./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC --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 32bit --witnessprinter.graph.data.programhash e71cee6f8bfbdef490f31ccfbc80e5cb950e3b6d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:31:23,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:23,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:23,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:23,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:23,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:23,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:23,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:23,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:23,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:23,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:23,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:23,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:23,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:23,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:23,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:23,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:23,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:23,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:23,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:23,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:23,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:23,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:23,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:23,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:23,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:23,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:23,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:23,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:23,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:23,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:23,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:23,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:23,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:23,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:23,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:23,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:23,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:23,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:23,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:23,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:23,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:31:23,524 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:23,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:23,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:23,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:23,527 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:23,527 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:31:23,527 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:31:23,527 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:31:23,528 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:31:23,528 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:31:23,529 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:31:23,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:23,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:23,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:31:23,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:23,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:23,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:23,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:31:23,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:31:23,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:31:23,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:23,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:23,531 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:31:23,532 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:23,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:31:23,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:23,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:23,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:23,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:23,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:23,536 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:31:23,536 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_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e71cee6f8bfbdef490f31ccfbc80e5cb950e3b6d [2021-10-11 00:31:23,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:23,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:23,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:23,827 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:23,829 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:23,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2021-10-11 00:31:23,907 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/data/51b79db4b/e72932291c6a4fe8bea79781c05014b8/FLAGe495a8a88 [2021-10-11 00:31:24,501 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:24,501 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2021-10-11 00:31:24,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/data/51b79db4b/e72932291c6a4fe8bea79781c05014b8/FLAGe495a8a88 [2021-10-11 00:31:24,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/data/51b79db4b/e72932291c6a4fe8bea79781c05014b8 [2021-10-11 00:31:24,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:24,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:24,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:24,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:24,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:24,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:24" (1/1) ... [2021-10-11 00:31:24,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d00faf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:24, skipping insertion in model container [2021-10-11 00:31:24,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:24" (1/1) ... [2021-10-11 00:31:24,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:24,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:25,163 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i[814,827] [2021-10-11 00:31:25,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:25,186 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:25,198 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i[814,827] [2021-10-11 00:31:25,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:25,218 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:25,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25 WrapperNode [2021-10-11 00:31:25,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:25,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:25,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:25,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:25,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:25,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:25,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:25,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:25,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... [2021-10-11 00:31:25,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:25,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:25,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:25,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:25,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:31:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:31:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:31:25,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:25,657 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 00:31:25,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:25 BoogieIcfgContainer [2021-10-11 00:31:25,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:25,660 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:31:25,661 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:31:25,664 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:31:25,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:25,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:31:24" (1/3) ... [2021-10-11 00:31:25,666 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e124a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:25, skipping insertion in model container [2021-10-11 00:31:25,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:25,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:25" (2/3) ... [2021-10-11 00:31:25,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e124a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:25, skipping insertion in model container [2021-10-11 00:31:25,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:25,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:25" (3/3) ... [2021-10-11 00:31:25,669 INFO L389 chiAutomizerObserver]: Analyzing ICFG array_assert_loop_dep.i [2021-10-11 00:31:25,721 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:31:25,721 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:31:25,721 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:31:25,722 