./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea1d92b403839080b84472f5f751a439d61a1da2 ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea1d92b403839080b84472f5f751a439d61a1da2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:45:13,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:45:13,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:45:13,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:45:13,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:45:13,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:45:13,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:45:13,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:45:13,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:45:13,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:45:13,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:45:13,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:45:13,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:45:13,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:45:13,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:45:13,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:45:13,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:45:13,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:45:13,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:45:13,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:45:13,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:45:13,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:45:13,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:45:13,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:45:13,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:45:13,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:45:13,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:45:13,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:45:13,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:45:13,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:45:13,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:45:13,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:45:13,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:45:13,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:45:13,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:45:13,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:45:13,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:45:13,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:45:13,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:45:13,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:45:13,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:45:13,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:45:13,572 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:45:13,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:45:13,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:45:13,573 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:45:13,573 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:45:13,574 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:45:13,574 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:45:13,574 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:45:13,574 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:45:13,575 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:45:13,575 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:45:13,575 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:45:13,575 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:45:13,576 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:45:13,576 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:45:13,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:45:13,577 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:45:13,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:45:13,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:45:13,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:45:13,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:45:13,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:45:13,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:45:13,579 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:45:13,579 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:45:13,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:45:13,579 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:45:13,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:45:13,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:45:13,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:45:13,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:45:13,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:45:13,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:45:13,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:45:13,581 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:45:13,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:45:13,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:45:13,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:45:13,582 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:45:13,583 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1d92b403839080b84472f5f751a439d61a1da2 [2021-10-13 06:45:13,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:45:13,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:45:13,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:45:13,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:45:13,879 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:45:13,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-13 06:45:13,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/83a72d044/dd41bdc804924e49add1e384e34df2de/FLAG2514be4a3 [2021-10-13 06:45:14,595 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:45:14,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-13 06:45:14,619 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/83a72d044/dd41bdc804924e49add1e384e34df2de/FLAG2514be4a3 [2021-10-13 06:45:14,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/83a72d044/dd41bdc804924e49add1e384e34df2de [2021-10-13 06:45:14,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:45:14,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:45:14,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:45:14,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:45:14,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:45:14,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:45:14" (1/1) ... [2021-10-13 06:45:14,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25cf82d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:14, skipping insertion in model container [2021-10-13 06:45:14,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:45:14" (1/1) ... [2021-10-13 06:45:14,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:45:14,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:45:15,199 WARN L228 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_e865f036-11df-40d4-80a7-6b2795c7149f/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-13 06:45:15,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:45:15,507 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:45:15,562 WARN L228 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_e865f036-11df-40d4-80a7-6b2795c7149f/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-13 06:45:15,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:45:15,706 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:45:15,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15 WrapperNode [2021-10-13 06:45:15,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:45:15,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:45:15,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:45:15,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:45:15,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:15,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:15,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:45:15,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:45:15,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:45:15,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:45:15,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:15,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:15,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:15,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:16,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:16,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:16,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:16,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:45:16,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:45:16,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:45:16,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:45:16,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (1/1) ... [2021-10-13 06:45:16,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:45:16,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:45:16,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:45:16,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:45:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:45:16,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:45:16,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:45:16,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:45:40,922 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:45:40,922 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 06:45:40,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:45:40 BoogieIcfgContainer [2021-10-13 06:45:40,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:45:40,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:45:40,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:45:40,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:45:40,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:45:14" (1/3) ... [2021-10-13 06:45:40,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc10e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:45:40, skipping insertion in model container [2021-10-13 06:45:40,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:45:15" (2/3) ... [2021-10-13 06:45:40,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc10e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:45:40, skipping insertion in model container [2021-10-13 