./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH --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 64bit --witnessprinter.graph.data.programhash 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:07:07,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:07:07,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:07:07,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:07:07,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:07:07,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:07:07,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:07:07,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:07:07,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:07:07,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:07:07,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:07:07,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:07:07,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:07:07,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:07:07,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:07:07,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:07:07,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:07:07,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:07:07,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:07:07,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:07:07,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:07:07,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:07:07,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:07:07,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:07:07,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:07:07,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:07:07,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:07:07,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:07:07,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:07:07,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:07:07,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:07:07,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:07:07,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:07:07,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:07:07,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:07:07,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:07:07,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:07:07,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:07:07,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:07:07,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:07:07,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:07:07,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:07:07,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:07:07,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:07:07,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:07:07,136 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:07:07,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:07:07,137 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:07:07,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:07:07,138 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:07:07,138 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:07:07,138 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:07:07,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:07:07,139 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:07:07,140 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:07:07,140 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:07:07,140 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:07:07,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:07:07,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:07:07,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:07:07,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:07:07,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:07:07,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:07:07,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:07:07,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:07:07,144 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:07:07,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:07:07,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:07:07,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:07:07,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:07:07,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:07:07,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:07:07,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:07:07,147 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:07:07,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:07:07,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:07:07,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:07:07,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:07:07,149 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 [2021-11-03 05:07:07,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:07:07,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:07:07,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:07:07,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:07:07,463 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:07:07,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-03 05:07:07,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/fc0898f8f/c9a153f3b5d94fa6a789ee2ff212db81/FLAGfb0bcb8f4 [2021-11-03 05:07:08,389 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:07:08,390 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-03 05:07:08,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/fc0898f8f/c9a153f3b5d94fa6a789ee2ff212db81/FLAGfb0bcb8f4 [2021-11-03 05:07:08,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/fc0898f8f/c9a153f3b5d94fa6a789ee2ff212db81 [2021-11-03 05:07:08,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:07:08,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:07:08,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:07:08,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:07:08,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:07:08,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:08" (1/1) ... [2021-11-03 05:07:08,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4f0690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:08, skipping insertion in model container [2021-11-03 05:07:08,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:08" (1/1) ... [2021-11-03 05:07:08,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:07:09,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:07:09,337 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-03 05:07:09,344 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-03 05:07:09,370 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:07:09,376 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:07:10,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:10,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:07:10,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:07:10,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:07:10,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:07:10,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:07:10,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:07:10,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:07:10,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:07:10,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:07:10,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:07:10,980 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:07:11,002 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:07:11,020 INFO L168 Benchmark]: Toolchain (without parser) took 2133.36 ms. Allocated memory is still 115.3 MB. Free memory was 74.8 MB in the beginning and 55.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:07:11,020 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 83.9 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:07:11,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2125.73 ms. Allocated memory is still 115.3 MB. Free memory was 74.4 MB in the beginning and 55.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:07:11,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 83.9 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2125.73 ms. Allocated memory is still 115.3 MB. Free memory was 74.4 MB in the beginning and 55.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH --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 64bit --witnessprinter.graph.data.programhash 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:07:13,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:07:13,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:07:13,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:07:13,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:07:13,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:07:13,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:07:13,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:07:13,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:07:13,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:07:13,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:07:13,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:07:13,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:07:13,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:07:13,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:07:13,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:07:13,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:07:13,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:07:13,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:07:13,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:07:13,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:07:13,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:07:13,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:07:13,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:07:13,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:07:13,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:07:13,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:07:13,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:07:13,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:07:13,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:07:13,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:07:13,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:07:13,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:07:13,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:07:13,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:07:13,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:07:13,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:07:13,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:07:13,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:07:13,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:07:13,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:07:13,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:07:13,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:07:13,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:07:13,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:07:13,347 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:07:13,347 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:07:13,348 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:07:13,348 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:07:13,348 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:07:13,349 