./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/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_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57986f5df1647173a809f7445e253a7d11975932 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:23:13,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:13,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:13,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:13,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:13,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:13,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:13,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:13,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:13,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:13,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:13,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:13,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:13,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:13,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:13,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:13,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:13,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:13,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:13,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:13,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:13,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:13,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:13,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:13,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:13,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:13,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:13,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:13,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:13,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:13,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:13,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:13,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:13,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:13,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:13,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:13,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:13,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:13,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:13,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:13,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:13,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:23:13,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:13,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:13,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:13,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:13,626 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:13,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:13,627 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:23:13,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:13,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:23:13,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:13,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:23:13,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:13,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:23:13,629 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:23:13,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:13,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:13,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:23:13,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:13,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:13,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:13,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:13,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:13,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:13,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:23:13,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:13,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:23:13,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:23:13,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:13,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_84b9370c-793f-46c8-8f5b-12b13404c668/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57986f5df1647173a809f7445e253a7d11975932 [2021-10-11 00:23:13,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:13,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:14,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:14,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:14,005 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:14,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem01_label05.c [2021-10-11 00:23:14,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/data/94a13de22/31dae8f17e034f22ac038545deb03551/FLAG9612750cf [2021-10-11 00:23:14,712 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:14,713 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/sv-benchmarks/c/eca-rers2012/Problem01_label05.c [2021-10-11 00:23:14,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/data/94a13de22/31dae8f17e034f22ac038545deb03551/FLAG9612750cf [2021-10-11 00:23:14,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/data/94a13de22/31dae8f17e034f22ac038545deb03551 [2021-10-11 00:23:14,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:14,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:14,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:14,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:14,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:14,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:14" (1/1) ... [2021-10-11 00:23:14,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c28831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:14, skipping insertion in model container [2021-10-11 00:23:14,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:14" (1/1) ... [2021-10-11 00:23:14,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:15,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:15,433 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_84b9370c-793f-46c8-8f5b-12b13404c668/sv-benchmarks/c/eca-rers2012/Problem01_label05.c[17240,17253] [2021-10-11 00:23:15,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:15,475 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:15,599 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_84b9370c-793f-46c8-8f5b-12b13404c668/sv-benchmarks/c/eca-rers2012/Problem01_label05.c[17240,17253] [2021-10-11 00:23:15,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:15,647 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:15,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15 WrapperNode [2021-10-11 00:23:15,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:15,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:15,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:15,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:15,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:15,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:15,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:15,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:15,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... [2021-10-11 