022-11-23 02:01:03,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2022-11-23 02:01:03,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-11-23 02:01:03,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 24 transitions. [2022-11-23 02:01:03,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-11-23 02:01:03,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-23 02:01:03,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2022-11-23 02:01:03,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:01:03,526 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-11-23 02:01:03,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2022-11-23 02:01:03,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2022-11-23 02:01:03,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:01:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-23 02:01:03,529 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-23 02:01:03,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:01:03,530 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-23 02:01:03,530 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 02:01:03,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2022-11-23 02:01:03,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-23 02:01:03,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:01:03,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:01:03,532 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 02:01:03,532 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:01:03,532 INFO L748 eck$LassoCheckResult]: Stem: 227#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 236#L15-2 [2022-11-23 02:01:03,532 INFO L750 eck$LassoCheckResult]: Loop: 236#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 229#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 230#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 231#L23-2 assume !(main_~l~0#1 < main_~b~0#1); 232#L23-3 main_~k~0#1 := main_~k~0#1 - 1; 237#L20-2 assume !(main_~k~0#1 >= 0); 233#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 234#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 235#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 236#L15-2 [2022-11-23 02:01:03,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,533 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-23 02:01:03,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293177157] [2022-11-23 02:01:03,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:03,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1352067341, now seen corresponding path program 1 times [2022-11-23 02:01:03,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109999790] [2022-11-23 02:01:03,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:01:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:01:03,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:01:03,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109999790] [2022-11-23 02:01:03,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109999790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:01:03,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:01:03,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:01:03,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136804833] [2022-11-23 02:01:03,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:01:03,644 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 02:01:03,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:01:03,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:01:03,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:01:03,646 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:01:03,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:01:03,707 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2022-11-23 02:01:03,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2022-11-23 02:01:03,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-23 02:01:03,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2022-11-23 02:01:03,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-23 02:01:03,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-23 02:01:03,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2022-11-23 02:01:03,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:01:03,712 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-11-23 02:01:03,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2022-11-23 02:01:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-23 02:01:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-11-23 02:01:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2022-11-23 02:01:03,718 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-11-23 02:01:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:01:03,721 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-11-23 02:01:03,721 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-23 02:01:03,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2022-11-23 02:01:03,723 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-23 02:01:03,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:01:03,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:01:03,724 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-23 02:01:03,724 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:01:03,724 INFO L748 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 265#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 272#L15-2 [2022-11-23 02:01:03,725 INFO L750 eck$LassoCheckResult]: Loop: 272#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 266#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 267#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 268#L23-2 assume !!(main_~l~0#1 < main_~b~0#1);main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1); 262#L25-2 assume !(main_~m~0#1 >= 0); 263#L25-3 main_~l~0#1 := 1 + main_~l~0#1; 273#L23-2 assume !(main_~l~0#1 < main_~b~0#1); 274#L23-3 main_~k~0#1 := main_~k~0#1 - 1; 275#L20-2 assume !(main_~k~0#1 >= 0); 269#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 270#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 271#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 272#L15-2 [2022-11-23 02:01:03,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-11-23 02:01:03,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776131183] [2022-11-23 02:01:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:03,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1603093127, now seen corresponding path program 1 times [2022-11-23 02:01:03,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348198751] [2022-11-23 02:01:03,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:01:03,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:01:03,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:01:03,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348198751] [2022-11-23 02:01:03,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348198751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:01:03,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:01:03,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:01:03,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262522519] [2022-11-23 02:01:03,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:01:03,850 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 