06:45:40,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:45:40" (3/3) ... [2021-10-13 06:45:40,933 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label38.c [2021-10-13 06:45:40,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:45:40,939 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:45:40,994 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:45:41,003 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:45:41,003 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:45:41,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 06:45:41,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:45:41,022 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 06:45:41,023 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:45:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:45:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1191230633, now seen corresponding path program 1 times [2021-10-13 06:45:41,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:45:41,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604630150] [2021-10-13 06:45:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:41,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:45:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:41,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:41,317 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:45:41,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604630150] [2021-10-13 06:45:41,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604630150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:45:41,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:45:41,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 06:45:41,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019542791] [2021-10-13 06:45:41,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:45:41,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:45:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:45:41,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:45:41,395 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:45:41,583 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 06:45:41,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:45:41,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-13 06:45:41,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:45:41,591 INFO L225 Difference]: With dead ends: 23 [2021-10-13 06:45:41,591 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 06:45:41,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 06:45:41,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 06:45:41,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 06:45:41,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 06:45:41,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 06:45:41,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:45:41,627 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 06:45:41,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:45:41,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 06:45:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 06:45:41,629 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:45:41,629 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 06:45:41,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:45:41,630 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:45:41,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:45:41,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1989213887, now seen corresponding path program 1 times [2021-10-13 06:45:41,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:45:41,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037689394] [2021-10-13 06:45:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:41,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:45:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:42,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:42,394 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:45:42,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037689394] [2021-10-13 06:45:42,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037689394] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:45:42,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945332587] [2021-10-13 06:45:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:45:42,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:45:42,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:45:42,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:45:42,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 06:45:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:45:42,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 06:45:42,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:45:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:45:46,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:51:30,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 06:51:30,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1242518634] [2021-10-13 06:51:30,602 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 06:51:30,603 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 06:51:30,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 06:51:30,612 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 06:51:30,612 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 06:51:30,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:30,646 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:51:30,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:30,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 06:51:30,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:51:30,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:30,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 06:51:30,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 06:51:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:51:30,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:51:30,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:51:30,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 06:51:30,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:30,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:51:30,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:30,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:51:30,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 06:51:30,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:30,716 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:30,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:51:30,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 06:51:30,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 06:51:30,721 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:158 [2021-10-13 06:51:30,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:51:30,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:51:30,949 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 06:51:30,954 INFO L168 Benchmark]: Toolchain (without parser) took 376130.32 ms. Allocated memory was 130.0 MB in the beginning and 3.8 GB in the end (delta: 3.7 GB). Free memory was 100.7 MB in the beginning and 3.4 GB in the end (delta: -3.3 GB). Peak memory consumption was 437.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:30,955 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.0 MB. Free memory was 83.0 MB in the beginning and 82.9 MB in the end (delta: 74.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:51:30,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 881.54 ms. Allocated memory is still 130.0 MB. Free memory was 100.7 MB in the beginning and 70.7 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:30,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 247.76 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 70.7 MB in the beginning and 124.4 MB in the end (delta: -53.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:30,956 INFO L168 Benchmark]: Boogie Preprocessor took 125.48 ms. Allocated memory is still 163.6 MB. Free memory was 124.4 MB in the beginning and 115.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:30,957 INFO L168 Benchmark]: RCFGBuilder took 24841.86 ms. Allocated memory was 163.6 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 115.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 323.6 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:30,958 INFO L168 Benchmark]: TraceAbstraction took 350025.14 ms. Allocated memory was 1.9 GB in the beginning and 3.8 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.4 GB in the end (delta: -1.8 GB). Peak memory consumption was 178.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:30,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 130.0 MB. Free memory was 83.0 MB in the beginning and 82.9 MB in the end (delta: 74.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 881.54 ms. Allocated memory is still 130.0 MB. Free memory was 100.7 MB in the beginning and 70.7 MB in the end (delta: 30.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 247.76 ms. Allocated memory was 130.0 MB in the beginning and 163.6 MB in the end (delta: 33.6 MB). Free memory was 70.7 MB in the beginning and 124.4 MB in the end (delta: -53.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 125.48 ms. Allocated memory is still 163.6 MB. Free memory was 124.4 MB in the beginning and 115.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 24841.86 ms. Allocated memory was 163.6 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 115.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 323.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 350025.14 ms. Allocated memory was 1.9 GB in the beginning and 3.8 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.4 GB in the end (delta: -1.8 GB). Peak memory consumption was 178.