00:23:15,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:15,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:15,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:15,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:15,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:23:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:23:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:17,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:17,269 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:23:17,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:17 BoogieIcfgContainer [2021-10-11 00:23:17,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:17,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:17,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:17,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:17,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:14" (1/3) ... [2021-10-11 00:23:17,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c442246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:17, skipping insertion in model container [2021-10-11 00:23:17,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:15" (2/3) ... [2021-10-11 00:23:17,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c442246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:17, skipping insertion in model container [2021-10-11 00:23:17,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:17" (3/3) ... [2021-10-11 00:23:17,285 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2021-10-11 00:23:17,305 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:17,309 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:23:17,322 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:23:17,367 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:17,368 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:23:17,368 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:17,373 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:17,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:17,374 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:17,374 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:17,374 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:17,395 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2021-10-11 00:23:17,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-10-11 00:23:17,406 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:17,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:17,407 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:17,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:17,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1877985287, now seen corresponding path program 1 times [2021-10-11 00:23:17,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:17,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133401727] [2021-10-11 00:23:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:17,877 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 00:23:17,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133401727] [2021-10-11 00:23:17,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:17,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:23:17,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478505467] [2021-10-11 00:23:17,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:17,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:17,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:17,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:17,904 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2021-10-11 00:23:18,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:18,881 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-10-11 00:23:18,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:18,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2021-10-11 00:23:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:18,915 INFO L225 Difference]: With dead ends: 528 [2021-10-11 00:23:18,929 INFO L226 Difference]: Without dead ends: 266 [2021-10-11 00:23:18,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:18,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-11 00:23:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-11 00:23:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-10-11 00:23:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-10-11 00:23:19,033 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 94 [2021-10-11 00:23:19,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:19,034 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-10-11 00:23:19,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-10-11 00:23:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-11 00:23:19,048 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:19,049 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:19,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:23:19,049 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:19,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1993122394, now seen corresponding path program 1 times [2021-10-11 00:23:19,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:19,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256771579] [2021-10-11 00:23:19,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:19,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256771579] [2021-10-11 00:23:19,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:19,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:23:19,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108083620] [2021-10-11 00:23:19,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:19,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:19,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:19,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:19,202 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2021-10-11 00:23:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:19,908 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-10-11 00:23:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:19,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2021-10-11 00:23:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:19,914 INFO L225 Difference]: With dead ends: 792 [2021-10-11 00:23:19,922 INFO L226 Difference]: Without dead ends: 528 [2021-10-11 00:23:19,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:19,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-10-11 00:23:19,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-10-11 00:23:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2021-10-11 00:23:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2021-10-11 00:23:19,970 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 100 [2021-10-11 00:23:19,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:19,970 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2021-10-11 00:23:19,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2021-10-11 00:23:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-11 00:23:19,973 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:19,974 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:19,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:23:19,974 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:19,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:19,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1582856459, now seen corresponding path program 1 times [2021-10-11 00:23:19,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:19,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70578595] [2021-10-11 00:23:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:20,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70578595] [2021-10-11 