./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 5e519f3a 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_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 20:45:23,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:45:23,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:45:23,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:45:23,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:45:23,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:45:23,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:45:23,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:45:23,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:45:23,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:45:23,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:45:23,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:45:23,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:45:23,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:45:23,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:45:23,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:45:23,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:45:23,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:45:23,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:45:23,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:45:23,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:45:23,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:45:23,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:45:23,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:45:23,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:45:23,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:45:23,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:45:23,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:45:23,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:45:23,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:45:23,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:45:23,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:45:23,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:45:23,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:45:23,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:45:23,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:45:23,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:45:23,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:45:23,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:45:23,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:45:23,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:45:23,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:45:23,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:45:23,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:45:23,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:45:23,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:45:23,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:45:23,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:45:23,392 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:45:23,392 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:45:23,392 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:45:23,392 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:45:23,393 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:45:23,394 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:45:23,394 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:45:23,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:45:23,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:45:23,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:45:23,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:45:23,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:45:23,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:45:23,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:45:23,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:45:23,396 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:45:23,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:45:23,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:45:23,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:45:23,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:45:23,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:45:23,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:45:23,399 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:45:23,399 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_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 [2022-11-02 20:45:23,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:45:23,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:45:23,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:45:23,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:45:23,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:45:23,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-restricted-15/NO_04.c [2022-11-02 20:45:23,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/data/03b9b7ebf/2f47cae3331b4ad68f1cda05d701dcee/FLAG61f53b1a7 [2022-11-02 20:45:24,437 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:45:24,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/sv-benchmarks/c/termination-restricted-15/NO_04.c [2022-11-02 20:45:24,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/data/03b9b7ebf/2f47cae3331b4ad68f1cda05d701dcee/FLAG61f53b1a7 [2022-11-02 20:45:24,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/data/03b9b7ebf/2f47cae3331b4ad68f1cda05d701dcee [2022-11-02 20:45:24,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:45:24,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:45:24,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:24,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:45:24,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:45:24,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4f0efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:24, skipping insertion in model container [2022-11-02 20:45:24,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:24" (1/1) ... [2022-11-02 20:45:24,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:45:24,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:45:25,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:25,038 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:45:25,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:25,073 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:45:25,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25 WrapperNode [2022-11-02 20:45:25,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:25,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:25,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:45:25,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:45:25,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,112 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-11-02 20:45:25,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:25,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:45:25,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:45:25,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:45:25,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:45:25,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:45:25,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:45:25,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:45:25,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (1/1) ... [2022-11-02 20:45:25,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:25,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:25,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:25,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:45:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:45:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:45:25,312 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:45:25,315 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:45:25,402 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:45:25,409 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:45:25,410 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:45:25,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:25 BoogieIcfgContainer [2022-11-02 20:45:25,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:45:25,413 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:45:25,414 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:45:25,418 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:45:25,419 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:45:25,419 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:45:24" (1/3) ... [2022-11-02 20:45:25,420 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39e029e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:45:25, skipping insertion in model container [2022-11-02 20:45:25,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:45:25,421 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:25" (2/3) ... [2022-11-02 20:45:25,421 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39e029e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:45:25, skipping insertion in model container [2022-11-02 20:45:25,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:45:25,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:25" (3/3) ... [2022-11-02 20:45:25,423 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_04.c [2022-11-02 20:45:25,483 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:45:25,483 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:45:25,483 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:45:25,484 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:45:25,484 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:45:25,484 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:45:25,484 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:45:25,484 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:45:25,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:25,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-02 20:45:25,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:25,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:25,515 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:45:25,515 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:45:25,515 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:45:25,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:25,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-02 20:45:25,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:25,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:25,520 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:45:25,521 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:45:25,530 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 7#L15-2true [2022-11-02 20:45:25,531 INFO L750 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 10#L18-2true assume !