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:25,722 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:25,722 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:31:25,722 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:25,722 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:31:25,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2021-10-11 00:31:25,783 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-11 00:31:25,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:25,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:25,790 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:31:25,790 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:31:25,790 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:31:25,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2021-10-11 00:31:25,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-11 00:31:25,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:25,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:25,793 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:31:25,793 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:31:25,800 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 9#L-1true havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 3#L18-3true [2021-10-11 00:31:25,800 INFO L796 eck$LassoCheckResult]: Loop: 3#L18-3true assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 4#L18-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3#L18-3true [2021-10-11 00:31:25,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:25,806 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-11 00:31:25,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:25,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063739992] [2021-10-11 00:31:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:25,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:25,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:25,983 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:25,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-11 00:31:25,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:25,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223277894] [2021-10-11 00:31:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:26,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:26,029 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:26,032 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:26,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:26,035 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-11 00:31:26,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:26,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96818340] [2021-10-11 00:31:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:26,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:26,108 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:26,117 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:26,429 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-10-11 00:31:26,522 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:26,523 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:26,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:26,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:26,523 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:26,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:26,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:26,524 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:26,524 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_assert_loop_dep.i_Iteration1_Lasso [2021-10-11 00:31:26,524 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:26,524 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:26,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:26,960 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:26,965 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:26,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:26,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:26,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:26,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:26,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:26,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:26,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:26,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:26,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:27,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:27,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:27,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:27,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,098 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:27,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:27,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:27,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:27,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:27,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:27,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:31:27,294 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:31:27,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:27,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,427 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:31:27,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:27,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:27,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:27,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:27,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:31:27,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:27,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:31:27,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:27,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:27,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:27,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:27,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:27,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:31:27,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:31:27,803 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:27,835 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-11 00:31:27,835 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:27,879 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:27,889 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-11 00:31:27,889 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:27,890 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199999 Supporting invariants [] [2021-10-11 00:31:27,936 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-11 00:31:27,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:27,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:31:27,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:27,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:31:27,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:28,022 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:31:28,023 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2021-10-11 00:31:28,065 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 29 states and 41 transitions. Complement of second has 8 states. [2021-10-11 00:31:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:31:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:31:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-11 00:31:28,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-11 00:31:28,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:28,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:31:28,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:28,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-11 00:31:28,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:28,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2021-10-11 00:31:28,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:31:28,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 12 states and 16 transitions. [2021-10-11 00:31:28,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-11 00:31:28,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-11 00:31:28,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-11 00:31:28,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:28,080 INFO L692 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-11 00:31:28,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-11 00:31:28,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 00:31:28,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 00:31:28,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-11 00:31:28,104 INFO L715 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-11 00:31:28,104 INFO L595 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-11 00:31:28,104 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:31:28,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-11 00:31:28,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-11 00:31:28,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:28,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:28,105 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:31:28,106 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:28,106 INFO L794 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 112#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 113#L18-3 assume !