00:23:20,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:20,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:20,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020438830] [2021-10-11 00:23:20,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:20,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:20,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:20,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:20,180 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 4 states. [2021-10-11 00:23:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:21,171 INFO L93 Difference]: Finished difference Result 1316 states and 1742 transitions. [2021-10-11 00:23:21,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:21,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2021-10-11 00:23:21,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:21,177 INFO L225 Difference]: With dead ends: 1316 [2021-10-11 00:23:21,178 INFO L226 Difference]: Without dead ends: 790 [2021-10-11 00:23:21,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:21,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-10-11 00:23:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2021-10-11 00:23:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2021-10-11 00:23:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1000 transitions. [2021-10-11 00:23:21,212 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1000 transitions. Word has length 128 [2021-10-11 00:23:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:21,212 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 1000 transitions. [2021-10-11 00:23:21,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:21,213 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1000 transitions. [2021-10-11 00:23:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-11 00:23:21,216 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:21,217 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:21,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:23:21,217 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:21,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:21,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1972306369, now seen corresponding path program 1 times [2021-10-11 00:23:21,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:21,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639602589] [2021-10-11 00:23:21,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-11 00:23:21,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639602589] [2021-10-11 00:23:21,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:21,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:23:21,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103258940] [2021-10-11 00:23:21,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:21,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:21,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:21,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:21,301 INFO L87 Difference]: Start difference. First operand 790 states and 1000 transitions. Second operand 3 states. [2021-10-11 00:23:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:21,908 INFO L93 Difference]: Finished difference Result 1840 states and 2320 transitions. [2021-10-11 00:23:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:21,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2021-10-11 00:23:21,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:21,914 INFO L225 Difference]: With dead ends: 1840 [2021-10-11 00:23:21,915 INFO L226 Difference]: Without dead ends: 1052 [2021-10-11 00:23:21,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:21,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-10-11 00:23:21,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 790. [2021-10-11 00:23:21,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2021-10-11 00:23:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 988 transitions. [2021-10-11 00:23:21,938 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 988 transitions. Word has length 132 [2021-10-11 00:23:21,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:21,938 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 988 transitions. [2021-10-11 00:23:21,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 988 transitions. [2021-10-11 00:23:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-10-11 00:23:21,941 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:21,941 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:21,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:23:21,942 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:21,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:21,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1940653961, now seen corresponding path program 1 times [2021-10-11 00:23:21,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:21,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791177216] [2021-10-11 00:23:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-11 00:23:22,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791177216] [2021-10-11 00:23:22,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:22,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:23:22,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974488241] [2021-10-11 00:23:22,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:22,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:22,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:22,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:22,038 INFO L87 Difference]: Start difference. First operand 790 states and 988 transitions. Second operand 3 states. [2021-10-11 00:23:22,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:22,611 INFO L93 Difference]: Finished difference Result 1971 states and 2439 transitions. [2021-10-11 00:23:22,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:22,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2021-10-11 00:23:22,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:22,619 INFO L225 Difference]: With dead ends: 1971 [2021-10-11 00:23:22,619 INFO L226 Difference]: Without dead ends: 1052 [2021-10-11 00:23:22,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:22,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-10-11 00:23:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2021-10-11 00:23:22,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2021-10-11 00:23:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1192 transitions. [2021-10-11 00:23:22,646 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1192 transitions. Word has length 136 [2021-10-11 00:23:22,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:22,647 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1192 transitions. [2021-10-11 00:23:22,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:22,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1192 transitions. [2021-10-11 00:23:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-10-11 00:23:22,650 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:22,651 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:22,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:23:22,651 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:22,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1280324437, now seen corresponding path program 1 times [2021-10-11 00:23:22,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:22,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798376892] [2021-10-11 00:23:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-11 00:23:22,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798376892] [2021-10-11 