./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 2329fc70 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_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 12:36:43,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:36:43,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:36:43,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:36:43,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:36:43,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:36:43,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:36:43,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:36:43,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:36:43,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:36:43,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:36:43,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:36:43,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:36:43,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:36:43,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:36:43,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:36:43,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:36:43,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:36:43,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:36:43,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:36:43,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:36:43,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:36:43,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:36:43,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:36:43,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:36:43,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:36:43,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:36:43,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:36:43,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:36:43,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:36:43,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:36:43,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:36:43,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:36:43,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:36:43,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:36:43,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:36:43,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:36:43,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:36:43,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:36:43,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:36:43,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:36:43,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 12:36:43,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:36:43,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:36:43,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:36:43,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:36:43,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:36:43,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:36:43,863 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:36:43,864 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:36:43,864 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:36:43,864 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:36:43,864 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:36:43,864 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:36:43,864 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:36:43,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:36:43,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:36:43,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:36:43,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:36:43,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:36:43,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:36:43,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:36:43,867 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:36:43,867 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_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 [2022-12-13 12:36:44,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:36:44,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:36:44,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:36:44,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:36:44,068 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:36:44,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-restricted-15/NO_04.c [2022-12-13 12:36:46,650 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:36:46,804 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:36:46,804 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/sv-benchmarks/c/termination-restricted-15/NO_04.c [2022-12-13 12:36:46,808 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/data/e7ca4deb3/5da6afb067314fd7b8f4c0b6cc640867/FLAG7e568ee0e [2022-12-13 12:36:47,224 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/data/e7ca4deb3/5da6afb067314fd7b8f4c0b6cc640867 [2022-12-13 12:36:47,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:36:47,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:36:47,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:36:47,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:36:47,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:36:47,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d9fa04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47, skipping insertion in model container [2022-12-13 12:36:47,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:36:47,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:36:47,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:36:47,346 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:36:47,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:36:47,366 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:36:47,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47 WrapperNode [2022-12-13 12:36:47,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:36:47,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:36:47,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:36:47,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:36:47,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,387 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-12-13 12:36:47,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:36:47,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:36:47,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:36:47,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:36:47,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:36:47,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:36:47,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:36:47,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:36:47,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (1/1) ... [2022-12-13 12:36:47,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:47,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:47,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:36:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:36:47,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:36:47,509 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:36:47,510 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:36:47,566 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:36:47,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:36:47,570 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 12:36:47,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:36:47 BoogieIcfgContainer [2022-12-13 12:36:47,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:36:47,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:36:47,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:36:47,575 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:36:47,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:36:47,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:36:47" (1/3) ... [2022-12-13 12:36:47,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1271496c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:36:47, skipping insertion in model container [2022-12-13 12:36:47,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:36:47,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:47" (2/3) ... [2022-12-13 12:36:47,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1271496c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:36:47, skipping insertion in model container [2022-12-13 12:36:47,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:36:47,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:36:47" (3/3) ... [2022-12-13 12:36:47,578 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_04.c [2022-12-13 12:36:47,619 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:36:47,620 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:36:47,620 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:36:47,620 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:36:47,620 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:36:47,620 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:36:47,620 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:36:47,620 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:36:47,624 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) [2022-12-13 12:36:47,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-12-13 12:36:47,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:36:47,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:36:47,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:36:47,643 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 12:36:47,643 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:36:47,644 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) [2022-12-13 12:36:47,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-12-13 12:36:47,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:36:47,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:36:47,646 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:36:47,646 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 12:36:47,651 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 6#L15-2true [2022-12-13 12:36:47,652 INFO L750 eck$LassoCheckResult]: Loop: 6#L15-2true assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 9#L18-2true assume !