(main_~i~0 < 100000); 114#L18-4 main_~i~0 := 0; 122#L22-3 [2021-10-11 00:31:28,106 INFO L796 eck$LassoCheckResult]: Loop: 122#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 121#L13 assume !(0 == __VERIFIER_assert_~cond); 117#L13-3 havoc main_#t~mem5; 118#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 123#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 122#L22-3 [2021-10-11 00:31:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-11 00:31:28,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:28,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672440419] [2021-10-11 00:31:28,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:28,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672440419] [2021-10-11 00:31:28,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:28,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:31:28,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678262190] [2021-10-11 00:31:28,149 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:31:28,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:28,150 INFO L82 PathProgramCache]: Analyzing trace with hash 51750045, now seen corresponding path program 1 times [2021-10-11 00:31:28,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:28,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180232927] [2021-10-11 00:31:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:28,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:28,169 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:28,171 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:28,277 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-10-11 00:31:28,387 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-10-11 00:31:28,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:28,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:31:28,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:31:28,392 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 3 states. [2021-10-11 00:31:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:28,421 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-10-11 00:31:28,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:31:28,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2021-10-11 00:31:28,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:28,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 19 transitions. [2021-10-11 00:31:28,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-11 00:31:28,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-11 00:31:28,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2021-10-11 00:31:28,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:28,425 INFO L692 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-11 00:31:28,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2021-10-11 00:31:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-11 00:31:28,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:31:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-11 00:31:28,427 INFO L715 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-11 00:31:28,427 INFO L595 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-11 00:31:28,428 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:31:28,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-10-11 00:31:28,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:28,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:28,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:28,429 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:28,429 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:28,430 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 149#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 150#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 151#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 152#L18-3 assume !(main_~i~0 < 100000); 153#L18-4 main_~i~0 := 0; 159#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 163#L13 assume !(0 == __VERIFIER_assert_~cond); 162#L13-3 havoc main_#t~mem5; 160#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 161#L22-2 [2021-10-11 00:31:28,430 INFO L796 eck$LassoCheckResult]: Loop: 161#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 158#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 157#L13 assume !(0 == __VERIFIER_assert_~cond); 154#L13-3 havoc main_#t~mem5; 155#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 161#L22-2 [2021-10-11 00:31:28,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:28,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1436006135, now seen corresponding path program 1 times [2021-10-11 00:31:28,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:28,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713263244] [2021-10-11 00:31:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:28,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713263244] [2021-10-11 00:31:28,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670506521] [2021-10-11 00:31:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:28,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:31:28,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:28,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:31:28,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-11 00:31:28,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662318775] [2021-10-11 00:31:28,567 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:31:28,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:28,569 INFO L82 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 2 times [2021-10-11 00:31:28,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:28,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348400858] [2021-10-11 00:31:28,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:28,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:28,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:28,604 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:28,807 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-10-11 00:31:28,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:28,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:28,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:28,810 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand 5 states. [2021-10-11 00:31:28,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:28,863 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2021-10-11 00:31:28,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:31:28,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 26 transitions. [2021-10-11 00:31:28,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:28,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 26 transitions. [2021-10-11 00:31:28,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-11 00:31:28,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-11 00:31:28,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 26 transitions. [2021-10-11 00:31:28,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:28,874 INFO L692 BuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-10-11 00:31:28,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 26 transitions. [2021-10-11 00:31:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2021-10-11 00:31:28,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-10-11 00:31:28,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-10-11 00:31:28,878 INFO L715 BuchiCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-10-11 00:31:28,878 INFO L595 BuchiCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-10-11 00:31:28,878 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:31:28,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 24 transitions. [2021-10-11 00:31:28,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:28,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:28,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:28,881 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-11 00:31:28,881 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:28,882 INFO L794 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 223#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 224#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 225#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 226#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 227#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 238#L18-3 assume !(main_~i~0 < 100000); 234#L18-4 main_~i~0 := 0; 232#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 233#L13 assume !(0 == __VERIFIER_assert_~cond); 244#L13-3 havoc main_#t~mem5; 243#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 236#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 237#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 231#L13 assume !(0 == __VERIFIER_assert_~cond); 228#L13-3 havoc main_#t~mem5; 229#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 235#L22-2 [2021-10-11 00:31:28,882 INFO L796 eck$LassoCheckResult]: Loop: 235#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 242#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 241#L13 assume !