./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:56:24,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:56:24,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:56:24,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:56:24,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:56:24,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:56:24,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:56:24,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:56:24,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:56:24,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:56:24,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:56:24,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:56:24,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:56:24,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:56:24,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:56:24,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:56:24,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:56:24,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:56:24,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:56:24,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:56:24,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:56:24,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:56:24,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:56:24,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:56:24,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:56:24,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:56:24,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:56:24,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:56:24,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:56:24,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:56:24,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:56:24,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:56:24,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:56:24,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:56:24,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:56:24,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:56:24,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:56:24,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:56:24,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:56:24,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:56:24,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:56:24,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:56:24,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:56:24,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:56:24,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:56:24,353 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:56:24,354 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:56:24,354 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:56:24,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:56:24,354 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:56:24,355 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:56:24,355 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:56:24,362 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:56:24,362 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:56:24,363 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:56:24,363 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:56:24,363 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:56:24,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:56:24,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:56:24,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:56:24,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:56:24,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:56:24,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:56:24,366 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:56:24,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:56:24,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:56:24,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:56:24,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:56:24,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:56:24,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:24,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:56:24,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:56:24,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:56:24,371 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:56:24,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:56:24,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:56:24,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:56:24,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:56:24,372 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2021-11-03 03:56:24,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:56:24,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:56:24,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:56:24,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:56:24,688 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:56:24,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-03 03:56:24,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/58c3a0240/351a84470f4e4534a63c503edd5ae1b2/FLAGd4c496783 [2021-11-03 03:56:25,594 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:56:25,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-03 03:56:25,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/58c3a0240/351a84470f4e4534a63c503edd5ae1b2/FLAGd4c496783 [2021-11-03 03:56:26,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/58c3a0240/351a84470f4e4534a63c503edd5ae1b2 [2021-11-03 03:56:26,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:56:26,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:56:26,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:26,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:56:26,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:56:26,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:26" (1/1) ... [2021-11-03 03:56:26,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a4a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:26, skipping insertion in model container [2021-11-03 03:56:26,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:26" (1/1) ... [2021-11-03 03:56:26,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:56:26,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:26,561 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-03 03:56:26,568 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-03 03:56:26,594 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:26,600 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:27,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:27,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:28,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:28,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:28,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:28,026 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:28,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:28,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:28,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:28,030 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:28,030 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:28,031 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:28,226 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:28,281 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:56:28,296 INFO L168 Benchmark]: Toolchain (without parser) took 2195.68 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 50.8 MB in the beginning and 85.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:28,297 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:56:28,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2191.68 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 50.6 MB in the beginning and 85.1 MB in the end (delta: -34.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:28,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2191.68 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 50.6 MB in the beginning and 85.1 MB in the end (delta: -34.5 MB). Peak memory consumption was 25.6 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:56:30,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:56:30,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:56:30,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:56:30,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:56:30,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:56:30,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:56:30,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:56:30,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:56:30,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:56:30,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:56:30,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:56:30,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:56:30,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:56:30,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:56:30,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:56:30,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:56:30,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:56:30,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:56:30,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:56:30,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:56:30,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:56:30,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:56:30,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:56:30,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:56:30,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:56:30,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:56:30,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:56:30,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:56:30,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:56:30,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:56:30,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:56:30,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:56:30,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:56:30,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:56:30,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:56:30,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:56:30,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:56:30,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:56:30,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:56:30,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:56:30,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:56:30,739 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:56:30,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:56:30,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:56:30,741 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:56:30,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:56:30,742 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:56:30,742 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:56:30,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:56:30,743 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:56:30,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:56:30,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:56:30,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:56:30,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:56:30,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:56:30,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:56:30,747 