./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label25.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_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/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_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/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_3c12586e-90d5-4a72-ab03-84bc23fdc683/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 74d4b4e1b2ec5fbffdfa57040692f34be426e04d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:19:18,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:19:18,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:19:18,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:19:18,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:19:18,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:19:18,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:19:18,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:19:18,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:19:18,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:19:18,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:19:18,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:19:18,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:19:18,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:19:18,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:19:18,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:19:18,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:19:18,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:19:18,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:19:18,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:19:18,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:19:18,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:19:18,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:19:18,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:19:18,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:19:18,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:19:18,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:19:18,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:19:18,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:19:18,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:19:18,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:19:18,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:19:18,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:19:18,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:19:18,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:19:18,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:19:18,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:19:18,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:19:18,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:19:18,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:19:18,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:19:18,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:19:18,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:19:18,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:19:18,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:19:18,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:19:18,575 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:19:18,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:19:18,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:19:18,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:19:18,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:19:18,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:19:18,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:19:18,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:19:18,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:19:18,577 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:19:18,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:19:18,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:19:18,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:19:18,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:19:18,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:19:18,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:19:18,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:18,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:19:18,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:19:18,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:19:18,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:19:18,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:19:18,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:19:18,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:19:18,581 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_3c12586e-90d5-4a72-ab03-84bc23fdc683/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74d4b4e1b2ec5fbffdfa57040692f34be426e04d [2021-10-11 00:19:18,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:19:18,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:19:18,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:19:18,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:19:18,894 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:19:18,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem10_label25.c [2021-10-11 00:19:18,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/data/fd8a8f797/3683eb566a934695ba165cef884c57d4/FLAG89736679e [2021-10-11 00:19:19,716 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:19:19,717 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/sv-benchmarks/c/eca-rers2012/Problem10_label25.c [2021-10-11 00:19:19,744 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/data/fd8a8f797/3683eb566a934695ba165cef884c57d4/FLAG89736679e [2021-10-11 00:19:19,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/data/fd8a8f797/3683eb566a934695ba165cef884c57d4 [2021-10-11 00:19:19,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:19:19,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:19:19,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:19,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:19:19,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:19:19,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:19" (1/1) ... [2021-10-11 00:19:19,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160faa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:19, skipping insertion in model container [2021-10-11 00:19:19,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:19" (1/1) ... [2021-10-11 00:19:19,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:19:20,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:19:20,329 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_3c12586e-90d5-4a72-ab03-84bc23fdc683/sv-benchmarks/c/eca-rers2012/Problem10_label25.c[7284,7297] [2021-10-11 00:19:20,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:20,516 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:19:20,589 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_3c12586e-90d5-4a72-ab03-84bc23fdc683/sv-benchmarks/c/eca-rers2012/Problem10_label25.c[7284,7297] [2021-10-11 00:19:20,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:20,777 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:19:20,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20 WrapperNode [2021-10-11 00:19:20,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:20,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:20,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:19:20,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:19:20,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:20,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:19:20,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:19:20,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:19:20,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:21,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:19:21,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:19:21,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:19:21,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:19:21,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/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 