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 06:51:31,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:51:33,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:51:33,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:51:33,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:51:33,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:51:33,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:51:33,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:51:33,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:51:33,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:51:33,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:51:33,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:51:33,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:51:33,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:51:33,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:51:33,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:51:33,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:51:33,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:51:33,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:51:33,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:51:33,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:51:33,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:51:33,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:51:33,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:51:33,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:51:33,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:51:33,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:51:33,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:51:33,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:51:33,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:51:33,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:51:33,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:51:33,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:51:33,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:51:33,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:51:33,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:51:33,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:51:33,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:51:33,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:51:33,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:51:33,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:51:33,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:51:33,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:51:33,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:51:33,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:51:33,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:51:33,599 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:51:33,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:51:33,600 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:51:33,600 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:51:33,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:51:33,600 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:51:33,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:51:33,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:51:33,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:51:33,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:51:33,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:51:33,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:51:33,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:51:33,604 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:51:33,604 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:51:33,604 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:51:33,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:51:33,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:51:33,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:51:33,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:51:33,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:51:33,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:51:33,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:51:33,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:51:33,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:51:33,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:51:33,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:51:33,607 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:51:33,607 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:51:33,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:51:33,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:51:33,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:51:33,608 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1d92b403839080b84472f5f751a439d61a1da2 [2021-10-13 06:51:34,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:51:34,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:51:34,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:51:34,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:51:34,048 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:51:34,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-13 06:51:34,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/2423b1647/75613d0ded834ea7a7e125362dfd8712/FLAG79db19fac [2021-10-13 06:51:34,733 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:51:34,734 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-13 06:51:34,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/2423b1647/75613d0ded834ea7a7e125362dfd8712/FLAG79db19fac [2021-10-13 06:51:34,983 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/data/2423b1647/75613d0ded834ea7a7e125362dfd8712 [2021-10-13 06:51:34,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:51:34,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:51:34,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:51:34,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:51:34,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:51:34,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:51:34" (1/1) ... [2021-10-13 06:51:34,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29253704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:34, skipping insertion in model container [2021-10-13 06:51:34,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:51:34" (1/1) ... [2021-10-13 06:51:35,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:51:35,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:51:35,447 WARN L228 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_e865f036-11df-40d4-80a7-6b2795c7149f/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-13 06:51:35,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:51:35,777 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:51:35,828 WARN L228 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_e865f036-11df-40d4-80a7-6b2795c7149f/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-13 06:51:35,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:51:35,990 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:51:35,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35 WrapperNode [2021-10-13 06:51:35,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:51:35,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:51:35,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:51:35,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:51:35,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:51:36,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:51:36,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:51:36,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:51:36,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:51:36,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:51:36,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:51:36,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:51:36,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (1/1) ... [2021-10-13 06:51:36,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:51:36,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:51:36,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:51:36,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:51:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:51:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:51:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:51:36,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:51:43,759 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:51:43,759 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 06:51:43,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:51:43 BoogieIcfgContainer [2021-10-13 06:51:43,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:51:43,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:51:43,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:51:43,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:51:43,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:51:34" (1/3) ... [2021-10-13 06:51:43,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244c0b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:51:43, skipping insertion in model container [2021-10-13 06:51:43,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:51:35" (2/3) ... [2021-10-13 06:51:43,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244c0b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:51:43, skipping insertion in model container [2021-10-13 06:51:43,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:51:43" (3/3) ... [2021-10-13 06:51:43,782 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label38.c [2021-10-13 06:51:43,786 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:51:43,786 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:51:43,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:51:43,884 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:51:43,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:51:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:51:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-13 06:51:43,932 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:51:43,933 INFO L512 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] [2021-10-13 06:51:43,933 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:51:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:51:43,937 INFO L82 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2021-10-13 06:51:43,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:51:43,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714368286] [2021-10-13 06:51:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:51:43,951 