02:01:03,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:01:03,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:01:03,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:01:03,851 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-23 02:01:03,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:01:03,892 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-11-23 02:01:03,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2022-11-23 02:01:03,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-23 02:01:03,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 7 transitions. [2022-11-23 02:01:03,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-23 02:01:03,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-23 02:01:03,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7 transitions. [2022-11-23 02:01:03,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:01:03,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-23 02:01:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 7 transitions. [2022-11-23 02:01:03,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-23 02:01:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.0) internal successors, (7), 6 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) [2022-11-23 02:01:03,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-23 02:01:03,895 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-23 02:01:03,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:01:03,897 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-23 02:01:03,897 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-23 02:01:03,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2022-11-23 02:01:03,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-23 02:01:03,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:01:03,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:01:03,898 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:01:03,898 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-23 02:01:03,898 INFO L748 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 297#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 301#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 299#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 300#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 298#L23-2 assume !!(main_~l~0#1 < main_~b~0#1);main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1); 295#L25-2 [2022-11-23 02:01:03,898 INFO L750 eck$LassoCheckResult]: Loop: 295#L25-2 assume !!(main_~m~0#1 >= 0);main_~m~0#1 := main_~m~0#1 - 0; 295#L25-2 [2022-11-23 02:01:03,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash 889698581, now seen corresponding path program 1 times [2022-11-23 02:01:03,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943103308] [2022-11-23 02:01:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:03,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,913 INFO L85 PathProgramCache]: Analyzing trace with hash 78, now seen corresponding path program 1 times [2022-11-23 02:01:03,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488955216] [2022-11-23 02:01:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:03,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1810852282, now seen corresponding path program 1 times [2022-11-23 02:01:03,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:01:03,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560993087] [2022-11-23 02:01:03,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:01:03,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:01:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:03,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:01:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:04,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:01:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:01:04,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:01:04 BoogieIcfgContainer [2022-11-23 02:01:04,098 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 02:01:04,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:01:04,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:01:04,099 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:01:04,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:01" (3/4) ... [2022-11-23 02:01:04,102 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-23 02:01:04,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:01:04,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:01:04,141 INFO L158 Benchmark]: Toolchain (without parser) took 3600.64ms. Allocated memory is still 186.6MB. Free memory was 148.6MB in the beginning and 114.4MB in the end (delta: 34.2MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-23 02:01:04,141 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:01:04,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.45ms. Allocated memory is still 186.6MB. Free memory was 148.1MB in the beginning and 152.5MB in the end (delta: -4.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 02:01:04,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.70ms. Allocated memory is still 186.6MB. Free memory was 152.5MB in the beginning and 151.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:01:04,142 INFO L158 Benchmark]: Boogie Preprocessor took 25.00ms. Allocated memory is still 186.6MB. Free memory was 151.3MB in the beginning and 150.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:01:04,143 INFO L158 Benchmark]: RCFGBuilder took 287.31ms. Allocated memory is still 186.6MB. Free memory was 150.0MB in the beginning and 141.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 02:01:04,143 INFO L158 Benchmark]: BuchiAutomizer took 2913.04ms. Allocated memory is still 186.6MB. Free memory was 140.6MB in the beginning and 116.5MB in the end (delta: 24.1MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-11-23 02:01:04,144 INFO L158 Benchmark]: Witness Printer took 41.50ms. Allocated memory is still 186.6MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:01:04,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.45ms. Allocated memory is still 186.6MB. Free memory was 148.1MB in the beginning and 152.5MB in the end (delta: -4.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.70ms. Allocated memory is still 186.6MB. Free memory was 152.5MB in the beginning and 151.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.00ms. Allocated memory is still 186.6MB. Free memory was 151.3MB in the beginning and 150.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 287.31ms. Allocated memory is still 186.6MB. Free memory was 150.0MB in the beginning and 141.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2913.04ms. Allocated memory is still 186.6MB. Free memory was 140.6MB in the beginning and 116.5MB in the end (delta: 24.1MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Witness Printer took 41.50ms. Allocated memory is still 186.6MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 39 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf91 smp100 dnf100 smp100 tf106 neg97 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 25]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-23 02:01:04,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1238bac8-3049-443c-a390-eb9ece417a42/bin/uautomizer-QkZJyEgLgS/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)