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:07:13,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:07:13,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:07:13,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:07:13,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:07:13,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:07:13,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:07:13,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:07:13,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:07:13,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:07:13,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:07:13,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:07:13,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:07:13,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:07:13,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:07:13,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:07:13,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:07:13,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:07:13,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:07:13,357 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:07:13,357 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:07:13,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:07:13,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:07:13,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:07:13,359 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 [2021-11-03 05:07:13,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:07:13,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:07:13,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:07:13,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:07:13,752 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:07:13,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-03 05:07:13,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/4f1c220a1/b29974460eeb409c92ba4e9fa26311cd/FLAG9bfa95be5 [2021-11-03 05:07:14,766 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:07:14,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-03 05:07:14,818 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/4f1c220a1/b29974460eeb409c92ba4e9fa26311cd/FLAG9bfa95be5 [2021-11-03 05:07:15,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/data/4f1c220a1/b29974460eeb409c92ba4e9fa26311cd [2021-11-03 05:07:15,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:07:15,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:07:15,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:07:15,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:07:15,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:07:15,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:15" (1/1) ... [2021-11-03 05:07:15,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b84c8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:15, skipping insertion in model container [2021-11-03 05:07:15,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:07:15" (1/1) ... [2021-11-03 05:07:15,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:07:15,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:07:15,675 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-03 05:07:15,681 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-03 05:07:15,702 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:07:15,707 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:07:16,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:16,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:07:17,104 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:07:17,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:07:17,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:07:17,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:07:17,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:07:17,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:07:17,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:07:17,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:07:17,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:07:17,310 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:07:17,472 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:07:17,656 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:07:17,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:07:17,720 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-03 05:07:17,721 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-03 05:07:17,723 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:07:17,724 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:07:17,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:07:17,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:07:17,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:07:17,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:07:17,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:07:17,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:07:17,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:07:17,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:07:17,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:07:17,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:07:17,840 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:07:17,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:17,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:07:18,051 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:07:18,075 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-03 05:07:18,076 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_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-03 05:07:18,077 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:07:18,078 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:07:18,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,163 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:07:18,164 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:07:18,164 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:07:18,203 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:07:18,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:07:18,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:07:18,205 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:07:18,205 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:07:18,206 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:07:18,206 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:07:18,245 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:07:18,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:07:18,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:07:18,689 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:07:18,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18 WrapperNode [2021-11-03 05:07:18,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:07:18,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:07:18,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:07:18,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:07:18,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:18,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:18,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:07:18,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:07:18,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:07:18,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:07:18,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:18,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:18,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:18,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:19,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:19,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:19,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:19,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:07:19,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:07:19,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:07:19,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:07:19,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (1/1) ... [2021-11-03 05:07:19,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:07:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:07:19,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:07:19,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:07:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:07:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:07:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:07:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:07:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:07:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:07:19,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:07:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:07:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:07:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:07:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:07:19,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:07:19,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:07:19,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:07:33,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:07:33,689 INFO L299 CfgBuilder]: Removed 59 assume(true) statements. [2021-11-03 05:07:33,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:07:33 BoogieIcfgContainer [2021-11-03 05:07:33,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:07:33,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:07:33,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:07:33,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:07:33,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:07:15" (1/3) ... [2021-11-03 05:07:33,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f485f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:07:33, skipping insertion in model container [2021-11-03 05:07:33,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:07:18" (2/3) ... [2021-11-03 05:07:33,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f485f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:07:33, skipping insertion in model container [2021-11-03 05:07:33,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:07:33" (3/3) ... [2021-11-03 05:07:33,710 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_secure_zero_harness.i [2021-11-03 05:07:33,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:07:33,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 05:07:33,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:07:33,792 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, mAutomataTypeConcurrency=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 [2021-11-03 05:07:33,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 05:07:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 108 states have (on average 1.4444444444444444) internal successors, (156), 112 states have internal predecessors, (156), 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) [2021-11-03 05:07:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 05:07:33,821 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:33,822 INFO L513 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] [2021-11-03 05:07:33,823 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:07:33,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:33,828 INFO L85 PathProgramCache]: Analyzing trace with hash -158234594, now seen corresponding path program 1 times [2021-11-03 