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:51:43,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:51:43,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:51:43,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:51:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:51:44,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:51:44,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:51:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:44,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:51:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:51:44,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:51:44,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714368286] [2021-10-13 06:51:44,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714368286] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:51:44,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:51:44,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:51:44,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585194566] [2021-10-13 06:51:44,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:51:44,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:51:44,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:51:44,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:51:44,812 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:17,613 INFO L93 Difference]: Finished difference Result 970 states and 1743 transitions. [2021-10-13 06:52:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:52:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-13 06:52:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:17,637 INFO L225 Difference]: With dead ends: 970 [2021-10-13 06:52:17,637 INFO L226 Difference]: Without dead ends: 604 [2021-10-13 06:52:17,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:17,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-13 06:52:17,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 598. [2021-10-13 06:52:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 1.4840871021775544) internal successors, (886), 597 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:17,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 886 transitions. [2021-10-13 06:52:17,781 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 886 transitions. Word has length 60 [2021-10-13 06:52:17,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:17,782 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 886 transitions. [2021-10-13 06:52:17,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:17,783 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 886 transitions. [2021-10-13 06:52:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-10-13 06:52:17,795 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:17,796 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:52:17,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:52:18,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:18,007 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:18,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:18,009 INFO L82 PathProgramCache]: Analyzing trace with hash -591086660, now seen corresponding path program 1 times [2021-10-13 06:52:18,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:18,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894753150] [2021-10-13 06:52:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:18,012 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:18,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:18,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:18,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:52:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:18,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:52:18,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:18,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:19,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:19,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894753150] [2021-10-13 06:52:19,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894753150] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:52:19,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:52:19,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:52:19,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326913577] [2021-10-13 06:52:19,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:52:19,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:19,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:52:19,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:19,978 INFO L87 Difference]: Start difference. First operand 598 states and 886 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:30,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:30,598 INFO L93 Difference]: Finished difference Result 2322 states and 3458 transitions. [2021-10-13 06:52:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:52:30,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-10-13 06:52:30,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:30,608 INFO L225 Difference]: With dead ends: 2322 [2021-10-13 06:52:30,608 INFO L226 Difference]: Without dead ends: 1726 [2021-10-13 06:52:30,611 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2021-10-13 06:52:30,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1524. [2021-10-13 06:52:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 1.370978332239002) internal successors, (2088), 1523 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:30,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 2088 transitions. [2021-10-13 06:52:30,660 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 2088 transitions. Word has length 129 [2021-10-13 06:52:30,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:30,661 INFO L470 AbstractCegarLoop]: Abstraction has 1524 states and 2088 transitions. [2021-10-13 06:52:30,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:30,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 2088 transitions. [2021-10-13 06:52:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-10-13 06:52:30,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:30,685 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:52:30,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:52:30,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:30,898 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:30,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:30,898 INFO L82 PathProgramCache]: Analyzing trace with hash 800544359, now seen corresponding path program 1 times [2021-10-13 06:52:30,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:30,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082030550] [2021-10-13 06:52:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:30,901 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:30,902 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:30,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:52:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:31,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:52:31,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-13 06:52:31,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-13 06:52:32,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:32,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082030550] [2021-10-13 06:52:32,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082030550] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:52:32,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:52:32,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 06:52:32,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585881090] [2021-10-13 06:52:32,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:52:32,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:32,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:52:32,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:32,627 INFO L87 Difference]: Start difference. First operand 1524 states and 2088 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:52:50,516 INFO L93 Difference]: Finished difference Result 5258 states and 7337 transitions. [2021-10-13 06:52:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:52:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2021-10-13 06:52:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:52:50,537 INFO L225 Difference]: With dead ends: 5258 [2021-10-13 06:52:50,538 INFO L226 Difference]: Without dead ends: 3736 [2021-10-13 06:52:50,540 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:52:50,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2021-10-13 06:52:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3736. [2021-10-13 06:52:50,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 3735 states have (on average 1.2444444444444445) internal successors, (4648), 3735 states have internal predecessors, (4648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:50,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 4648 transitions. [2021-10-13 06:52:50,655 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 4648 transitions. Word has length 200 [2021-10-13 06:52:50,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:52:50,656 INFO L470 AbstractCegarLoop]: Abstraction has 3736 states and 4648 transitions. [2021-10-13 06:52:50,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:52:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 4648 transitions. [2021-10-13 06:52:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-10-13 06:52:50,662 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:52:50,662 INFO L512 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, 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] [2021-10-13 06:52:50,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-13 06:52:50,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:52:50,878 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:52:50,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:52:50,878 INFO L82 PathProgramCache]: Analyzing trace with hash -765977344, now seen corresponding path program 1 times [2021-10-13 06:52:50,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:52:50,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883100302] [2021-10-13 06:52:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:52:50,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:52:50,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:52:50,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:52:50,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:52:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:52:51,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:52:51,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:52:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 