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:56:30,747 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:56:30,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:56:30,747 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:56:30,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:56:30,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:56:30,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:56:30,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:56:30,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:30,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:56:30,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:56:30,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:56:30,749 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:56:30,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:56:30,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:56:30,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:56:30,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:56:30,750 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2021-11-03 03:56:31,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:56:31,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:56:31,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:56:31,176 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:56:31,177 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:56:31,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-03 03:56:31,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/3b3e40bc3/3f25e471a8af4b67a7b71bfc1bde633b/FLAG9f3e2fca5 [2021-11-03 03:56:32,169 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:56:32,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-03 03:56:32,217 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/3b3e40bc3/3f25e471a8af4b67a7b71bfc1bde633b/FLAG9f3e2fca5 [2021-11-03 03:56:32,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/data/3b3e40bc3/3f25e471a8af4b67a7b71bfc1bde633b [2021-11-03 03:56:32,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:56:32,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:56:32,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:32,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:56:32,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:56:32,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:32" (1/1) ... [2021-11-03 03:56:32,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69664651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:32, skipping insertion in model container [2021-11-03 03:56:32,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:32" (1/1) ... [2021-11-03 03:56:32,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:56:32,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:33,099 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-03 03:56:33,106 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-03 03:56:33,130 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:33,136 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:34,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:34,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:34,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:34,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:34,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:34,717 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:34,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:34,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:34,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:34,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:34,722 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:34,933 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:35,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:35,282 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:56:35,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:35,379 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-03 03:56:35,380 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-03 03:56:35,382 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:35,383 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:35,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:35,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:35,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:35,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:35,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:35,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:35,540 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:35,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:35,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:35,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:35,579 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:35,684 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:35,778 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:56:35,803 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-03 03:56:35,806 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_800110fb-6593-4e1d-a2ba-f0191c4a73c8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-03 03:56:35,808 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:35,809 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:35,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:35,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:35,932 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:35,932 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:35,933 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:35,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:35,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:35,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:35,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:35,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:35,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:35,963 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:36,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:36,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:36,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:36,511 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:56:36,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36 WrapperNode [2021-11-03 03:56:36,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:36,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:56:36,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:56:36,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:56:36,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:36,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:36,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:56:36,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:56:36,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:56:36,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:56:36,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:36,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:36,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:36,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:36,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:36,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:37,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:37,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:56:37,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:56:37,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:56:37,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:56:37,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (1/1) ... [2021-11-03 03:56:37,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:37,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:56:37,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:56:37,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:56:37,134 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 03:56:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:56:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:56:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:56:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:56:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:56:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:56:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:56:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:56:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:56:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:56:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:56:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:56:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:56:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:56:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:56:54,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:56:54,219 INFO L299 CfgBuilder]: Removed 128 assume(true) statements. [2021-11-03 03:56:54,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:54 BoogieIcfgContainer [2021-11-03 03:56:54,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:56:54,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:56:54,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:56:54,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:56:54,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:56:32" (1/3) ... [2021-11-03 03:56:54,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594591de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:54, skipping insertion in model container [2021-11-03 03:56:54,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:36" (2/3) ... [2021-11-03 03:56:54,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594591de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:54, skipping insertion in model container [2021-11-03 03:56:54,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:54" (3/3) ... [2021-11-03 03:56:54,234 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2021-11-03 03:56:54,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:56:54,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-03 03:56:54,307 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:56:54,320 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 03:56:54,321 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-03 03:56:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 243 states have (on average 1.4897119341563787) internal successors, (362), 260 states have internal predecessors, (362), 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 03:56:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 03:56:54,347 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:54,348 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] [2021-11-03 03:56:54,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:56:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash 411533362, now seen corresponding path program 1 times [2021-11-03 03:56:54,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:54,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935583826] [2021-11-03 03:56:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:54,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:54,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:54,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:54,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:56:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:58,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:56:58,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:58,859 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 