00:19:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:19:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:19:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:19:21,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:19:22,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:19:22,765 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:19:22,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:22 BoogieIcfgContainer [2021-10-11 00:19:22,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:19:22,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:19:22,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:19:22,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:19:22,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:19:19" (1/3) ... [2021-10-11 00:19:22,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b799e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:22, skipping insertion in model container [2021-10-11 00:19:22,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (2/3) ... [2021-10-11 00:19:22,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b799e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:22, skipping insertion in model container [2021-10-11 00:19:22,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:22" (3/3) ... [2021-10-11 00:19:22,785 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label25.c [2021-10-11 00:19:22,804 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:19:22,809 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:19:22,822 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:19:22,849 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:19:22,849 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:19:22,850 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:19:22,850 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:19:22,850 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:19:22,850 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:19:22,851 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:19:22,851 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:19:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2021-10-11 00:19:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-11 00:19:22,885 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:22,886 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] [2021-10-11 00:19:22,886 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:22,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:22,893 INFO L82 PathProgramCache]: Analyzing trace with hash -107486446, now seen corresponding path program 1 times [2021-10-11 00:19:22,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:22,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145335679] [2021-10-11 00:19:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:23,252 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 00:19:23,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145335679] [2021-10-11 00:19:23,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:23,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:19:23,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594198971] [2021-10-11 00:19:23,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:23,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:23,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:23,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:23,283 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2021-10-11 00:19:24,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:24,423 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2021-10-11 00:19:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:24,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2021-10-11 00:19:24,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:24,457 INFO L225 Difference]: With dead ends: 567 [2021-10-11 00:19:24,457 INFO L226 Difference]: Without dead ends: 282 [2021-10-11 00:19:24,462 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 00:19:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-11 00:19:24,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-11 00:19:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2021-10-11 00:19:24,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2021-10-11 00:19:24,566 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 64 [2021-10-11 00:19:24,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:24,567 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2021-10-11 00:19:24,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2021-10-11 00:19:24,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-10-11 00:19:24,574 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:24,575 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2021-10-11 00:19:24,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:19:24,575 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:24,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:24,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1958781868, now seen corresponding path program 1 times [2021-10-11 00:19:24,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:24,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131265915] [2021-10-11 00:19:24,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:24,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131265915] [2021-10-11 00:19:24,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:24,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:19:24,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300004246] [2021-10-11 00:19:24,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:24,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:24,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:24,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:24,925 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand 3 states. [2021-10-11 00:19:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:25,636 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2021-10-11 00:19:25,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:25,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2021-10-11 00:19:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:25,641 INFO L225 Difference]: With dead ends: 840 [2021-10-11 00:19:25,641 INFO L226 Difference]: Without dead ends: 560 [2021-10-11 00:19:25,643 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 00:19:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-11 00:19:25,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-11 00:19:25,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2021-10-11 00:19:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2021-10-11 00:19:25,668 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 134 [2021-10-11 00:19:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:25,669 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2021-10-11 00:19:25,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2021-10-11 00:19:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-11 00:19:25,674 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:25,674 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2021-10-11 00:19:25,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:19:25,675 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:25,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:25,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1963860308, now seen corresponding path program 1 times [2021-10-11 00:19:25,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:25,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655509240] [2021-10-11 00:19:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:25,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655509240] [2021-10-11 00:19:25,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:25,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:19:25,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586575370] [2021-10-11 00:19:25,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:19:25,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:25,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:19:25,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:19:25,982 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 7 states. [2021-10-11 00:19:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:26,551 