115 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:53,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:52:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:52:57,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:52:57,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883100302] [2021-10-13 06:52:57,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883100302] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:52:57,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 06:52:57,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 06:52:57,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288484419] [2021-10-13 06:52:57,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:52:57,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:52:57,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:52:57,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:52:57,581 INFO L87 Difference]: Start difference. First operand 3736 states and 4648 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:13,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:13,470 INFO L93 Difference]: Finished difference Result 7096 states and 9099 transitions. [2021-10-13 06:53:13,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:53:13,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-10-13 06:53:13,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:13,497 INFO L225 Difference]: With dead ends: 7096 [2021-10-13 06:53:13,497 INFO L226 Difference]: Without dead ends: 4840 [2021-10-13 06:53:13,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:53:13,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4840 states. [2021-10-13 06:53:13,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4840 to 4840. [2021-10-13 06:53:13,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4840 states, 4839 states have (on average 1.2605910312047943) internal successors, (6100), 4839 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4840 states to 4840 states and 6100 transitions. [2021-10-13 06:53:13,634 INFO L78 Accepts]: Start accepts. Automaton has 4840 states and 6100 transitions. Word has length 241 [2021-10-13 06:53:13,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:13,635 INFO L470 AbstractCegarLoop]: Abstraction has 4840 states and 6100 transitions. [2021-10-13 06:53:13,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4840 states and 6100 transitions. [2021-10-13 06:53:13,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-10-13 06:53:13,644 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:13,646 INFO L512 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, 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] [2021-10-13 06:53:13,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 06:53:13,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:13,861 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:13,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:13,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1528003240, now seen corresponding path program 1 times [2021-10-13 06:53:13,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:13,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448304506] [2021-10-13 06:53:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:13,866 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:13,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:13,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:13,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:53:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:14,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:53:14,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:15,595 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:15,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:16,761 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:53:16,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448304506] [2021-10-13 06:53:16,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448304506] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:53:16,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1451448562] [2021-10-13 06:53:16,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:16,762 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:53:16,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:53:16,778 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:53:16,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-13 06:53:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:17,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 06:53:17,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:19,202 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-10-13 06:53:19,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-10-13 06:53:20,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1451448562] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:53:20,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 06:53:20,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 10 [2021-10-13 06:53:20,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375772656] [2021-10-13 06:53:20,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 06:53:20,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:53:20,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 06:53:20,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-13 06:53:20,677 INFO L87 Difference]: Start difference. First operand 4840 states and 6100 transitions. Second operand has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:54:01,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:54:01,791 INFO L93 Difference]: Finished difference Result 11206 states and 14491 transitions. [2021-10-13 06:54:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 06:54:01,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-10-13 06:54:01,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:54:01,826 INFO L225 Difference]: With dead ends: 11206 [2021-10-13 06:54:01,826 INFO L226 Difference]: Without dead ends: 6736 [2021-10-13 06:54:01,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1146 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 242.6ms TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-13 06:54:01,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6736 states. [2021-10-13 06:54:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6736 to 6129. [2021-10-13 06:54:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6128 states have (on average 1.2468994778067886) internal successors, (7641), 6128 states have internal predecessors, (7641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:54:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 7641 transitions. [2021-10-13 06:54:02,007 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 7641 transitions. Word has length 287 [2021-10-13 06:54:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:54:02,008 INFO L470 AbstractCegarLoop]: Abstraction has 6129 states and 7641 transitions. [2021-10-13 06:54:02,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:54:02,012 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 7641 transitions. [2021-10-13 06:54:02,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2021-10-13 06:54:02,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:54:02,030 INFO L512 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:54:02,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:54:02,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-13 06:54:02,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 06:54:02,448 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:54:02,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:54:02,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1455588175, now seen corresponding path program 1 times [2021-10-13 06:54:02,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:54:02,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216067353] [2021-10-13 06:54:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:54:02,452 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:54:02,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:54:02,452 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:54:02,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 06:54:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:54:03,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 06:54:03,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:54:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 173 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:54:06,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:54:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 252 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:54:31,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:54:31,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216067353] [2021-10-13 06:54:31,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216067353] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:54:31,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1741684856] [2021-10-13 06:54:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:54:31,738 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:54:31,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:54:31,739 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:54:31,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 06:54:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:54:33,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 06:54:33,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:54:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 306 proven. 58 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-10-13 06:54:38,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:54:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 323 proven. 