./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_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_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/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_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/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_24a28c7e-767d-4ef9-9660-87c5244de70c/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 ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:25:22,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:25:22,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:25:22,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:25:22,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:25:22,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:25:22,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:25:22,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:25:22,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:25:22,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:25:22,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:25:22,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:25:22,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:25:22,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:25:22,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:25:22,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:25:22,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:25:22,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:25:22,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:25:22,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:25:22,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:25:22,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:25:22,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:25:22,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:25:22,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:25:22,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:25:22,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:25:22,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:25:22,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:25:22,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:25:22,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:25:22,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:25:22,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:25:22,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:25:22,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:25:22,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:25:22,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:25:22,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:25:22,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:25:22,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:25:22,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:25:22,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:25:22,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:25:22,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:25:22,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:25:22,609 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:25:22,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:25:22,610 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:25:22,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:25:22,610 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:25:22,610 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:25:22,611 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:25:22,611 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:25:22,611 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:25:22,611 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:25:22,611 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:25:22,612 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:25:22,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:25:22,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:25:22,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:25:22,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:25:22,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:25:22,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:25:22,614 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:25:22,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:25:22,614 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:25:22,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:25:22,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:25:22,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:25:22,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:25:22,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:25:22,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:25:22,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:25:22,623 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:25:22,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:25:22,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:25:22,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:25:22,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:25:22,625 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_24a28c7e-767d-4ef9-9660-87c5244de70c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 [2021-11-03 04:25:22,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:25:22,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:25:22,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:25:22,912 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:25:22,913 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:25:22,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-03 04:25:22,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/c533fa729/54fdf9794bc54bdc9c30652fa2068dcd/FLAG39d864fa9 [2021-11-03 04:25:23,829 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:25:23,830 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-03 04:25:23,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/c533fa729/54fdf9794bc54bdc9c30652fa2068dcd/FLAG39d864fa9 [2021-11-03 04:25:24,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/c533fa729/54fdf9794bc54bdc9c30652fa2068dcd [2021-11-03 04:25:24,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:25:24,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:25:24,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:25:24,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:25:24,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:25:24,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:25:24" (1/1) ... [2021-11-03 04:25:24,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5174084d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:24, skipping insertion in model container [2021-11-03 04:25:24,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:25:24" (1/1) ... [2021-11-03 04:25:24,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:25:24,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:25:24,795 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-03 04:25:24,803 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-03 04:25:24,830 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:25:24,836 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:25:25,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:25,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:26,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:25:26,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:25:26,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:25:26,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:25:26,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:25:26,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:25:26,413 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:25:26,414 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:25:26,414 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:25:26,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:25:26,632 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:25:26,648 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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:25:26,667 INFO L168 Benchmark]: Toolchain (without parser) took 2349.29 ms. Allocated memory is still 123.7 MB. Free memory was 89.9 MB in the beginning and 54.1 MB in the end (delta: 35.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:25:26,668 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 123.7 MB. Free memory was 81.3 MB in the beginning and 81.2 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:25:26,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2346.69 ms. Allocated memory is still 123.7 MB. Free memory was 89.5 MB in the beginning and 54.1 MB in the end (delta: 35.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:25:26,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 123.7 MB. Free memory was 81.3 MB in the beginning and 81.2 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2346.69 ms. Allocated memory is still 123.7 MB. Free memory was 89.5 MB in the beginning and 54.1 MB in the end (delta: 35.5 MB). Peak memory consumption was 37.7 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_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/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_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/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_24a28c7e-767d-4ef9-9660-87c5244de70c/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 ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:25:28,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:25:28,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:25:28,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:25:28,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:25:28,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:25:28,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:25:28,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:25:29,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:25:29,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:25:29,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:25:29,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:25:29,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:25:29,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:25:29,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:25:29,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:25:29,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:25:29,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:25:29,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:25:29,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:25:29,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:25:29,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:25:29,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:25:29,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:25:29,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:25:29,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:25:29,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:25:29,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:25:29,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:25:29,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:25:29,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:25:29,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:25:29,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:25:29,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:25:29,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:25:29,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:25:29,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:25:29,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:25:29,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:25:29,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:25:29,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:25:29,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:25:29,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:25:29,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:25:29,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:25:29,067 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:25:29,067 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:25:29,068 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:25:29,068 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:25:29,068 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:25:29,068 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:25:29,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:25:29,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:25:29,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:25:29,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:25:29,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:25:29,071 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:25:29,071 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:25:29,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:25:29,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:25:29,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:25:29,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:25:29,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:25:29,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:25:29,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:25:29,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:25:29,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:25:29,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:25:29,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:25:29,074 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:25:29,074 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:25:29,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:25:29,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:25:29,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:25:29,075 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_24a28c7e-767d-4ef9-9660-87c5244de70c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 [2021-11-03 04:25:29,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:25:29,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:25:29,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:25:29,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:25:29,512 