00:23:22,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:22,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:22,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562707345] [2021-10-11 00:23:22,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:22,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:22,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:22,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:22,727 INFO L87 Difference]: Start difference. First operand 1052 states and 1192 transitions. Second operand 3 states. [2021-10-11 00:23:23,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:23,262 INFO L93 Difference]: Finished difference Result 2757 states and 3121 transitions. [2021-10-11 00:23:23,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:23,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2021-10-11 00:23:23,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:23,272 INFO L225 Difference]: With dead ends: 2757 [2021-10-11 00:23:23,273 INFO L226 Difference]: Without dead ends: 1707 [2021-10-11 00:23:23,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-10-11 00:23:23,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1314. [2021-10-11 00:23:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2021-10-11 00:23:23,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1490 transitions. [2021-10-11 00:23:23,309 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1490 transitions. Word has length 145 [2021-10-11 00:23:23,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:23,309 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1490 transitions. [2021-10-11 00:23:23,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:23,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1490 transitions. [2021-10-11 00:23:23,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-10-11 00:23:23,313 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:23,313 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:23,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:23:23,314 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:23,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:23,314 INFO L82 PathProgramCache]: Analyzing trace with hash 592439003, now seen corresponding path program 1 times [2021-10-11 00:23:23,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:23,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272866436] [2021-10-11 00:23:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-11 00:23:23,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272866436] [2021-10-11 00:23:23,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:23,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:23:23,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743340321] [2021-10-11 00:23:23,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:23,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:23,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:23,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:23,417 INFO L87 Difference]: Start difference. First operand 1314 states and 1490 transitions. Second operand 3 states. [2021-10-11 00:23:23,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:23,867 INFO L93 Difference]: Finished difference Result 2888 states and 3281 transitions. [2021-10-11 00:23:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:23,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2021-10-11 00:23:23,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:23,876 INFO L225 Difference]: With dead ends: 2888 [2021-10-11 00:23:23,876 INFO L226 Difference]: Without dead ends: 1576 [2021-10-11 00:23:23,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:23,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-10-11 00:23:23,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-10-11 00:23:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2021-10-11 00:23:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1777 transitions. [2021-10-11 00:23:23,954 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1777 transitions. Word has length 161 [2021-10-11 00:23:23,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:23,956 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1777 transitions. [2021-10-11 00:23:23,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:23,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1777 transitions. [2021-10-11 00:23:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-10-11 00:23:23,960 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:23,960 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:23,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:23:23,961 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:23,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1123380219, now seen corresponding path program 1 times [2021-10-11 00:23:23,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:23,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101936655] [2021-10-11 00:23:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-11 00:23:24,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101936655] [2021-10-11 00:23:24,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712931866] [2021-10-11 00:23:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:24,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:24,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-11 00:23:24,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:23:24,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:23:24,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177797343] [2021-10-11 00:23:24,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:24,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:24,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:24,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:24,730 INFO L87 Difference]: Start difference. First operand 1576 states and 1777 transitions. Second operand 3 states. [2021-10-11 00:23:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:25,284 INFO L93 Difference]: Finished difference Result 3543 states and 4023 transitions. [2021-10-11 00:23:25,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:25,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2021-10-11 00:23:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:25,297 INFO L225 Difference]: With dead ends: 3543 [2021-10-11 00:23:25,297 INFO L226 Difference]: Without dead ends: 1969 [2021-10-11 00:23:25,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:25,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-10-11 00:23:25,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2021-10-11 00:23:25,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2021-10-11 00:23:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2057 transitions. [2021-10-11 00:23:25,344 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2057 transitions. Word has length 177 [2021-10-11 00:23:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:25,345 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2057 transitions. [2021-10-11 00:23:25,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2057 transitions. [2021-10-11 00:23:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-10-11 00:23:25,349 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:25,349 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:25,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-11 00:23:25,563 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:25,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:25,563 