INFO L93 Difference]: Finished difference Result 1173 states and 1513 transitions. [2021-10-11 00:19:26,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:19:26,553 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2021-10-11 00:19:26,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:26,558 INFO L225 Difference]: With dead ends: 1173 [2021-10-11 00:19:26,558 INFO L226 Difference]: Without dead ends: 560 [2021-10-11 00:19:26,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:19:26,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-11 00:19:26,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-11 00:19:26,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2021-10-11 00:19:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 726 transitions. [2021-10-11 00:19:26,594 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 726 transitions. Word has length 139 [2021-10-11 00:19:26,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:26,595 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 726 transitions. [2021-10-11 00:19:26,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:19:26,595 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 726 transitions. [2021-10-11 00:19:26,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-11 00:19:26,600 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:26,600 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2021-10-11 00:19:26,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:19:26,601 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:26,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:26,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1763631748, now seen corresponding path program 1 times [2021-10-11 00:19:26,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:26,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951162522] [2021-10-11 00:19:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:26,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951162522] [2021-10-11 00:19:26,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:26,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:19:26,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629297949] [2021-10-11 00:19:26,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:26,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:26,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:26,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:26,743 INFO L87 Difference]: Start difference. First operand 560 states and 726 transitions. Second operand 3 states. [2021-10-11 00:19:27,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:27,380 INFO L93 Difference]: Finished difference Result 1674 states and 2173 transitions. [2021-10-11 00:19:27,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:27,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2021-10-11 00:19:27,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:27,388 INFO L225 Difference]: With dead ends: 1674 [2021-10-11 00:19:27,389 INFO L226 Difference]: Without dead ends: 1116 [2021-10-11 00:19:27,390 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 00:19:27,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-10-11 00:19:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 977. [2021-10-11 00:19:27,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2021-10-11 00:19:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1241 transitions. [2021-10-11 00:19:27,448 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1241 transitions. Word has length 155 [2021-10-11 00:19:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:27,449 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1241 transitions. [2021-10-11 00:19:27,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1241 transitions. [2021-10-11 00:19:27,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-10-11 00:19:27,458 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:27,458 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2021-10-11 00:19:27,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:19:27,458 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:27,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:27,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1885723645, now seen corresponding path program 1 times [2021-10-11 00:19:27,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:27,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438104605] [2021-10-11 00:19:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:27,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438104605] [2021-10-11 00:19:27,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:27,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:19:27,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020403986] [2021-10-11 00:19:27,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:27,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:27,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:27,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:27,700 INFO L87 Difference]: Start difference. First operand 977 states and 1241 transitions. Second operand 3 states. [2021-10-11 00:19:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:28,310 INFO L93 Difference]: Finished difference Result 2091 states and 2628 transitions. [2021-10-11 00:19:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:28,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2021-10-11 00:19:28,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:28,318 INFO L225 Difference]: With dead ends: 2091 [2021-10-11 00:19:28,318 INFO L226 Difference]: Without dead ends: 1116 [2021-10-11 00:19:28,320 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 00:19:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-10-11 00:19:28,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-10-11 00:19:28,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2021-10-11 00:19:28,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1384 transitions. [2021-10-11 00:19:28,383 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1384 transitions. Word has length 156 [2021-10-11 00:19:28,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:28,384 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1384 transitions. [2021-10-11 00:19:28,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1384 transitions. [2021-10-11 00:19:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-10-11 00:19:28,387 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:28,388 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2021-10-11 00:19:28,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:19:28,388 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:28,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:28,389 INFO L82 PathProgramCache]: Analyzing trace with hash -461516974, now seen corresponding path program 1 times [2021-10-11 00:19:28,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:28,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456717548] [2021-10-11 00:19:28,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:28,623 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-11 00:19:28,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456717548] [2021-10-11 00:19:28,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328510613] [2021-10-11 00:19:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/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 00:19:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:28,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:19:28,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:29,082 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-11 00:19:29,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:19:29,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-11 00:19:29,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2383591] [2021-10-11 00:19:29,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:29,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:29,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:29,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:19:29,085 INFO L87 Difference]: Start difference. First operand 1116 states and 1384 transitions. Second operand 3 states. [2021-10-11 