(main_~j~0#1 < main_~a~0#1); 12#L18-3true main_~i~0#1 := 1 + main_~i~0#1; 7#L15-2true [2022-11-02 20:45:25,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:45:25,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:25,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3160933] [2022-11-02 20:45:25,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:25,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:25,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:25,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:25,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:25,697 INFO L85 PathProgramCache]: Analyzing trace with hash 40983, now seen corresponding path program 1 times [2022-11-02 20:45:25,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:25,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189014025] [2022-11-02 20:45:25,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:25,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:25,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:25,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:25,756 INFO L85 PathProgramCache]: Analyzing trace with hash 28699925, now seen corresponding path program 1 times [2022-11-02 20:45:25,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:25,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447623368] [2022-11-02 20:45:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:25,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:25,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:25,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447623368] [2022-11-02 20:45:25,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447623368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:25,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:25,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:45:25,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714134632] [2022-11-02 20:45:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:26,002 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:45:26,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:45:26,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:45:26,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:45:26,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:45:26,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:45:26,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:45:26,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2022-11-02 20:45:26,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:45:26,006 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:45:26,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:26,037 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:26,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:26,144 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:45:26,145 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:45:26,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:26,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:26,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:45:26,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:26,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:45:26,208 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:45:26,208 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:45:26,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:26,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:26,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:26,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:45:26,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:26,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:45:26,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:45:26,291 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:45:26,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:26,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:26,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:26,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:45:26,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:26,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:45:26,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:26,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:26,419 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:26,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:45:26,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:45:26,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:26,740 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:45:26,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:26,748 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:45:26,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:45:26,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:45:26,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:45:26,749 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:45:26,749 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,749 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:45:26,749 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:45:26,749 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration1_Loop [2022-11-02 20:45:26,749 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:45:26,749 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:45:26,752 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:26,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:26,773 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:26,864 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:45:26,872 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:45:26,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:26,876 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:26,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:45:26,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:45:26,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:45:26,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:45:26,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:45:26,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:45:26,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:45:26,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:45:26,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:45:26,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:26,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:26,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:26,976 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:26,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:45:26,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:45:26,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:45:26,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:45:26,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:45:26,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:45:27,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:45:27,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:45:27,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:45:27,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:27,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:27,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:27,094 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:27,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:45:27,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:45:27,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:45:27,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:45:27,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:45:27,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:45:27,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:45:27,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:45:27,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:45:27,134 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:45:27,144 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:45:27,144 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:45:27,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:27,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:27,152 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:27,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:45:27,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:45:27,158 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:45:27,159 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:45:27,159 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-02 20:45:27,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:27,194 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:45:27,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:27,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:45:27,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:45:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:27,256 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:45:27,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:45:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:27,384 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:45:27,386 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,503 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 103 transitions. Complement of second has 9 states. [2022-11-02 