INFO L82 PathProgramCache]: Analyzing trace with hash 317184054, now seen corresponding path program 1 times [2021-10-11 00:23:25,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:25,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545338956] [2021-10-11 00:23:25,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:25,710 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-11 00:23:25,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545338956] [2021-10-11 00:23:25,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192609673] [2021-10-11 00:23:25,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:25,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:25,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-11 00:23:26,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:23:26,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:23:26,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763627455] [2021-10-11 00:23:26,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:26,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:26,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:26,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:26,115 INFO L87 Difference]: Start difference. First operand 1838 states and 2057 transitions. Second operand 3 states. [2021-10-11 00:23:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:26,621 INFO L93 Difference]: Finished difference Result 4198 states and 4722 transitions. [2021-10-11 00:23:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:26,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2021-10-11 00:23:26,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:26,634 INFO L225 Difference]: With dead ends: 4198 [2021-10-11 00:23:26,634 INFO L226 Difference]: Without dead ends: 2362 [2021-10-11 00:23:26,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-10-11 00:23:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2021-10-11 00:23:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2021-10-11 00:23:26,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2354 transitions. [2021-10-11 00:23:26,682 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2354 transitions. Word has length 183 [2021-10-11 00:23:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:26,683 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2354 transitions. [2021-10-11 00:23:26,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:26,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2354 transitions. [2021-10-11 00:23:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-10-11 00:23:26,688 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:26,688 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:26,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:26,903 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:26,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:26,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1566686570, now seen corresponding path program 1 times [2021-10-11 00:23:26,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:26,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748582411] [2021-10-11 00:23:26,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-10-11 00:23:27,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748582411] [2021-10-11 00:23:27,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161749745] [2021-10-11 00:23:27,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:27,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:27,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-11 00:23:27,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:23:27,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:23:27,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099817935] [2021-10-11 00:23:27,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:27,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:27,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:27,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:27,383 INFO L87 Difference]: Start difference. First operand 2100 states and 2354 transitions. Second operand 3 states. [2021-10-11 00:23:27,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:27,939 INFO L93 Difference]: Finished difference Result 4984 states and 5570 transitions. [2021-10-11 00:23:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:27,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2021-10-11 00:23:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:27,954 INFO L225 Difference]: With dead ends: 4984 [2021-10-11 00:23:27,954 INFO L226 Difference]: Without dead ends: 2886 [2021-10-11 00:23:27,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:27,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-10-11 00:23:28,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2755. [2021-10-11 00:23:28,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2021-10-11 00:23:28,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3057 transitions. [2021-10-11 00:23:28,022 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3057 transitions. Word has length 204 [2021-10-11 00:23:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:28,023 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3057 transitions. [2021-10-11 00:23:28,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3057 transitions. [2021-10-11 00:23:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-10-11 00:23:28,029 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:28,029 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:28,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-11 00:23:28,251 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:28,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:28,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1752541612, now seen corresponding path program 1 times [2021-10-11 00:23:28,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:28,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900410166] [2021-10-11 00:23:28,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-10-11 00:23:28,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900410166] [2021-10-11 00:23:28,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129602334] [2021-10-11 00:23:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:28,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:28,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:28,738 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-11 00:23:28,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:23:28,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:23:28,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023349799] [2021-10-11 00:23:28,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:28,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:28,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:28,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:28,741 INFO L87 Difference]: Start difference. First operand 2755 states and 3057 transitions. Second operand 3 states. [2021-10-11 00:23:29,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:29,218 INFO L93 Difference]: Finished difference Result 6032 states and 6689 transitions. [2021-10-11 00:23:29,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:29,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2021-10-11 00:23:29,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:29,235 INFO L225 Difference]: With dead ends: 6032 [2021-10-11 00:23:29,236 INFO L226 Difference]: Without dead ends: 3279 [2021-10-11 