00:19:29,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:29,781 INFO L93 Difference]: Finished difference Result 1535 states and 1900 transitions. [2021-10-11 00:19:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:29,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2021-10-11 00:19:29,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:29,791 INFO L225 Difference]: With dead ends: 1535 [2021-10-11 00:19:29,791 INFO L226 Difference]: Without dead ends: 1533 [2021-10-11 00:19:29,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 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 00:19:29,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-11 00:19:29,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1255. [2021-10-11 00:19:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2021-10-11 00:19:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1571 transitions. [2021-10-11 00:19:29,825 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1571 transitions. Word has length 175 [2021-10-11 00:19:29,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:29,826 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1571 transitions. [2021-10-11 00:19:29,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1571 transitions. [2021-10-11 00:19:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-10-11 00:19:29,830 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:29,831 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 00:19:30,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-11 00:19:30,055 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:30,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:30,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1716805468, now seen corresponding path program 1 times [2021-10-11 00:19:30,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:30,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214798627] [2021-10-11 00:19:30,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:30,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214798627] [2021-10-11 00:19:30,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:30,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:30,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607007823] [2021-10-11 00:19:30,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:30,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:30,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:30,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:30,191 INFO L87 Difference]: Start difference. First operand 1255 states and 1571 transitions. Second operand 3 states. [2021-10-11 00:19:30,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:30,835 INFO L93 Difference]: Finished difference Result 2786 states and 3552 transitions. [2021-10-11 00:19:30,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:30,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2021-10-11 00:19:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:30,847 INFO L225 Difference]: With dead ends: 2786 [2021-10-11 00:19:30,847 INFO L226 Difference]: Without dead ends: 1672 [2021-10-11 00:19:30,849 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 00:19:30,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-10-11 00:19:30,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1255. [2021-10-11 00:19:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2021-10-11 00:19:30,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1562 transitions. [2021-10-11 00:19:30,890 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1562 transitions. Word has length 224 [2021-10-11 00:19:30,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:30,891 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1562 transitions. [2021-10-11 00:19:30,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:30,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1562 transitions. [2021-10-11 00:19:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-10-11 00:19:30,897 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:30,897 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-10-11 00:19:30,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:19:30,898 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:30,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1888354560, now seen corresponding path program 1 times [2021-10-11 00:19:30,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:30,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631675669] [2021-10-11 00:19:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:31,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631675669] [2021-10-11 00:19:31,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:31,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:31,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577716196] [2021-10-11 00:19:31,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:31,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:31,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:31,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:31,133 INFO L87 Difference]: Start difference. First operand 1255 states and 1562 transitions. Second operand 3 states. [2021-10-11 00:19:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:31,755 INFO L93 Difference]: Finished difference Result 2786 states and 3534 transitions. [2021-10-11 00:19:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:31,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2021-10-11 00:19:31,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:31,766 INFO L225 Difference]: With dead ends: 2786 [2021-10-11 00:19:31,766 INFO L226 Difference]: Without dead ends: 1672 [2021-10-11 00:19:31,768 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 00:19:31,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-10-11 00:19:31,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2021-10-11 00:19:31,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2021-10-11 00:19:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1947 transitions. [2021-10-11 00:19:31,816 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1947 transitions. Word has length 253 [2021-10-11 00:19:31,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:31,817 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1947 transitions. [2021-10-11 00:19:31,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:31,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1947 transitions. [2021-10-11 00:19:31,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-10-11 00:19:31,824 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:31,825 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1] [2021-10-11 00:19:31,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:19:31,825 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:31,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1346063185, now seen corresponding path program 1 times [2021-10-11 00:19:31,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:31,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058753115] [2021-10-11 00:19:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 103 proven. 