(main_~j~0#1 < main_~a~0#1); 12#L18-3true main_~i~0#1 := 1 + main_~i~0#1; 6#L15-2true [2022-12-13 12:36:47,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 12:36:47,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:47,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273981770] [2022-12-13 12:36:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:47,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:47,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:47,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:47,743 INFO L85 PathProgramCache]: Analyzing trace with hash 40983, now seen corresponding path program 1 times [2022-12-13 12:36:47,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:47,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533543082] [2022-12-13 12:36:47,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:47,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:47,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:47,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:47,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:47,763 INFO L85 PathProgramCache]: Analyzing trace with hash 28699925, now seen corresponding path program 1 times [2022-12-13 12:36:47,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:47,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35404872] [2022-12-13 12:36:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:47,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:47,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:47,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35404872] [2022-12-13 12:36:47,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35404872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:36:47,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:36:47,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:36:47,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901053605] [2022-12-13 12:36:47,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:36:47,904 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:36:47,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:36:47,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:36:47,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:36:47,905 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:36:47,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:47,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:36:47,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:36:47,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2022-12-13 12:36:47,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:36:47,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:36:47,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:36:47,934 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:36:47,938 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:36:48,012 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:36:48,013 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:36:48,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 12:36:48,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:36:48,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:36:48,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:36:48,040 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: [] [2022-12-13 12:36:48,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:36:48,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 12:36:48,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:36:48,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:36:48,065 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:36:48,065 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: [] [2022-12-13 12:36:48,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 12:36:48,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 12:36:48,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:36:48,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:36:48,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 12:36:48,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 12:36:48,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:36:48,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:36:48,308 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:36:48,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 12:36:48,312 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:36:48,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:36:48,312 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:36:48,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:36:48,312 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:36:48,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:36:48,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:36:48,312 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2022-12-13 12:36:48,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:36:48,313 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:36:48,315 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:36:48,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:36:48,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:36:48,362 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:36:48,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:36:48,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 12:36:48,371 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 [2022-12-13 12:36:48,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:36:48,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:36:48,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:36:48,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:36:48,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 12:36:48,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 12:36:48,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:36:48,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 12:36:48,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 12:36:48,399 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 [2022-12-13 12:36:48,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:36:48,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:36:48,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:36:48,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:36:48,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 12:36:48,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 12:36:48,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:36:48,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-12-13 12:36:48,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,422 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 12:36:48,424 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 [2022-12-13 12:36:48,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:36:48,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:36:48,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:36:48,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:36:48,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:36:48,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:36:48,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:36:48,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:36:48,447 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:36:48,447 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 12:36:48,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:36:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:48,476 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:48,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 12:36:48,478 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:36:48,478 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:36:48,478 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:36:48,479 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 [] [2022-12-13 12:36:48,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 12:36:48,485 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:36:48,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:48,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:36:48,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:36:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:48,519 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:36:48,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:36:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:48,595 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 [2022-12-13 12:36:48,596 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) [2022-12-13 12:36:48,666 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. [2022-12-13 12:36:48,668 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 [2022-12-13 12:36:48,671 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) [2022-12-13 12:36:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2022-12-13 12:36:48,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 2 letters. Loop has 3 letters. [2022-12-13 12:36:48,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:36:48,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 