(0 == __VERIFIER_assert_~cond); 240#L13-3 havoc main_#t~mem5; 239#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 235#L22-2 [2021-10-11 00:31:28,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:28,882 INFO L82 PathProgramCache]: Analyzing trace with hash -974790727, now seen corresponding path program 1 times [2021-10-11 00:31:28,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:28,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358103622] [2021-10-11 00:31:28,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 00:31:28,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358103622] [2021-10-11 00:31:28,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931250325] [2021-10-11 00:31:28,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:29,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:31:29,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 00:31:29,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:31:29,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-11 00:31:29,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279242778] [2021-10-11 00:31:29,085 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:31:29,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:29,085 INFO L82 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 3 times [2021-10-11 00:31:29,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:29,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971210066] [2021-10-11 00:31:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:29,092 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:29,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:29,099 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:29,272 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-10-11 00:31:29,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:29,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:31:29,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:31:29,274 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. cyclomatic complexity: 4 Second operand 6 states. [2021-10-11 00:31:29,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:29,330 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-10-11 00:31:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:31:29,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 33 transitions. [2021-10-11 00:31:29,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:29,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 33 transitions. [2021-10-11 00:31:29,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-11 00:31:29,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-11 00:31:29,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 33 transitions. [2021-10-11 00:31:29,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:29,333 INFO L692 BuchiCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-11 00:31:29,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 33 transitions. [2021-10-11 00:31:29,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-10-11 00:31:29,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-10-11 00:31:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-10-11 00:31:29,336 INFO L715 BuchiCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-11 00:31:29,336 INFO L595 BuchiCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-11 00:31:29,336 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-11 00:31:29,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 31 transitions. [2021-10-11 00:31:29,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:29,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:29,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:29,338 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2021-10-11 00:31:29,338 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:29,338 INFO L794 eck$LassoCheckResult]: Stem: 340#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 333#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 334#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 335#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 336#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 337#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 341#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 350#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 349#L18-3 assume !(main_~i~0 < 100000); 345#L18-4 main_~i~0 := 0; 344#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 342#L13 assume !(0 == __VERIFIER_assert_~cond); 343#L13-3 havoc main_#t~mem5; 357#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 347#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 348#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 361#L13 assume !(0 == __VERIFIER_assert_~cond); 360#L13-3 havoc main_#t~mem5; 355#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 356#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 359#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 358#L13 assume !(0 == __VERIFIER_assert_~cond); 338#L13-3 havoc main_#t~mem5; 339#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 346#L22-2 [2021-10-11 00:31:29,338 INFO L796 eck$LassoCheckResult]: Loop: 346#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 354#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 353#L13 assume !(0 == __VERIFIER_assert_~cond); 352#L13-3 havoc main_#t~mem5; 351#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 346#L22-2 [2021-10-11 00:31:29,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:29,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1970397435, now seen corresponding path program 2 times [2021-10-11 00:31:29,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:29,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474060128] [2021-10-11 00:31:29,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 00:31:29,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474060128] [2021-10-11 00:31:29,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611493318] [2021-10-11 00:31:29,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:29,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:31:29,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:31:29,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:31:29,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 00:31:29,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:31:29,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-11 00:31:29,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981012142] [2021-10-11 00:31:29,534 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:31:29,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:29,534 INFO L82 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 4 times [2021-10-11 00:31:29,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:29,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74650913] [2021-10-11 00:31:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:29,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:29,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:29,546 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:29,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:29,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:31:29,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:31:29,676 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. cyclomatic complexity: 4 Second operand 7 states. [2021-10-11 00:31:29,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:29,748 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2021-10-11 00:31:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:31:29,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 40 transitions. [2021-10-11 00:31:29,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:29,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 38 states and 40 transitions. [2021-10-11 00:31:29,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-11 00:31:29,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-11 00:31:29,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 40 transitions. [2021-10-11 00:31:29,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:29,757 INFO L692 BuchiCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-10-11 00:31:29,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 40 transitions. [2021-10-11 00:31:29,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-10-11 00:31:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 00:31:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-10-11 00:31:29,764 INFO L715 BuchiCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-11 00:31:29,764 INFO L595 BuchiCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-11 00:31:29,764 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-11 00:31:29,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 38 transitions. [2021-10-11 00:31:29,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:29,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:29,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:29,771 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2021-10-11 00:31:29,771 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:29,771 INFO L794 eck$LassoCheckResult]: Stem: 487#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(24); 483#L-1 havoc main_#res;havoc main_#t~post3, main_#t~mem5, main_#t~post4, main_~i~0, main_~#a~0.base, main_~#a~0.offset;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);main_~i~0 := 0; 479#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 480#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 481#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 482#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 486#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 497#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 496#L18-3 assume !!