41 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-10-13 06:54:42,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1741684856] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:54:42,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846839011] [2021-10-13 06:54:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:54:42,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:54:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:54:42,167 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:54:42,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 06:54:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:54:44,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:54:44,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:54:46,149 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2021-10-13 06:54:46,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:54:47,702 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2021-10-13 06:54:47,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846839011] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:54:47,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 06:54:47,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5, 7, 7] total 17 [2021-10-13 06:54:47,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235559479] [2021-10-13 06:54:47,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:54:47,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:54:47,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:54:47,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-10-13 06:54:47,705 INFO L87 Difference]: Start difference. First operand 6129 states and 7641 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:54:55,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:54:55,549 INFO L93 Difference]: Finished difference Result 13174 states and 16672 transitions. [2021-10-13 06:54:55,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:54:55,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2021-10-13 06:54:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:54:55,589 INFO L225 Difference]: With dead ends: 13174 [2021-10-13 06:54:55,589 INFO L226 Difference]: Without dead ends: 7415 [2021-10-13 06:54:55,598 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2346 GetRequests, 2331 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2260.2ms TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-10-13 06:54:55,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2021-10-13 06:54:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 5942. [2021-10-13 06:54:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5941 states have (on average 1.2331257364080122) internal successors, (7326), 5941 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:54:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 7326 transitions. [2021-10-13 06:54:55,827 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 7326 transitions. Word has length 392 [2021-10-13 06:54:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:54:55,828 INFO L470 AbstractCegarLoop]: Abstraction has 5942 states and 7326 transitions. [2021-10-13 06:54:55,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:54:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 7326 transitions. [2021-10-13 06:54:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-10-13 06:54:55,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:54:55,875 INFO L512 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:54:55,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-13 06:54:56,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 06:54:56,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-13 06:54:56,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:54:56,484 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:54:56,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:54:56,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1882733110, now seen corresponding path program 1 times [2021-10-13 06:54:56,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:54:56,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923790351] [2021-10-13 06:54:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:54:56,489 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:54:56,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:54:56,490 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:54:56,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 06:54:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:54:58,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:54:58,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:54:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 337 proven. 97 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-13 06:54:59,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:55:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-13 06:55:01,334 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:55:01,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923790351] [2021-10-13 06:55:01,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923790351] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 06:55:01,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 06:55:01,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 06:55:01,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491113681] [2021-10-13 06:55:01,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:55:01,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:55:01,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:55:01,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:55:01,339 INFO L87 Difference]: Start difference. First operand 5942 states and 7326 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:55:24,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:55:24,600 INFO L93 Difference]: Finished difference Result 14458 states and 17850 transitions. [2021-10-13 06:55:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:55:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 425 [2021-10-13 06:55:24,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:55:24,640 INFO L225 Difference]: With dead ends: 14458 [2021-10-13 06:55:24,640 INFO L226 Difference]: Without dead ends: 8886 [2021-10-13 06:55:24,647 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:55:24,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8886 states. [2021-10-13 06:55:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8886 to 8150. [2021-10-13 06:55:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8150 states, 8149 states have (on average 1.1801448030433181) internal successors, (9617), 8149 states have internal predecessors, (9617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:55:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8150 states to 8150 states and 9617 transitions. [2021-10-13 06:55:24,869 INFO L78 Accepts]: Start accepts. Automaton has 8150 states and 9617 transitions. Word has length 425 [2021-10-13 06:55:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:55:24,870 INFO L470 AbstractCegarLoop]: Abstraction has 8150 states and 9617 transitions. [2021-10-13 06:55:24,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:55:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 8150 states and 9617 transitions. [2021-10-13 06:55:24,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-10-13 06:55:24,890 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:55:24,890 INFO L512 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:55:24,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 06:55:25,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:55:25,105 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:55:25,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:55:25,106 INFO L82 PathProgramCache]: Analyzing trace with hash -860744180, now seen corresponding path program 1 times [2021-10-13 06:55:25,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:55:25,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218611596] [2021-10-13 06:55:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:55:25,109 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:55:25,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:55:25,110 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:55:25,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 06:55:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:55:27,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 06:55:27,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:55:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 173 proven. 349 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:55:29,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:55:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 395 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:55:38,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:55:38,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218611596] [2021-10-13 06:55:38,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218611596] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:55:38,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [587685454] [2021-10-13 06:55:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:55:38,196 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:55:38,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:55:38,197 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:55:38,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-13 06:55:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:55:41,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:55:41,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:55:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-13 06:55:42,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:55:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-13 06:55:43,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [587685454] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:55:43,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 06:55:43,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-13 06:55:43,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924278649] [2021-10-13 06:55:43,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 06:55:43,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:55:43,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 06:55:43,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:55:43,566 INFO L87 Difference]: Start difference. First operand 8150 states and 9617 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:55:53,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:55:53,937 INFO L93 Difference]: Finished difference Result 15923 states and 19060 transitions. [2021-10-13 06:55:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:55:53,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 