20:45:27,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:45:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 65 transitions. [2022-11-02 20:45:27,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-02 20:45:27,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:27,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-02 20:45:27,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:27,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 65 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-02 20:45:27,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:27,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 103 transitions. [2022-11-02 20:45:27,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-02 20:45:27,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 38 states and 55 transitions. [2022-11-02 20:45:27,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-02 20:45:27,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-02 20:45:27,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 55 transitions. [2022-11-02 20:45:27,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:45:27,540 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 55 transitions. [2022-11-02 20:45:27,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 55 transitions. [2022-11-02 20:45:27,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2022-11-02 20:45:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2022-11-02 20:45:27,562 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2022-11-02 20:45:27,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:27,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:45:27,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:45:27,566 INFO L87 Difference]: Start difference. First operand 25 states and 36 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:45:27,597 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2022-11-02 20:45:27,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2022-11-02 20:45:27,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-02 20:45:27,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 26 transitions. [2022-11-02 20:45:27,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-02 20:45:27,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-11-02 20:45:27,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2022-11-02 20:45:27,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:27,601 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2022-11-02 20:45:27,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2022-11-02 20:45:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2022-11-02 20:45:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-02 20:45:27,603 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-02 20:45:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:45:27,606 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-02 20:45:27,607 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:45:27,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-11-02 20:45:27,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-02 20:45:27,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:27,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:27,608 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:45:27,608 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:45:27,609 INFO L748 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 189#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 195#L15-2 [2022-11-02 20:45:27,609 INFO L750 eck$LassoCheckResult]: Loop: 195#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 190#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 191#L20-2 assume !(main_~k~0#1 >= 0); 196#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 197#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 194#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 195#L15-2 [2022-11-02 20:45:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-02 20:45:27,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:27,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002427408] [2022-11-02 20:45:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:27,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:27,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:27,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:27,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1221756439, now seen corresponding path program 1 times [2022-11-02 20:45:27,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:27,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923099989] [2022-11-02 20:45:27,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:27,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:27,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:27,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923099989] [2022-11-02 20:45:27,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923099989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:27,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:27,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:45:27,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069276969] [2022-11-02 20:45:27,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:27,719 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:45:27,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:27,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:45:27,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:45:27,721 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:45:27,753 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2022-11-02 20:45:27,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2022-11-02 20:45:27,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-11-02 20:45:27,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 24 transitions. [2022-11-02 20:45:27,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-11-02 20:45:27,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-02 20:45:27,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2022-11-02 20:45:27,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:27,755 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-11-02 20:45:27,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2022-11-02 20:45:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2022-11-02 20:45:27,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-02 20:45:27,757 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-02 20:45:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:45:27,758 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-02 20:45:27,759 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:45:27,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2022-11-02 20:45:27,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-02 20:45:27,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:27,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:27,760 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:45:27,760 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:27,760 INFO L748 eck$LassoCheckResult]: Stem: 227#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 236#L15-2 [2022-11-02 20:45:27,760 INFO L750 eck$LassoCheckResult]: Loop: 236#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 229#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 230#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 231#L23-2 assume !(main_~l~0#1 < main_~b~0#1); 232#L23-3 main_~k~0#1 := main_~k~0#1 - 1; 237#L20-2 assume !(main_~k~0#1 >= 0); 233#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 234#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 235#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 236#L15-2 [2022-11-02 20:45:27,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,761 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-02 20:45:27,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:27,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277046801] [2022-11-02 20:45:27,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:27,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:27,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:27,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:27,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1352067341, now seen corresponding path program 1 times [2022-11-02 20:45:27,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:27,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639422522] [2022-11-02 20:45:27,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:27,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:27,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:27,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:27,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639422522] [2022-11-02 20:45:27,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639422522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:27,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:27,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:45:27,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048885516] [2022-11-02 20:45:27,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:27,856 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:45:27,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:27,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:45:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:45:27,865 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:45:27,912 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2022-11-02 20:45:27,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2022-11-02 20:45:27,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:45:27,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2022-11-02 20:45:27,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-02 20:45:27,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-02 20:45:27,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2022-11-02 20:45:27,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:27,915 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-11-02 20:45:27,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2022-11-02 20:45:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-02 20:45:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2022-11-02 20:45:27,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-11-02 20:45:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:45:27,921 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2022-11-02 20:45:27,921 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:45:27,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2022-11-02 20:45:27,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:45:27,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:27,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:27,922 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:45:27,922 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:45:27,923 INFO L748 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 265#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 272#L15-2 [2022-11-02 20:45:27,923 INFO L750 eck$LassoCheckResult]: Loop: 272#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 266#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 267#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 268#L23-2 assume !!