03:56:58,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:59,125 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 03:56:59,126 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:59,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935583826] [2021-11-03 03:56:59,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935583826] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:59,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:59,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:56:59,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627340506] [2021-11-03 03:56:59,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:56:59,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:59,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:56:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:56:59,160 INFO L87 Difference]: Start difference. First operand has 261 states, 243 states have (on average 1.4897119341563787) internal successors, (362), 260 states have internal predecessors, (362), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 03:56:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:59,221 INFO L93 Difference]: Finished difference Result 518 states and 719 transitions. [2021-11-03 03:56:59,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:56:59,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-03 03:56:59,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:59,238 INFO L225 Difference]: With dead ends: 518 [2021-11-03 03:56:59,238 INFO L226 Difference]: Without dead ends: 254 [2021-11-03 03:56:59,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 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 03:56:59,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-03 03:56:59,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-03 03:56:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 237 states have (on average 1.358649789029536) internal successors, (322), 253 states have internal predecessors, (322), 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 03:56:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 322 transitions. [2021-11-03 03:56:59,311 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 322 transitions. Word has length 44 [2021-11-03 03:56:59,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:59,311 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 322 transitions. [2021-11-03 03:56:59,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 03:56:59,312 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 322 transitions. [2021-11-03 03:56:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 03:56:59,315 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:59,315 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] [2021-11-03 03:56:59,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:59,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:59,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:56:59,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash -705539408, now seen corresponding path program 1 times [2021-11-03 03:56:59,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:59,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826109992] [2021-11-03 03:56:59,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:59,539 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:59,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:59,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:59,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:57:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:03,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:57:03,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:04,185 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 03:57:04,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:04,439 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 03:57:04,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:04,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826109992] [2021-11-03 03:57:04,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826109992] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:04,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:04,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:57:04,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586327801] [2021-11-03 03:57:04,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:04,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:04,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:04,444 INFO L87 Difference]: Start difference. First operand 254 states and 322 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 03:57:07,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:07,003 INFO L93 Difference]: Finished difference Result 676 states and 855 transitions. [2021-11-03 03:57:07,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:07,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2021-11-03 03:57:07,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:07,008 INFO L225 Difference]: With dead ends: 676 [2021-11-03 03:57:07,008 INFO L226 Difference]: Without dead ends: 448 [2021-11-03 03:57:07,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 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 03:57:07,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-11-03 03:57:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 354. [2021-11-03 03:57:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 337 states have (on average 1.3649851632047478) internal successors, (460), 353 states have internal predecessors, (460), 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 03:57:07,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 460 transitions. [2021-11-03 03:57:07,038 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 460 transitions. Word has length 44 [2021-11-03 03:57:07,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:07,038 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 460 transitions. [2021-11-03 03:57:07,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 03:57:07,039 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 460 transitions. [2021-11-03 03:57:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:57:07,041 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:07,041 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] [2021-11-03 03:57:07,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:07,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:07,248 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:57:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:07,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1240202915, now seen corresponding path program 1 times [2021-11-03 03:57:07,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:07,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072919380] [2021-11-03 03:57:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:07,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:07,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:07,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:07,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:57:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:11,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:57:11,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:11,830 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 03:57:11,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:12,060 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 03:57:12,060 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:12,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072919380] [2021-11-03 03:57:12,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072919380] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:12,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:12,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:57:12,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977560128] [2021-11-03 03:57:12,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:12,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:12,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:12,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:12,063 INFO L87 Difference]: Start difference. First operand 354 states and 460 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 03:57:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:12,691 INFO L93 Difference]: Finished difference Result 803 states and 1056 transitions. [2021-11-03 03:57:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:12,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2021-11-03 03:57:12,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:12,695 INFO L225 Difference]: With dead ends: 803 [2021-11-03 03:57:12,695 INFO L226 Difference]: Without dead ends: 474 [2021-11-03 03:57:12,696 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 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 03:57:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-03 03:57:12,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 378. [2021-11-03 03:57:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 361 states have (on average 1.3407202216066483) internal successors, (484), 377 states have internal predecessors, (484), 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 03:57:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 484 transitions. [2021-11-03 03:57:12,717 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 484 transitions. Word has length 50 [2021-11-03 03:57:12,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:12,718 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 484 transitions. [2021-11-03 03:57:12,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 03:57:12,718 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 484 transitions. [2021-11-03 03:57:12,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:57:12,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:12,721 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] [2021-11-03 03:57:12,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:12,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:12,922 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:57:12,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:12,923 INFO L85 PathProgramCache]: Analyzing trace with hash -396197413, now seen corresponding path program 1 times [2021-11-03 03:57:12,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:12,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792384636] [2021-11-03 03:57:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:12,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:12,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:12,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:12,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:57:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:17,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 03:57:17,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:17,519 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 03:57:17,922 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 03:57:17,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:18,287 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 03:57:18,609 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 03:57:18,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:18,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792384636] [2021-11-03 03:57:18,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792384636] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:18,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:18,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 