00:23:29,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2021-10-11 00:23:29,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2755. [2021-10-11 00:23:29,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2021-10-11 00:23:29,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3057 transitions. [2021-10-11 00:23:29,303 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3057 transitions. Word has length 223 [2021-10-11 00:23:29,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:29,304 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3057 transitions. [2021-10-11 00:23:29,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:29,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3057 transitions. [2021-10-11 00:23:29,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-10-11 00:23:29,311 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:29,311 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:29,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:29,539 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:29,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:29,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1072116722, now seen corresponding path program 1 times [2021-10-11 00:23:29,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:29,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927281804] [2021-10-11 00:23:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 127 proven. 3 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-10-11 00:23:29,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927281804] [2021-10-11 00:23:29,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365947101] [2021-10-11 00:23:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:29,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:23:29,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:30,001 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-10-11 00:23:30,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:23:30,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:23:30,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871849920] [2021-10-11 00:23:30,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:23:30,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:30,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:30,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:30,004 INFO L87 Difference]: Start difference. First operand 2755 states and 3057 transitions. Second operand 3 states. [2021-10-11 00:23:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:30,440 INFO L93 Difference]: Finished difference Result 4851 states and 5346 transitions. [2021-10-11 00:23:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:23:30,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2021-10-11 00:23:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:30,441 INFO L225 Difference]: With dead ends: 4851 [2021-10-11 00:23:30,441 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:23:30,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:30,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:23:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:23:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:23:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:23:30,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2021-10-11 00:23:30,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:30,447 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:30,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:23:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:23:30,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:23:30,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-11 00:23:30,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:23:30,954 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2021-10-11 00:23:31,125 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2021-10-11 00:23:31,128 INFO L262 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2021-10-11 00:23:31,128 INFO L262 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2021-10-11 00:23:31,128 INFO L262 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2021-10-11 00:23:31,128 INFO L262 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2021-10-11 00:23:31,128 INFO L262 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2021-10-11 00:23:31,128 INFO L262 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2021-10-11 00:23:31,129 INFO L262 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-10-11 00:23:31,130 INFO L262 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,131 INFO L262 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-10-11 00:23:31,132 INFO L262 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2021-10-11 00:23:31,133 INFO L262 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-10-11 00:23:31,134 INFO L262 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2021-10-11 00:23:31,139 INFO L262 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2021-10-11 00:23:31,139 INFO L262 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2021-10-11 00:23:31,139 INFO L262 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2021-10-11 00:23:31,139 INFO L262 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2021-10-11 00:23:31,139 INFO L262 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2021-10-11 00:23:31,139 INFO L262 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-10-11 00:23:31,139 INFO L262 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,140 INFO L262 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2021-10-11 00:23:31,141 INFO L262 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2021-10-11 00:23:31,142 INFO L262 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2021-10-11 00:23:31,142 INFO L262 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2021-10-11 00:23:31,142 INFO L262 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2021-10-11 00:23:31,142 INFO L262 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-10-11 00:23:31,143 INFO L258 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse6 (= ~a20~0 1))) (let ((.cse5 (<= ~a7~0 0)) (.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse0 (= ~a21~0 1)) (.cse4 (<= ~a17~0 0)) (.cse8 (not .cse6)) (.cse2 (= ~a17~0 1)) (.cse9 (<= ~a16~0 5)) (.cse7 (<= ~a21~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse5) (and .cse4 .cse6 .cse7) (and .cse0 .cse5 .cse6 .cse2) (and .cse3 .cse6 .cse2) (and .cse4 .cse8 .cse1) (and (<= 14 ~a8~0) .cse0 .cse4 .cse6) (and .cse9 .cse4 .cse8) (and .cse7 .cse6 .cse2) (and .cse9 .cse7)))) [2021-10-11 00:23:31,143 INFO L262 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,143 INFO L262 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,143 INFO L262 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2021-10-11 00:23:31,144 INFO L262 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:23:31,145 INFO L262 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-10-11 00:23:31,146 INFO L265 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-10-11 00:23:31,146 INFO L262 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,146 INFO L262 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,146 INFO L262 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,146 INFO L262 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,146 INFO L262 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,146 INFO L262 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2021-10-11 00:23:31,147 INFO L262 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,148 INFO L262 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-10-11 00:23:31,149 INFO L262 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-10-11 00:23:31,150 INFO L262 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-10-11 00:23:31,150 INFO L262 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-10-11 00:23:31,151 INFO L262 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-10-11 00:23:31,151 INFO L262 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,151 INFO L258 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse6 (= ~a20~0 1))) (let ((.cse5 (<= ~a7~0 0)) (.