(main_~l~0#1 < main_~b~0#1);main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1); 262#L25-2 assume !(main_~m~0#1 >= 0); 263#L25-3 main_~l~0#1 := 1 + main_~l~0#1; 273#L23-2 assume !(main_~l~0#1 < main_~b~0#1); 274#L23-3 main_~k~0#1 := main_~k~0#1 - 1; 275#L20-2 assume !(main_~k~0#1 >= 0); 269#L20-3 main_~j~0#1 := 1 + main_~j~0#1; 270#L18-2 assume !(main_~j~0#1 < main_~a~0#1); 271#L18-3 main_~i~0#1 := 1 + main_~i~0#1; 272#L15-2 [2022-11-02 20:45:27,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,924 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-11-02 20:45:27,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:27,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217046213] [2022-11-02 20:45:27,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:27,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:27,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:27,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:27,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:27,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1603093127, now seen corresponding path program 1 times [2022-11-02 20:45:27,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:27,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064055034] [2022-11-02 20:45:27,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:27,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:28,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:28,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064055034] [2022-11-02 20:45:28,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064055034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:28,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:28,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:45:28,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623611779] [2022-11-02 20:45:28,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:28,030 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:45:28,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:28,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:45:28,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:45:28,031 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:45:28,060 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-11-02 20:45:28,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2022-11-02 20:45:28,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:45:28,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 7 transitions. [2022-11-02 20:45:28,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-02 20:45:28,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 20:45:28,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7 transitions. [2022-11-02 20:45:28,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:28,062 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-02 20:45:28,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 7 transitions. [2022-11-02 20:45:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-02 20:45:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.0) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-02 20:45:28,063 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-02 20:45:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:45:28,064 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-02 20:45:28,064 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 20:45:28,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2022-11-02 20:45:28,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:45:28,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:28,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:28,065 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:45:28,065 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:45:28,066 INFO L748 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 297#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0; 301#L15-2 assume !!(main_~i~0#1 < 100);main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0; 299#L18-2 assume !!(main_~j~0#1 < main_~a~0#1);main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1); 300#L20-2 assume !!(main_~k~0#1 >= 0);main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0; 298#L23-2 assume !!(main_~l~0#1 < main_~b~0#1);main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1); 295#L25-2 [2022-11-02 20:45:28,066 INFO L750 eck$LassoCheckResult]: Loop: 295#L25-2 assume !!(main_~m~0#1 >= 0);main_~m~0#1 := main_~m~0#1 - 0; 295#L25-2 [2022-11-02 20:45:28,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash 889698581, now seen corresponding path program 1 times [2022-11-02 20:45:28,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:28,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881495717] [2022-11-02 20:45:28,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:28,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:28,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:28,079 INFO L85 PathProgramCache]: Analyzing trace with hash 78, now seen corresponding path program 1 times [2022-11-02 20:45:28,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:28,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33537340] [2022-11-02 20:45:28,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:28,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:28,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1810852282, now seen corresponding path program 1 times [2022-11-02 20:45:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:28,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601281783] [2022-11-02 20:45:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:28,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:28,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:28,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:45:28 BoogieIcfgContainer [2022-11-02 20:45:28,303 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:45:28,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:45:28,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:45:28,304 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:45:28,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:25" (3/4) ... [2022-11-02 20:45:28,307 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-02 20:45:28,370 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:45:28,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:45:28,387 INFO L158 Benchmark]: Toolchain (without parser) took 3585.41ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 78.0MB in the beginning and 111.1MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:28,387 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:28,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.71ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 93.5MB in the end (delta: -15.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:45:28,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.28ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 92.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:45:28,389 INFO L158 Benchmark]: Boogie Preprocessor took 17.94ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 91.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:28,389 INFO L158 Benchmark]: RCFGBuilder took 280.53ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 82.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:45:28,390 INFO L158 Benchmark]: BuchiAutomizer took 2889.84ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 82.0MB in the beginning and 113.2MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:28,390 INFO L158 Benchmark]: Witness Printer took 82.63ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:45:28,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.71ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 93.5MB in the end (delta: -15.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.28ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 92.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.94ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 91.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 280.53ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 82.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2889.84ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 82.0MB in the beginning and 113.2MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.63ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). 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 2.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. 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, 104 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 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: 62ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 25]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-02 20:45:28,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa1f498-26ff-4df6-a756-2346efc24414/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)