05:07:33,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:33,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520202696] [2021-11-03 05:07:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:33,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:33,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:33,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:33,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:07:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:38,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:07:38,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:38,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:38,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:07:38,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520202696] [2021-11-03 05:07:38,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520202696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:07:38,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:07:38,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:07:38,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3265442] [2021-11-03 05:07:38,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:07:38,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:07:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:07:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:07:38,429 INFO L87 Difference]: Start difference. First operand has 113 states, 108 states have (on average 1.4444444444444444) internal successors, (156), 112 states have internal predecessors, (156), 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 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-11-03 05:07:38,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:07:38,455 INFO L93 Difference]: Finished difference Result 222 states and 307 transitions. [2021-11-03 05:07:38,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:07:38,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2021-11-03 05:07:38,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:07:38,466 INFO L225 Difference]: With dead ends: 222 [2021-11-03 05:07:38,466 INFO L226 Difference]: Without dead ends: 108 [2021-11-03 05:07:38,469 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:07:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-03 05:07:38,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-11-03 05:07:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 104 states have (on average 1.3461538461538463) internal successors, (140), 107 states have internal predecessors, (140), 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) [2021-11-03 05:07:38,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 140 transitions. [2021-11-03 05:07:38,508 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 140 transitions. Word has length 29 [2021-11-03 05:07:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:07:38,508 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 140 transitions. [2021-11-03 05:07:38,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-11-03 05:07:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 140 transitions. [2021-11-03 05:07:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 05:07:38,510 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:38,510 INFO L513 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] [2021-11-03 05:07:38,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:38,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:07:38,727 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:07:38,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -4552034, now seen corresponding path program 1 times [2021-11-03 05:07:38,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:38,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645485469] [2021-11-03 05:07:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:38,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:38,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:38,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:38,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:07:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:42,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:07:42,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:43,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:43,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:43,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:07:43,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645485469] [2021-11-03 05:07:43,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645485469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:07:43,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:07:43,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:07:43,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024390414] [2021-11-03 05:07:43,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:07:43,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:07:43,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:07:43,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:07:43,365 INFO L87 Difference]: Start difference. First operand 108 states and 140 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-03 05:07:43,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:07:43,583 INFO L93 Difference]: Finished difference Result 190 states and 246 transitions. [2021-11-03 05:07:43,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:07:43,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2021-11-03 05:07:43,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:07:43,588 INFO L225 Difference]: With dead ends: 190 [2021-11-03 05:07:43,589 INFO L226 Difference]: Without dead ends: 108 [2021-11-03 05:07:43,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:07:43,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-03 05:07:43,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-11-03 05:07:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 107 states have internal predecessors, (137), 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) [2021-11-03 05:07:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2021-11-03 05:07:43,600 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 29 [2021-11-03 05:07:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:07:43,600 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2021-11-03 05:07:43,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-03 05:07:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2021-11-03 05:07:43,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:07:43,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:43,602 INFO L513 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] [2021-11-03 05:07:43,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:43,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:07:43,827 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:07:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:43,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1058096316, now seen corresponding path program 1 times [2021-11-03 05:07:43,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:43,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615900420] [2021-11-03 05:07:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:43,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:43,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:43,834 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:43,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:07:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:48,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:07:48,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:48,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:48,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:48,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:07:48,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615900420] [2021-11-03 05:07:48,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615900420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:07:48,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:07:48,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:07:48,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904667139] [2021-11-03 05:07:48,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:07:48,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:07:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:07:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:07:48,359 INFO L87 Difference]: Start difference. First operand 108 states and 137 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-03 05:07:48,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:07:48,711 INFO L93 Difference]: Finished difference Result 231 states and 298 transitions. [2021-11-03 05:07:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:07:48,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-03 05:07:48,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:07:48,714 INFO L225 Difference]: With dead ends: 231 [2021-11-03 05:07:48,714 INFO L226 Difference]: Without dead ends: 148 [2021-11-03 05:07:48,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:07:48,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-03 05:07:48,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2021-11-03 05:07:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 115 states have internal predecessors, (145), 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) [2021-11-03 05:07:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 145 transitions. [2021-11-03 05:07:48,731 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 145 transitions. Word has length 41 [2021-11-03 05:07:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:07:48,731 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 145 transitions. [2021-11-03 05:07:48,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-03 05:07:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 145 transitions. [2021-11-03 05:07:48,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:07:48,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:48,734 INFO L513 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] [2021-11-03 05:07:48,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:48,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:07:48,943 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:07:48,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:48,943 INFO L85 PathProgramCache]: Analyzing trace with hash 996056702, now seen corresponding path program 1 times [2021-11-03 05:07:48,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:48,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784523340] [2021-11-03 05:07:48,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:48,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:48,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:48,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:48,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:07:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:53,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:07:53,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:53,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 05:07:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:53,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:54,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 05:07:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:54,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:07:54,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784523340] [2021-11-03 