20 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-11 00:19:32,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058753115] [2021-10-11 00:19:32,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932903839] [2021-10-11 00:19:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/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 00:19:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:32,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:19:32,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-11 00:19:32,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:19:32,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-10-11 00:19:32,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827238513] [2021-10-11 00:19:32,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:32,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:32,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:32,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:19:32,839 INFO L87 Difference]: Start difference. First operand 1672 states and 1947 transitions. Second operand 3 states. [2021-10-11 00:19:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:33,512 INFO L93 Difference]: Finished difference Result 2230 states and 2612 transitions. [2021-10-11 00:19:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:33,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2021-10-11 00:19:33,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:33,525 INFO L225 Difference]: With dead ends: 2230 [2021-10-11 00:19:33,526 INFO L226 Difference]: Without dead ends: 2228 [2021-10-11 00:19:33,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:19:33,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-11 00:19:33,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1672. [2021-10-11 00:19:33,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2021-10-11 00:19:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1947 transitions. [2021-10-11 00:19:33,584 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1947 transitions. Word has length 312 [2021-10-11 00:19:33,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:33,585 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1947 transitions. [2021-10-11 00:19:33,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:33,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1947 transitions. [2021-10-11 00:19:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-10-11 00:19:33,596 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:33,596 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 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 00:19:33,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:33,812 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:33,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1633339563, now seen corresponding path program 1 times [2021-10-11 00:19:33,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:33,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616455042] [2021-10-11 00:19:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-11 00:19:34,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616455042] [2021-10-11 00:19:34,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:34,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:34,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298270379] [2021-10-11 00:19:34,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:34,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:34,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:34,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:34,121 INFO L87 Difference]: Start difference. First operand 1672 states and 1947 transitions. Second operand 3 states. [2021-10-11 00:19:34,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:34,749 INFO L93 Difference]: Finished difference Result 3759 states and 4392 transitions. [2021-10-11 00:19:34,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:34,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 345 [2021-10-11 00:19:34,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:34,762 INFO L225 Difference]: With dead ends: 3759 [2021-10-11 00:19:34,763 INFO L226 Difference]: Without dead ends: 2228 [2021-10-11 00:19:34,766 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 00:19:34,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-11 00:19:34,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1672. [2021-10-11 00:19:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2021-10-11 00:19:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1947 transitions. [2021-10-11 00:19:34,813 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1947 transitions. Word has length 345 [2021-10-11 00:19:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:34,814 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1947 transitions. [2021-10-11 00:19:34,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1947 transitions. [2021-10-11 00:19:34,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-10-11 00:19:34,824 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:34,824 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2021-10-11 00:19:34,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:19:34,825 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:34,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:34,826 INFO L82 PathProgramCache]: Analyzing trace with hash -686268151, now seen corresponding path program 1 times [2021-10-11 00:19:34,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:34,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113141343] [2021-10-11 00:19:34,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 158 proven. 27 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-11 00:19:35,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113141343] [2021-10-11 00:19:35,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605012349] [2021-10-11 00:19:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/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 00:19:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:35,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:19:35,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-11 00:19:35,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:19:35,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-11 00:19:35,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829545190] [2021-10-11 00:19:35,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:35,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:35,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:35,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:19:35,975 INFO L87 Difference]: Start difference. First operand 1672 states and 1947 transitions. Second operand 3 states. [2021-10-11 00:19:36,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:36,485 INFO L93 Difference]: Finished difference Result 3481 states and 4075 transitions. [2021-10-11 00:19:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:36,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 363 [2021-10-11 00:19:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:36,494 INFO L225 Difference]: With dead ends: 3481 [2021-10-11 00:19:36,494 INFO L226 Difference]: Without dead ends: 1533 [2021-10-11 00:19:36,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:19:36,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-11 00:19:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2021-10-11 00:19:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1533 states. [2021-10-11 00:19:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1753 transitions. [2021-10-11 00:19:36,533 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1753 transitions. Word has length 363 [2021-10-11 00:19:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:36,534 INFO L481 AbstractCegarLoop]: Abstraction has 1533 states and 1753 transitions. [2021-10-11 00:19:36,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:36,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1753 transitions. [2021-10-11 00:19:36,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-10-11 00:19:36,544 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:36,545 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2021-10-11 00:19:36,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-11 00:19:36,766 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:36,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:36,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1108958479, now seen corresponding path program 1 times [2021-10-11 00:19:36,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:36,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701950183] [2021-10-11 00:19:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-11 00:19:37,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701950183] [2021-10-11 00:19:37,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:37,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:37,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41275045] [2021-10-11 00:19:37,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:37,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:37,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:37,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:37,271 INFO L87 Difference]: Start difference. First