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse0 (= ~a21~0 1)) (.cse4 (<= ~a17~0 0)) (.cse8 (not .cse6)) (.cse2 (= ~a17~0 1)) (.cse9 (<= ~a16~0 5)) (.cse7 (<= ~a21~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse5) (and .cse4 .cse6 .cse7) (and .cse0 .cse5 .cse6 .cse2) (and .cse3 .cse6 .cse2) (and .cse4 .cse8 .cse1) (and (<= 14 ~a8~0) .cse0 .cse4 .cse6) (and .cse9 .cse4 .cse8) (and .cse7 .cse6 .cse2) (and .cse9 .cse7)))) [2021-10-11 00:23:31,151 INFO L262 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,151 INFO L262 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,151 INFO L262 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,151 INFO L262 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 468) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2021-10-11 00:23:31,152 INFO L262 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-10-11 00:23:31,153 INFO L262 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-10-11 00:23:31,154 INFO L262 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-10-11 00:23:31,154 INFO L262 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-10-11 00:23:31,154 INFO L262 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-10-11 00:23:31,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:23:31 BoogieIcfgContainer [2021-10-11 00:23:31,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:23:31,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:31,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:31,190 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:31,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:17" (3/4) ... [2021-10-11 00:23:31,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:23:31,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:23:31,222 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:23:31,223 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:23:31,224 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:23:31,406 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b9370c-793f-46c8-8f5b-12b13404c668/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:23:31,406 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:31,408 INFO L168 Benchmark]: Toolchain (without parser) took 16452.59 ms. Allocated memory was 107.0 MB in the beginning and 413.1 MB in the end (delta: 306.2 MB). Free memory was 75.8 MB in the beginning and 371.3 MB in the end (delta: -295.5 MB). Peak memory consumption was 203.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:31,408 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 83.9 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:31,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.52 ms. Allocated memory is still 107.0 MB. Free memory was 75.8 MB in the beginning and 66.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:31,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.72 ms. Allocated memory is still 107.0 MB. Free memory was 66.9 MB in the beginning and 61.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:31,410 INFO L168 Benchmark]: Boogie Preprocessor took 128.17 ms. Allocated memory is still 107.0 MB. Free memory was 61.4 MB in the beginning and 81.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:31,410 INFO L168 Benchmark]: RCFGBuilder took 1390.76 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 81.2 MB in the beginning and 88.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:31,410 INFO L168 Benchmark]: TraceAbstraction took 13914.00 ms. Allocated memory was 136.3 MB in the beginning and 343.9 MB in the end (delta: 207.6 MB). Free memory was 88.5 MB in the beginning and 119.9 MB in the end (delta: -31.3 MB). Peak memory consumption was 176.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:31,411 INFO L168 Benchmark]: Witness Printer took 216.36 ms. Allocated memory was 343.9 MB in the beginning and 413.1 MB in the end (delta: 69.2 MB). Free memory was 119.9 MB in the beginning and 371.3 MB in the end (delta: -251.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:31,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 83.9 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 688.52 ms. Allocated memory is still 107.0 MB. Free memory was 75.8 MB in the beginning and 66.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.72 ms. Allocated memory is still 107.0 MB. Free memory was 66.9 MB in the beginning and 61.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 128.17 ms. Allocated memory is still 107.0 MB. Free memory was 61.4 MB in the beginning and 81.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1390.76 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 81.2 MB in the beginning and 88.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13914.00 ms. Allocated memory was 136.3 MB in the beginning and 343.9 MB in the end (delta: 207.6 MB). Free memory was 88.5 MB in the beginning and 119.9 MB in the end (delta: -31.3 MB). Peak memory consumption was 176.1 MB. Max. memory is 16.1 GB. * Witness Printer took 216.36 ms. Allocated memory was 343.9 MB in the beginning and 413.1 MB in the end (delta: 69.2 MB). Free memory was 119.9 MB in the beginning and 371.3 MB in the end (delta: -251.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 468]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((a21 == 1 && 15 <= a8) && a17 == 1) || (((a21 == 1 && a16 <= 4) && a17 <= 0) && a7 <= 0)) || ((a17 <= 0 && a20 == 1) && a21 <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a16 <= 4 && a20 == 1) && a17 == 1)) || ((a17 <= 0 && !(a20 == 1)) && 15 <= a8)) || (((14 <= a8 && a21 == 1) && a17 <= 0) && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a17 == 1)) || (a16 <= 5 && a21 <= 0) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((a21 == 1 && 15 <= a8) && a17 == 1) || (((a21 == 1 && a16 <= 4) && a17 <= 0) && a7 <= 0)) || ((a17 <= 0 && a20 == 1) && a21 <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a16 <= 4 && a20 == 1) && a17 == 1)) || ((a17 <= 0 && !(a20 == 1)) && 15 <= a8)) || (((14 <= a8 && a21 == 1) && a17 <= 0) && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a17 == 1)) || (a16 <= 5 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.3s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 851 SDtfs, 1420 SDslu, 68 SDs, 0 SdLazy, 4127 SolverSat, 636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1048 GetRequests, 1025 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1703 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 219 HoareAnnotationTreeSize, 3 FomulaSimplifications, 876 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 218 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2940 NumberOfCodeBlocks, 2940 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2923 ConstructedInterpolants, 0 QuantifiedInterpolants, 997212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2131 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 17 InterpolantComputations, 12 PerfectInterpolantSequences, 2489/2504 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...