03:57:18,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575626793] [2021-11-03 03:57:18,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 03:57:18,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:18,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 03:57:18,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:57:18,612 INFO L87 Difference]: Start difference. First operand 378 states and 484 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 03:57:44,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:44,307 INFO L93 Difference]: Finished difference Result 931 states and 1185 transitions. [2021-11-03 03:57:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 03:57:44,310 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 50 [2021-11-03 03:57:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:44,314 INFO L225 Difference]: With dead ends: 931 [2021-11-03 03:57:44,314 INFO L226 Difference]: Without dead ends: 580 [2021-11-03 03:57:44,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-11-03 03:57:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-11-03 03:57:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 376. [2021-11-03 03:57:44,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 359 states have (on average 1.33983286908078) internal successors, (481), 375 states have internal predecessors, (481), 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 03:57:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 481 transitions. [2021-11-03 03:57:44,336 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 481 transitions. Word has length 50 [2021-11-03 03:57:44,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:44,337 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 481 transitions. [2021-11-03 03:57:44,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 03:57:44,338 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 481 transitions. [2021-11-03 03:57:44,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 03:57:44,341 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:44,341 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, 1] [2021-11-03 03:57:44,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:44,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:44,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:57:44,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash 31619173, now seen corresponding path program 1 times [2021-11-03 03:57:44,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:44,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948668142] [2021-11-03 03:57:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:44,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:44,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:44,569 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:44,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:57:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:49,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:57:49,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:49,450 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 03:57:49,450 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 03:57:49,680 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 03:57:49,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:50,255 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 03:57:50,255 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:50,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948668142] [2021-11-03 03:57:50,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948668142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:50,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:50,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 03:57:50,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048132780] [2021-11-03 03:57:50,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:57:50,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:50,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:57:50,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:57:50,259 INFO L87 Difference]: Start difference. First operand 376 states and 481 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 03:58:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:05,698 INFO L93 Difference]: Finished difference Result 1167 states and 1477 transitions. [2021-11-03 03:58:05,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:58:05,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 54 [2021-11-03 03:58:05,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:05,707 INFO L225 Difference]: With dead ends: 1167 [2021-11-03 03:58:05,707 INFO L226 Difference]: Without dead ends: 811 [2021-11-03 03:58:05,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:58:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2021-11-03 03:58:05,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 458. [2021-11-03 03:58:05,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 441 states have (on average 1.3287981859410432) internal successors, (586), 457 states have internal predecessors, (586), 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 03:58:05,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 586 transitions. [2021-11-03 03:58:05,732 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 586 transitions. Word has length 54 [2021-11-03 03:58:05,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:05,733 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 586 transitions. [2021-11-03 03:58:05,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 03:58:05,733 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 586 transitions. [2021-11-03 03:58:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 03:58:05,736 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:05,736 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, 1] [2021-11-03 03:58:05,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:58:05,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:58:05,955 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:58:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:05,956 INFO L85 PathProgramCache]: Analyzing trace with hash -362747613, now seen corresponding path program 1 times [2021-11-03 03:58:05,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:58:05,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858197314] [2021-11-03 03:58:05,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:05,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:58:05,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:58:05,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:58:05,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:58:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:10,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 03:58:10,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:10,925 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 03:58:10,925 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 03:58:11,481 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 03:58:11,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:12,260 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 03:58:12,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:58:12,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858197314] [2021-11-03 03:58:12,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858197314] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:58:12,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:58:12,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 03:58:12,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714765231] [2021-11-03 03:58:12,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 03:58:12,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:58:12,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 03:58:12,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:58:12,263 INFO L87 Difference]: Start difference. First operand 458 states and 586 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 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 03:58:45,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:45,726 INFO L93 Difference]: Finished difference Result 1456 states and 1775 transitions. [2021-11-03 03:58:45,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 03:58:45,731 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 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 54 [2021-11-03 03:58:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:45,737 INFO L225 Difference]: With dead ends: 1456 [2021-11-03 03:58:45,737 INFO L226 Difference]: Without dead ends: 899 [2021-11-03 03:58:45,739 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 03:58:45,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2021-11-03 03:58:45,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 450. [2021-11-03 03:58:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 433 states have (on average 1.2702078521939955) internal successors, (550), 449 states have internal predecessors, (550), 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 03:58:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 550 transitions. [2021-11-03 03:58:45,765 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 550 transitions. Word has length 54 [2021-11-03 03:58:45,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:45,766 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 550 transitions. [2021-11-03 03:58:45,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 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 03:58:45,766 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 550 transitions. [2021-11-03 03:58:45,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 03:58:45,767 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:45,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:58:45,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:58:45,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:58:45,984 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:58:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash -229471252, now seen corresponding path program 1 times [2021-11-03 03:58:45,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:58:45,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095890561] [2021-11-03 03:58:45,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:45,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:58:45,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:58:45,988 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:58:45,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_800110fb-6593-4e1d-a2ba-f0191c4a73c8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:58:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:50,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-03 03:58:50,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:54,763 INFO L354 Elim1Store]: treesize reduction 1202, result has 0.1 percent of original size [2021-11-03 03:58:54,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 225 treesize of output 69 [2021-11-03 03:58:55,320 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 03:58:55,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:35,430 WARN L207 SmtUtils]: Spent 35.43 s on a formula simplification. DAG size of input: 1166 DAG size of output: 513 [2021-11-03 03:59:35,438 INFO L354 Elim1Store]: treesize reduction 2280, result has 39.2 percent of original size [2021-11-03 03:59:35,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 252 treesize of output 1538