operand 1533 states and 1753 transitions. Second operand 4 states. [2021-10-11 00:19:37,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:37,664 INFO L93 Difference]: Finished difference Result 2939 states and 3375 transitions. [2021-10-11 00:19:37,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:37,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 370 [2021-10-11 00:19:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:37,674 INFO L225 Difference]: With dead ends: 2939 [2021-10-11 00:19:37,674 INFO L226 Difference]: Without dead ends: 1533 [2021-10-11 00:19:37,676 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 00:19:37,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-11 00:19:37,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2021-10-11 00:19:37,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1533 states. [2021-10-11 00:19:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1752 transitions. [2021-10-11 00:19:37,710 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1752 transitions. Word has length 370 [2021-10-11 00:19:37,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:37,711 INFO L481 AbstractCegarLoop]: Abstraction has 1533 states and 1752 transitions. [2021-10-11 00:19:37,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:37,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1752 transitions. [2021-10-11 00:19:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-10-11 00:19:37,716 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:37,716 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2021-10-11 00:19:37,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:19:37,717 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:37,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:37,718 INFO L82 PathProgramCache]: Analyzing trace with hash -569527183, now seen corresponding path program 1 times [2021-10-11 00:19:37,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:37,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639878258] [2021-10-11 00:19:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:37,993 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-10-11 00:19:37,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639878258] [2021-10-11 00:19:37,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:37,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:37,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678402692] [2021-10-11 00:19:37,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:19:37,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:38,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:19:38,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:19:38,003 INFO L87 Difference]: Start difference. First operand 1533 states and 1752 transitions. Second operand 3 states. [2021-10-11 00:19:38,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:38,454 INFO L93 Difference]: Finished difference Result 3201 states and 3664 transitions. [2021-10-11 00:19:38,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:19:38,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2021-10-11 00:19:38,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:38,455 INFO L225 Difference]: With dead ends: 3201 [2021-10-11 00:19:38,455 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:19:38,458 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 00:19:38,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:19:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:19:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:19:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:19:38,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2021-10-11 00:19:38,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:38,459 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:19:38,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:19:38,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:19:38,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:19:38,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 00:19:38,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:19:38,718 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2021-10-11 00:19:38,899 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2021-10-11 00:19:38,903 INFO L262 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-11 00:19:38,903 INFO L262 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-11 00:19:38,903 INFO L262 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-11 00:19:38,903 INFO L262 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-11 00:19:38,903 INFO L262 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-11 00:19:38,903 INFO L262 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-11 00:19:38,904 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,905 INFO L262 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,906 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-11 00:19:38,907 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-11 00:19:38,908 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,909 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-11 00:19:38,910 INFO L262 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-11 00:19:38,911 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-11 00:19:38,917 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-11 00:19:38,919 INFO L258 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0)) (.cse3 (<= ~a19~0 9))) (or (and .cse0 .cse1 (<= ~a1~0 33) .cse2) (and .cse1 (= ~a10~0 2) .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 221 ~a1~0)) (and .cse1 .cse2 (<= ~a19~0 6)) (and .cse1 .cse2 .cse3 (<= ~a1~0 23)) (and .cse1 (= ~a10~0 0) .cse2) (and .cse0 (<= 9 ~a19~0) .cse1 .cse2) (and (<= 8 ~a19~0) .cse1 .cse2 .cse3))) [2021-10-11 00:19:38,919 INFO L262 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-11 00:19:38,919 INFO L262 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-11 00:19:38,919 INFO L262 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-11 00:19:38,919 INFO L262 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-11 00:19:38,920 INFO L262 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-11 00:19:38,921 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-11 00:19:38,921 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-11 00:19:38,921 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-11 00:19:38,921 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-11 00:19:38,921 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-11 00:19:38,921 INFO L262 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-11 00:19:38,921 INFO L262 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-11 00:19:38,922 INFO L265 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-11 00:19:38,922 INFO L262 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-11 00:19:38,922 INFO L262 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-11 00:19:38,922 INFO L262 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-11 00:19:38,922 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:19:38,922 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,922 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,922 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,923 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,923 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,923 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-11 00:19:38,923 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-11 00:19:38,923 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-11 00:19:38,923 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-11 00:19:38,923 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,924 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,925 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:19:38,925 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,926 INFO L262 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-11 00:19:38,926 INFO L262 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-11 00:19:38,926 INFO L262 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-11 00:19:38,926 INFO L262 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-11 00:19:38,926 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-11 00:19:38,926 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-11 00:19:38,926 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-11 00:19:38,927 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-11 00:19:38,927 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-11 00:19:38,927 INFO L262 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-11 00:19:38,927 INFO L262 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-11 00:19:38,927 INFO L262 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-11 00:19:38,927 INFO L258 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0)) (.cse3 (<= ~a19~0 9))) (or (and .cse0 .cse1 (<= ~a1~0 33) .cse2) (and .cse1 (= ~a10~0 2) .