439 [2021-10-13 06:55:53,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:55:53,939 INFO L225 Difference]: With dead ends: 15923 [2021-10-13 06:55:53,939 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 06:55:53,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1752 GetRequests, 1746 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 406.6ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:55:53,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 06:55:53,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 06:55:53,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:55:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 06:55:53,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 439 [2021-10-13 06:55:53,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:55:53,948 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 06:55:53,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:55:53,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 06:55:53,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 06:55:53,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:55:53,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 06:55:54,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-13 06:55:54,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 06:55:54,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 06:55:54,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:55:54,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:55:54,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:55:55,251 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-13 06:55:55,251 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,251 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-13 06:55:55,252 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,253 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,254 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,255 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (or (not (bvslt (_ bv277 32) ~a29~0)) (not (bvsge (_ bv138 32) ~a23~0)) (not (= (_ bv13 32) ~a25~0)) (not (= ~a4~0 (_ bv1 32)))) [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,256 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,257 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,258 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (or (not (bvslt (_ bv277 32) ~a29~0)) (not (bvsge (_ bv138 32) ~a23~0)) (not (= (_ bv13 32) ~a25~0)) (not (= ~a4~0 (_ bv1 32)))) [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,259 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-13 06:55:55,260 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-13 06:55:55,263 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-13 06:55:55,264 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,264 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,264 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,264 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,264 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,264 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,264 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,265 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,265 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,265 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,265 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 06:55:55,265 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-13 06:55:55,266 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-13 06:55:55,266 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-13 06:55:55,266 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-13 06:55:55,266 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,266 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,266 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,267 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,267 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,267 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-13 06:55:55,267 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-13 06:55:55,267 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-13 06:55:55,268 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,268 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,268 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,268 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,268 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-13 06:55:55,268 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-13 06:55:55,268 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,269 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,269 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,269 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,269 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,269 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,269 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-13 06:55:55,270 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-13 06:55:55,270 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,270 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,270 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-13 06:55:55,270 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-13 06:55:55,270 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-13 06:55:55,270 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 06:55:55,271 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 196) no Hoare annotation was computed. [2021-10-13 06:55:55,271 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,271 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,271 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,271 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,271 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,271 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,272 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,272 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 06:55:55,272 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-13 06:55:55,272 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-13 06:55:55,272 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-13 06:55:55,272 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-13 06:55:55,272 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-13 06:55:55,273 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-13 06:55:55,273 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,273 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,273 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-13 06:55:55,273 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-13 06:55:55,273 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,274 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,274 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,274 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,274 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,274 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-13 06:55:55,274 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-13 06:55:55,274 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-13 06:55:55,275 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,277 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,277 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,277 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,277 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,278 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,278 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-13 06:55:55,278 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-13 06:55:55,278 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-13 06:55:55,278 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,278 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,278 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,279 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,279 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,279 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,279 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,279 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,279 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-13 06:55:55,279 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-13 06:55:55,280 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-13 06:55:55,280 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,280 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,280 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,280 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,280 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,280 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,281 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,281 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,281 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,281 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,281 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,281 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-13 06:55:55,281 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-13 06:55:55,282 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 06:55:55,282 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-13 06:55:55,282 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-13 06:55:55,282 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,282 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,282 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,283 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,283 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,283 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,283 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,283 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-13 06:55:55,283 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-13 06:55:55,283 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-13 06:55:55,284 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,284 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,284 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,284 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-13 06:55:55,284 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-13 06:55:55,284 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,284 