12:36:48,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:36:48,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 2 letters. Loop has 6 letters. [2022-12-13 12:36:48,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:36:48,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 103 transitions. [2022-12-13 12:36:48,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:36:48,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 38 states and 55 transitions. [2022-12-13 12:36:48,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-12-13 12:36:48,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-12-13 12:36:48,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 55 transitions. [2022-12-13 12:36:48,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:36:48,682 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 55 transitions. [2022-12-13 12:36:48,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 55 transitions. [2022-12-13 12:36:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2022-12-13 12:36:48,700 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) [2022-12-13 12:36:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2022-12-13 12:36:48,701 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2022-12-13 12:36:48,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:48,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:36:48,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:36:48,704 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) [2022-12-13 12:36:48,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:48,729 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2022-12-13 12:36:48,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2022-12-13 12:36:48,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:36:48,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 26 transitions. [2022-12-13 12:36:48,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-12-13 12:36:48,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-12-13 12:36:48,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2022-12-13 12:36:48,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:36:48,731 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2022-12-13 12:36:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2022-12-13 12:36:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2022-12-13 12:36:48,732 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) [2022-12-13 12:36:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-12-13 12:36:48,733 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-12-13 12:36:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:36:48,734 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-12-13 12:36:48,734 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:36:48,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-12-13 12:36:48,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-12-13 12:36:48,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:36:48,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:36:48,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:36:48,735 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:36:48,735 INFO L748 eck$LassoCheckResult]: Stem: 196#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 197#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; 193#L15-2 [2022-12-13 12:36:48,735 INFO L750 eck$LassoCheckResult]: Loop: 193#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 188#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 189#L20-2 assume !(main_~k~0#1 >= 0); 194#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 195#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 192#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 193#L15-2 [2022-12-13 12:36:48,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,736 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-12-13 12:36:48,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700912894] [2022-12-13 12:36:48,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:48,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1221756439, now seen corresponding path program 1 times [2022-12-13 12:36:48,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432932275] [2022-12-13 12:36:48,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:48,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:48,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432932275] [2022-12-13 12:36:48,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432932275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:36:48,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:36:48,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:36:48,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027687741] [2022-12-13 12:36:48,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:36:48,780 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:36:48,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:48,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:36:48,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:36:48,781 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) [2022-12-13 12:36:48,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:48,805 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2022-12-13 12:36:48,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2022-12-13 12:36:48,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-12-13 12:36:48,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 24 transitions. [2022-12-13 12:36:48,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-12-13 12:36:48,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-12-13 12:36:48,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2022-12-13 12:36:48,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:36:48,807 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-12-13 12:36:48,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2022-12-13 12:36:48,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2022-12-13 12:36:48,808 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) [2022-12-13 12:36:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-12-13 12:36:48,809 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-12-13 12:36:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:36:48,810 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-12-13 12:36:48,810 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 12:36:48,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2022-12-13 12:36:48,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-12-13 12:36:48,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:36:48,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:36:48,810 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:36:48,811 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:48,811 INFO L748 eck$LassoCheckResult]: Stem: 235#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 236#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; 234#L15-2 [2022-12-13 12:36:48,811 INFO L750 eck$LassoCheckResult]: Loop: 234#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 227#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 228#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; 229#L23-2 assume !(main_~l~0#1 < main_~b~0#1); 230#L23-3 main_~k~0#1 := main_~k~0#1 - 1; 237#L20-2 assume !(main_~k~0#1 >= 0); 231#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 232#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 233#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 234#L15-2 [2022-12-13 12:36:48,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,811 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-12-13 12:36:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089867465] [2022-12-13 12:36:48,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:48,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1352067341, now seen corresponding path program 1 times [2022-12-13 12:36:48,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532565584] [2022-12-13 12:36:48,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:48,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:48,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532565584] [2022-12-13 12:36:48,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532565584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:36:48,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:36:48,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:36:48,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711746736] [2022-12-13 12:36:48,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:36:48,856 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:36:48,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:48,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:36:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:36:48,857 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) [2022-12-13 12:36:48,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:48,885 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2022-12-13 12:36:48,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2022-12-13 12:36:48,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-12-13 12:36:48,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2022-12-13 12:36:48,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-12-13 12:36:48,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-12-13 12:36:48,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2022-12-13 12:36:48,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:36:48,887 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-12-13 