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 221 ~a1~0)) (and .cse1 .cse2 (<= ~a19~0 6)) (and .cse1 .cse2 .cse3 (<= ~a1~0 23)) (and .cse1 (= ~a10~0 0) .cse2) (and .cse0 (<= 9 ~a19~0) .cse1 .cse2) (and (<= 8 ~a19~0) .cse1 .cse2 .cse3))) [2021-10-11 00:19:38,927 INFO L262 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-11 00:19:38,928 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,928 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,928 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,928 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,928 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-11 00:19:38,928 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,928 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-11 00:19:38,929 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-11 00:19:38,930 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-11 00:19:38,930 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:19:38,930 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 206) no Hoare annotation was computed. [2021-10-11 00:19:38,930 INFO L262 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-11 00:19:38,930 INFO L262 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-11 00:19:38,931 INFO L262 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-11 00:19:38,931 INFO L262 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-11 00:19:38,931 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,931 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,931 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,931 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,931 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-11 00:19:38,932 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-11 00:19:38,933 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-11 00:19:38,933 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-11 00:19:38,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:19:38 BoogieIcfgContainer [2021-10-11 00:19:38,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:19:38,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:19:38,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:19:38,983 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:19:38,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:22" (3/4) ... [2021-10-11 00:19:38,986 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:19:39,018 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:19:39,019 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:19:39,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:19:39,021 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:19:39,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c12586e-90d5-4a72-ab03-84bc23fdc683/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:19:39,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:19:39,193 INFO L168 Benchmark]: Toolchain (without parser) took 19244.42 ms. Allocated memory was 94.4 MB in the beginning and 515.9 MB in the end (delta: 421.5 MB). Free memory was 65.2 MB in the beginning and 248.1 MB in the end (delta: -182.9 MB). Peak memory consumption was 239.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:39,194 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 94.4 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:39,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.19 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 65.0 MB in the beginning and 80.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:39,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.56 ms. Allocated memory is still 119.5 MB. Free memory was 80.0 MB in the beginning and 72.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:39,196 INFO L168 Benchmark]: Boogie Preprocessor took 124.62 ms. Allocated memory is still 119.5 MB. Free memory was 72.2 MB in the beginning and 67.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:39,196 INFO L168 Benchmark]: RCFGBuilder took 1745.18 ms. Allocated memory is still 119.5 MB. Free memory was 66.6 MB in the beginning and 82.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:39,197 INFO L168 Benchmark]: TraceAbstraction took 16207.10 ms. Allocated memory was 119.5 MB in the beginning and 515.9 MB in the end (delta: 396.4 MB). Free memory was 82.3 MB in the beginning and 261.9 MB in the end (delta: -179.5 MB). Peak memory consumption was 217.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:39,197 INFO L168 Benchmark]: Witness Printer took 210.11 ms. Allocated memory is still 515.9 MB. Free memory was 261.9 MB in the beginning and 248.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:39,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 94.4 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 828.19 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 65.0 MB in the beginning and 80.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.56 ms. Allocated memory is still 119.5 MB. Free memory was 80.0 MB in the beginning and 72.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.62 ms. Allocated memory is still 119.5 MB. Free memory was 72.2 MB in the beginning and 67.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1745.18 ms. Allocated memory is still 119.5 MB. Free memory was 66.6 MB in the beginning and 82.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16207.10 ms. Allocated memory was 119.5 MB in the beginning and 515.9 MB in the end (delta: 396.4 MB). Free memory was 82.3 MB in the beginning and 261.9 MB in the end (delta: -179.5 MB). Peak memory consumption was 217.9 MB. Max. memory is 16.1 GB. * Witness Printer took 210.11 ms. Allocated memory is still 515.9 MB. Free memory was 261.9 MB in the beginning and 248.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 206]: 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: 592]: Loop Invariant Derived loop invariant: (((((((((a10 == 1 && 14 == a4) && a1 <= 33) && a12 == 0) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && a12 == 0) && 221 <= a1)) || ((14 == a4 && a12 == 0) && a19 <= 6)) || (((14 == a4 && a12 == 0) && a19 <= 9) && a1 <= 23)) || ((14 == a4 && a10 == 0) && a12 == 0)) || (((a10 == 1 && 9 <= a19) && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((a10 == 1 && 14 == a4) && a1 <= 33) && a12 == 0) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && a12 == 0) && 221 <= a1)) || ((14 == a4 && a12 == 0) && a19 <= 6)) || (((14 == a4 && a12 == 0) && a19 <= 9) && a1 <= 23)) || ((14 == a4 && a10 == 0) && a12 == 0)) || (((a10 == 1 && 9 <= a19) && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a12 == 0) && a19 <= 9) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.6s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 967 SDtfs, 1175 SDslu, 60 SDs, 0 SdLazy, 4932 SolverSat, 672 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 891 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1672occurred in iteration=8, 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, 13 MinimizatonAttempts, 1946 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 199 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2838 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 452 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 3910 NumberOfCodeBlocks, 3910 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3894 ConstructedInterpolants, 0 QuantifiedInterpolants, 4280010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1207 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 3357/3429 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...