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,285 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,285 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,285 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,285 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-13 06:55:55,285 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-13 06:55:55,285 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,285 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,286 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-13 06:55:55,286 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-13 06:55:55,286 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,286 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 06:55:55,286 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,286 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,287 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,287 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,287 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,287 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-13 06:55:55,287 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-13 06:55:55,287 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-13 06:55:55,287 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-13 06:55:55,288 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,288 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,288 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,288 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,288 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,288 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,288 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,289 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,289 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-13 06:55:55,289 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-13 06:55:55,290 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-13 06:55:55,290 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-13 06:55:55,290 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-13 06:55:55,291 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-13 06:55:55,291 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,291 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,291 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,292 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,292 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,293 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,293 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,293 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 06:55:55,293 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-13 06:55:55,294 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 06:55:55,294 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,294 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,294 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,294 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,294 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,294 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,295 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-13 06:55:55,295 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-13 06:55:55,295 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,295 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,295 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,295 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,295 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,296 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,296 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,296 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-13 06:55:55,296 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-13 06:55:55,296 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,296 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,296 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-13 06:55:55,297 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-13 06:55:55,297 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-13 06:55:55,297 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-13 06:55:55,303 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:55:55,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:55:55 BoogieIcfgContainer [2021-10-13 06:55:55,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:55:55,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:55:55,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:55:55,334 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:55:55,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:51:43" (3/4) ... [2021-10-13 06:55:55,340 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 06:55:55,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 06:55:55,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 06:55:55,372 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:55:55,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:55:55,536 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:55:55,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:55:55,538 INFO L168 Benchmark]: Toolchain (without parser) took 260549.76 ms. Allocated memory was 58.7 MB in the beginning and 209.7 MB in the end (delta: 151.0 MB). Free memory was 32.8 MB in the beginning and 90.3 MB in the end (delta: -57.5 MB). Peak memory consumption was 135.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:55,538 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 58.7 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:55:55,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1002.27 ms. Allocated memory was 58.7 MB in the beginning and 83.9 MB in the end (delta: 25.2 MB). Free memory was 32.6 MB in the beginning and 41.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:55,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 162.40 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 58.7 MB in the end (delta: -17.0 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:55,539 INFO L168 Benchmark]: Boogie Preprocessor took 164.29 ms. Allocated memory is still 83.9 MB. Free memory was 58.7 MB in the beginning and 52.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:55,540 INFO L168 Benchmark]: RCFGBuilder took 7439.87 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 52.0 MB in the beginning and 77.1 MB in the end (delta: -25.2 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:55,540 INFO L168 Benchmark]: TraceAbstraction took 251571.03 ms. Allocated memory was 119.5 MB in the beginning and 209.7 MB in the end (delta: 90.2 MB). Free memory was 76.5 MB in the beginning and 52.1 MB in the end (delta: 24.4 MB). Peak memory consumption was 118.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:55,541 INFO L168 Benchmark]: Witness Printer took 202.65 ms. Allocated memory is still 209.7 MB. Free memory was 52.1 MB in the beginning and 90.3 MB in the end (delta: -38.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:55:55,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 58.7 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1002.27 ms. Allocated memory was 58.7 MB in the beginning and 83.9 MB in the end (delta: 25.2 MB). Free memory was 32.6 MB in the beginning and 41.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 162.40 ms. Allocated memory is still 83.9 MB. Free memory was 41.7 MB in the beginning and 58.7 MB in the end (delta: -17.0 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 164.29 ms. Allocated memory is still 83.9 MB. Free memory was 58.7 MB in the beginning and 52.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7439.87 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 52.0 MB in the beginning and 77.1 MB in the end (delta: -25.2 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 251571.03 ms. Allocated memory was 119.5 MB in the beginning and 209.7 MB in the end (delta: 90.2 MB). Free memory was 76.5 MB in the beginning and 52.1 MB in the end (delta: 24.4 MB). Peak memory consumption was 118.1 MB. Max. memory is 16.1 GB. * Witness Printer took 202.65 ms. Allocated memory is still 209.7 MB. Free memory was 52.1 MB in the beginning and 90.3 MB in the end (delta: -38.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 196]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 251434.7ms, OverallIterations: 8, TraceHistogramMax: 4, EmptinessCheckTime: 149.5ms, AutomataDifference: 160062.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 899.1ms, InitialAbstractionConstructionTime: 27.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1232 SDtfs, 2242 SDslu, 252 SDs, 0 SdLazy, 6287 SolverSat, 1777 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 145972.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7344 GetRequests, 7302 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3036.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8150occurred in iteration=7, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1037.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 3024 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 116 NumberOfFragments, 35 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11292 FormulaSimplificationTreeSizeReduction, 467.3ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 840 FormulaSimplificationTreeSizeReductionInter, 425.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 298.0ms SsaConstructionTime, 1917.5ms SatisfiabilityAnalysisTime, 71024.4ms InterpolantComputationTime, 3683 NumberOfCodeBlocks, 3683 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 7342 ConstructedInterpolants, 0 QuantifiedInterpolants, 30809 SizeOfPredicates, 27 NumberOfNonLiveVariables, 4492 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 24 InterpolantComputations, 14 PerfectInterpolantSequences, 6033/7432 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((!~bvslt32(277bv32, a29) || !~bvsge32(138bv32, a23)) || !(13bv32 == a25)) || !(a4 == 1bv32) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((!~bvslt32(277bv32, a29) || !~bvsge32(138bv32, a23)) || !(13bv32 == a25)) || !(a4 == 1bv32) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 06:55:55,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e865f036-11df-40d4-80a7-6b2795c7149f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...