12:36:48,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2022-12-13 12:36:48,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-12-13 12:36:48,888 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) [2022-12-13 12:36:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2022-12-13 12:36:48,888 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-12-13 12:36:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:36:48,889 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-12-13 12:36:48,889 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 12:36:48,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2022-12-13 12:36:48,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-12-13 12:36:48,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:36:48,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:36:48,890 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:36:48,890 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:48,891 INFO L748 eck$LassoCheckResult]: Stem: 272#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 273#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; 270#L15-2 [2022-12-13 12:36:48,891 INFO L750 eck$LassoCheckResult]: Loop: 270#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 264#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 265#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; 266#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; 271#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); 267#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 268#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 269#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 270#L15-2 [2022-12-13 12:36:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-12-13 12:36:48,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596250677] [2022-12-13 12:36:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:48,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1603093127, now seen corresponding path program 1 times [2022-12-13 12:36:48,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306338269] [2022-12-13 12:36:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:48,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:48,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306338269] [2022-12-13 12:36:48,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306338269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:36:48,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:36:48,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:36:48,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739592125] [2022-12-13 12:36:48,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:36:48,937 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:36:48,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:48,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:36:48,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:36:48,938 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) [2022-12-13 12:36:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:48,960 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-12-13 12:36:48,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2022-12-13 12:36:48,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 12:36:48,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 7 transitions. [2022-12-13 12:36:48,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-12-13 12:36:48,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-12-13 12:36:48,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7 transitions. [2022-12-13 12:36:48,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:36:48,962 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-12-13 12:36:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 7 transitions. [2022-12-13 12:36:48,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-12-13 12:36:48,962 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) [2022-12-13 12:36:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-12-13 12:36:48,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-12-13 12:36:48,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:36:48,963 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-12-13 12:36:48,964 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 12:36:48,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2022-12-13 12:36:48,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 12:36:48,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:36:48,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:36:48,964 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:36:48,964 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 12:36:48,964 INFO L748 eck$LassoCheckResult]: Stem: 299#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 300#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; 297#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 298#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; 296#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 [2022-12-13 12:36:48,964 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 [2022-12-13 12:36:48,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash 889698581, now seen corresponding path program 1 times [2022-12-13 12:36:48,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602591284] [2022-12-13 12:36:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash 78, now seen corresponding path program 1 times [2022-12-13 12:36:48,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49877850] [2022-12-13 12:36:48,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:48,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:48,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1810852282, now seen corresponding path program 1 times [2022-12-13 12:36:48,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:48,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557511572] [2022-12-13 12:36:48,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:48,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:48,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:36:49,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 12:36:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:49,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:36:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:36:49,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:36:49 BoogieIcfgContainer [2022-12-13 12:36:49,097 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:36:49,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:36:49,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:36:49,098 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:36:49,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:36:47" (3/4) ... [2022-12-13 12:36:49,100 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 12:36:49,125 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:36:49,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:36:49,126 INFO L158 Benchmark]: Toolchain (without parser) took 1899.05ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 87.7MB in the beginning and 143.4MB in the end (delta: -55.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-12-13 12:36:49,126 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:36:49,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.02ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 78.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:36:49,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.62ms. Allocated memory is still 121.6MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:36:49,127 INFO L158 Benchmark]: Boogie Preprocessor took 13.39ms. Allocated memory is still 121.6MB. Free memory was 76.8MB in the beginning and 75.9MB in the end (delta: 967.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:36:49,127 INFO L158 Benchmark]: RCFGBuilder took 170.33ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 66.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:36:49,127 INFO L158 Benchmark]: BuchiAutomizer took 1524.63ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 66.7MB in the beginning and 144.5MB in the end (delta: -77.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:36:49,128 INFO L158 Benchmark]: Witness Printer took 27.44ms. Allocated memory is still 180.4MB. Free memory was 144.5MB in the beginning and 143.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:36:49,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 139.02ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 78.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.62ms. Allocated memory is still 121.6MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.39ms. Allocated memory is still 121.6MB. Free memory was 76.8MB in the beginning and 75.9MB in the end (delta: 967.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 170.33ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 66.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1524.63ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 66.7MB in the beginning and 144.5MB in the end (delta: -77.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.44ms. Allocated memory is still 180.4MB. Free memory was 144.5MB in the beginning and 143.4MB in the end (delta: 1.1MB). 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 1.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.1s 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: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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! [2022-12-13 12:36:49,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4a5f6d6-9267-4fa2-bbf8-7e7a957fba12/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)