05:07:54,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784523340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:07:54,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:07:54,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 05:07:54,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359168824] [2021-11-03 05:07:54,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:07:54,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:07:54,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:07:54,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:07:54,467 INFO L87 Difference]: Start difference. First operand 116 states and 145 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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) [2021-11-03 05:08:02,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:08:02,568 INFO L93 Difference]: Finished difference Result 227 states and 285 transitions. [2021-11-03 05:08:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:08:02,571 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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 41 [2021-11-03 05:08:02,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:08:02,572 INFO L225 Difference]: With dead ends: 227 [2021-11-03 05:08:02,572 INFO L226 Difference]: Without dead ends: 138 [2021-11-03 05:08:02,573 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-03 05:08:02,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-03 05:08:02,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2021-11-03 05:08:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 108 states have (on average 1.287037037037037) internal successors, (139), 111 states have internal predecessors, (139), 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) [2021-11-03 05:08:02,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2021-11-03 05:08:02,589 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 41 [2021-11-03 05:08:02,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:08:02,589 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2021-11-03 05:08:02,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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) [2021-11-03 05:08:02,590 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2021-11-03 05:08:02,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 05:08:02,591 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:08:02,591 INFO L513 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] [2021-11-03 05:08:02,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:08:02,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:08:02,814 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:08:02,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:08:02,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1187507132, now seen corresponding path program 1 times [2021-11-03 05:08:02,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:08:02,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745001070] [2021-11-03 05:08:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:08:02,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:08:02,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:08:02,819 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:08:02,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:08:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:08:06,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:08:06,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:08:07,292 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:08:07,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:08:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:08:07,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:08:08,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:08:08,047 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:08:08,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745001070] [2021-11-03 05:08:08,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745001070] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:08:08,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:08:08,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:08:08,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520386277] [2021-11-03 05:08:08,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:08:08,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:08:08,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:08:08,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:08:08,049 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-11-03 05:08:14,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:08:14,695 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2021-11-03 05:08:14,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:08:14,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 49 [2021-11-03 05:08:14,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:08:14,699 INFO L225 Difference]: With dead ends: 327 [2021-11-03 05:08:14,700 INFO L226 Difference]: Without dead ends: 235 [2021-11-03 05:08:14,700 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:08:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-03 05:08:14,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 136. [2021-11-03 05:08:14,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2803030303030303) internal successors, (169), 135 states have internal predecessors, (169), 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) [2021-11-03 05:08:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 169 transitions. [2021-11-03 05:08:14,723 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 169 transitions. Word has length 49 [2021-11-03 05:08:14,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:08:14,725 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 169 transitions. [2021-11-03 05:08:14,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-11-03 05:08:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 169 transitions. [2021-11-03 05:08:14,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 05:08:14,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:08:14,734 INFO L513 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] [2021-11-03 05:08:14,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:08:14,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:08:14,942 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:08:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:08:14,943 INFO L85 PathProgramCache]: Analyzing trace with hash 868038652, now seen corresponding path program 1 times [2021-11-03 05:08:14,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:08:14,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923631155] [2021-11-03 05:08:14,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:08:14,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:08:14,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:08:14,949 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:08:14,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:08:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:08:18,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:08:18,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:08:19,378 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:08:19,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:08:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:08:19,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:08:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:08:20,580 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:08:20,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923631155] [2021-11-03 05:08:20,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923631155] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:08:20,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:08:20,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 05:08:20,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746798811] [2021-11-03 05:08:20,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:08:20,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:08:20,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:08:20,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:08:20,583 INFO L87 Difference]: Start difference. First operand 136 states and 169 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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) [2021-11-03 05:08:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:08:32,098 INFO L93 Difference]: Finished difference Result 379 states and 447 transitions. [2021-11-03 05:08:32,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:08:32,101 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 49 [2021-11-03 05:08:32,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:08:32,104 INFO L225 Difference]: With dead ends: 379 [2021-11-03 05:08:32,104 INFO L226 Difference]: Without dead ends: 226 [2021-11-03 05:08:32,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:08:32,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-03 05:08:32,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 130. [2021-11-03 05:08:32,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 126 states have (on average 1.2301587301587302) internal successors, (155), 129 states have internal predecessors, (155), 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) [2021-11-03 05:08:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 155 transitions. [2021-11-03 05:08:32,119 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 155 transitions. Word has length 49 [2021-11-03 05:08:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:08:32,119 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 155 transitions. [2021-11-03 05:08:32,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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) [2021-11-03 05:08:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 155 transitions. [2021-11-03 05:08:32,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 05:08:32,125 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:08:32,125 INFO L513 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] [2021-11-03 05:08:32,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:08:32,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:08:32,343 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:08:32,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:08:32,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1487976734, now seen corresponding path program 1 times [2021-11-03 05:08:32,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:08:32,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506909012] [2021-11-03 05:08:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:08:32,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:08:32,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:08:32,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:08:32,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e71edc7-8e6c-4e5b-a6c6-fc263f97f0a3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:08:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:08:36,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 05:08:36,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:08:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:08:37,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:08:48,515 WARN L207 SmtUtils]: Spent 10.37 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 05:08:48,518 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 05:08:48,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771