(main_~i~0 < 100000);call write~int(10, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 495#L18-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 494#L18-3 assume !(main_~i~0 < 100000); 490#L18-4 main_~i~0 := 0; 491#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 514#L13 assume !(0 == __VERIFIER_assert_~cond); 513#L13-3 havoc main_#t~mem5; 512#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 493#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 489#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 488#L13 assume !(0 == __VERIFIER_assert_~cond); 484#L13-3 havoc main_#t~mem5; 485#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 492#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 511#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 510#L13 assume !(0 == __VERIFIER_assert_~cond); 509#L13-3 havoc main_#t~mem5; 508#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 507#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 506#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 505#L13 assume !(0 == __VERIFIER_assert_~cond); 504#L13-3 havoc main_#t~mem5; 503#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 499#L22-2 [2021-10-11 00:31:29,771 INFO L796 eck$LassoCheckResult]: Loop: 499#L22-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 502#L22-3 assume !!(main_~i~0 < 100000);call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if 10 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 501#L13 assume !(0 == __VERIFIER_assert_~cond); 500#L13-3 havoc main_#t~mem5; 498#L25 assume 15000 != 1 + main_~i~0;call write~int(20, main_~#a~0.base, main_~#a~0.offset + 4 * (1 + main_~i~0), 4); 499#L22-2 [2021-10-11 00:31:29,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:29,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1016089675, now seen corresponding path program 3 times [2021-10-11 00:31:29,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:29,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054915055] [2021-10-11 00:31:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-11 00:31:29,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054915055] [2021-10-11 00:31:29,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122494890] [2021-10-11 00:31:29,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76523a05-be58-4965-bde2-bd741ae0228a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:31:29,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-11 00:31:29,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:31:29,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:31:29,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:30,012 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-11 00:31:30,013 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:31:30,015 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:31:30,016 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:31:30,016 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:12 [2021-10-11 00:31:30,055 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-11 00:31:30,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:31:30,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2021-10-11 00:31:30,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451481637] [2021-10-11 00:31:30,056 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:31:30,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:30,057 INFO L82 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 5 times [2021-10-11 00:31:30,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:30,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101618447] [2021-10-11 00:31:30,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:30,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:30,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:30,068 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:30,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:30,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:30,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:31:30,201 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. cyclomatic complexity: 4 Second operand 5 states. [2021-10-11 00:31:30,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:30,242 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-10-11 00:31:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:31:30,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2021-10-11 00:31:30,243 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:30,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-10-11 00:31:30,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:31:30,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:31:30,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:31:30,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:30,244 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:30,244 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:30,244 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:30,244 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-11 00:31:30,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:31:30,244 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:30,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:31:30,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:31:30 BoogieIcfgContainer [2021-10-11 00:31:30,250 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:31:30,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:31:30,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:31:30,251 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:31:30,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:25" (3/4) ... [2021-10-11 00:31:30,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:31:30,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:31:30,257 INFO L168 Benchmark]: Toolchain (without parser) took 5362.50 ms. Allocated memory was 100.7 MB in the beginning and 157.3 MB in the end (delta: 56.6 MB). Free memory was 70.8 MB in the beginning and 82.4 MB in the end (delta: -11.6 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:30,263 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 100.7 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:30,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.95 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 70.6 MB in the beginning and 105.1 MB in the end (delta: -34.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:30,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.77 ms. Allocated memory is still 130.0 MB. Free memory was 105.1 MB in the beginning and 103.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:30,265 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 ms. Allocated memory is still 130.0 MB. Free memory was 103.8 MB in the beginning and 102.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:30,265 INFO L168 Benchmark]: RCFGBuilder took 372.67 ms. Allocated memory is still 130.0 MB. Free memory was 102.6 MB in the beginning and 90.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:30,270 INFO L168 Benchmark]: BuchiAutomizer took 4589.49 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 90.0 MB in the beginning and 82.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:30,270 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 157.3 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:30,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 100.7 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 324.95 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 70.6 MB in the beginning and 105.1 MB in the end (delta: -34.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.77 ms. Allocated memory is still 130.0 MB. Free memory was 105.1 MB in the beginning and 103.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.90 ms. Allocated memory is still 130.0 MB. Free memory was 103.8 MB in the beginning and 102.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 372.67 ms. Allocated memory is still 130.0 MB. Free memory was 102.6 MB in the beginning and 90.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4589.49 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 90.0 MB in the beginning and 82.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.90 ms. Allocated memory is still 157.3 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (5 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199999 and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 7 iterations. TraceHistogramMax:4. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 5. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 42 SDtfs, 74 SDslu, 42 SDs, 0 SdLazy, 120 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU5 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital153 mio100 ax100 hnf100 lsp94 ukn56 mio100 lsp41 div100 bol100 ite100 ukn100 eq152 hnf92 smp100 dnf100 smp100 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...