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:25:29,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-03 04:25:29,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/7b30388f1/603f5895aa304bdea192dc21323d0ae8/FLAGa28def2c2 [2021-11-03 04:25:30,551 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:25:30,552 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-03 04:25:30,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/7b30388f1/603f5895aa304bdea192dc21323d0ae8/FLAGa28def2c2 [2021-11-03 04:25:30,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/data/7b30388f1/603f5895aa304bdea192dc21323d0ae8 [2021-11-03 04:25:30,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:25:30,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:25:30,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:25:30,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:25:30,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:25:30,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:25:30" (1/1) ... [2021-11-03 04:25:31,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2436d2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:31, skipping insertion in model container [2021-11-03 04:25:31,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:25:30" (1/1) ... [2021-11-03 04:25:31,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:25:31,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:25:31,597 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-03 04:25:31,605 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-03 04:25:31,636 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:25:31,643 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:25:32,975 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:32,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:32,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:32,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:32,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:32,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:32,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:33,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:33,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:33,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:25:33,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:25:33,583 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:25:33,585 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:25:33,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:25:33,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:25:33,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:25:33,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:25:33,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:25:33,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:25:33,834 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:25:33,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:33,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,356 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:25:34,518 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:25:34,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:25:34,582 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-03 04:25:34,583 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-03 04:25:34,584 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:25:34,584 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:25:34,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,716 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:25:34,717 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:25:34,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:25:34,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:25:34,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:25:34,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:25:34,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:25:34,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:25:34,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:25:34,722 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:25:34,752 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:25:34,799 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,801 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:34,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:25:35,014 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:25:35,039 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-03 04:25:35,039 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_24a28c7e-767d-4ef9-9660-87c5244de70c/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-03 04:25:35,041 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:25:35,042 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:25:35,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:25:35,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:25:35,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:25:35,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:25:35,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:25:35,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:25:35,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:25:35,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:25:35,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:25:35,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:25:35,156 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:25:35,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:25:35,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:25:35,736 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:25:35,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35 WrapperNode [2021-11-03 04:25:35,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:25:35,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:25:35,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:25:35,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:25:35,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:35,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:25:36,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:25:36,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:25:36,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:25:36,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:25:36,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:25:36,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:25:36,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:25:36,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (1/1) ... [2021-11-03 04:25:36,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:25:36,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:25:36,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:25:36,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:25:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:25:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:25:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:25:36,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:25:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:25:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:25:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:25:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:25:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:25:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:25:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:25:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:25:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:25:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:25:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:25:52,833 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !true; [2021-11-03 04:25:52,841 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:25:52,842 INFO L299 CfgBuilder]: Removed 43 assume(true) statements. [2021-11-03 04:25:52,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:25:52 BoogieIcfgContainer [2021-11-03 04:25:52,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:25:52,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:25:52,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:25:52,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:25:52,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:25:30" (1/3) ... [2021-11-03 04:25:52,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353e5369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:25:52, skipping insertion in model container [2021-11-03 04:25:52,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:25:35" (2/3) ... [2021-11-03 04:25:52,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353e5369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:25:52, skipping insertion in model container [2021-11-03 04:25:52,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:25:52" (3/3) ... [2021-11-03 04:25:52,851 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_byte_cursor_ptr_harness.i [2021-11-03 04:25:52,856 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:25:52,856 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-03 04:25:52,899 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:25:52,904 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 04:25:52,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-03 04:25:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 142 states have (on average 1.556338028169014) internal successors, (221), 144 states have internal predecessors, (221), 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 04:25:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 04:25:52,928 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:52,928 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] [2021-11-03 04:25:52,929 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:25:52,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:52,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1720806424, now seen corresponding path program 1 times [2021-11-03 04:25:52,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:52,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283571323] [2021-11-03 04:25:52,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:52,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:52,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:52,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:52,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:25:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:57,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:25:57,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:57,428 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 04:25:57,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:57,539 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 04:25:57,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:25:57,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283571323] [2021-11-03 04:25:57,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283571323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:25:57,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:25:57,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:25:57,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273966955] [2021-11-03 04:25:57,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:25:57,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:25:57,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:25:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:25:57,567 INFO L87 Difference]: Start difference. First operand has 145 states, 142 states have (on average 1.556338028169014) internal successors, (221), 144 states have internal predecessors, (221), 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 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 04:25:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:25:57,595 INFO L93 Difference]: Finished difference Result 285 states and 436 transitions. [2021-11-03 04:25:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:25:57,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-03 04:25:57,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:25:57,607 INFO L225 Difference]: With dead ends: 285 [2021-11-03 04:25:57,607 INFO L226 Difference]: Without dead ends: 139 [2021-11-03 04:25:57,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 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 04:25:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-03 04:25:57,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-03 04:25:57,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 137 states have (on average 1.4963503649635037) internal successors, (205), 138 states have internal predecessors, (205), 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 04:25:57,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 205 transitions. [2021-11-03 04:25:57,650 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 205 transitions. Word has length 33 [2021-11-03 04:25:57,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:25:57,650 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 205 transitions. [2021-11-03 04:25:57,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 04:25:57,651 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 205 transitions. [2021-11-03 04:25:57,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 04:25:57,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:57,653 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] [2021-11-03 04:25:57,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:25:57,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:25:57,868 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:25:57,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:57,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1998426598, now seen corresponding path program 1 times [2021-11-03 04:25:57,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:57,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231649046] [2021-11-03 04:25:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:57,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:57,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:57,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:57,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:26:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:01,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:26:01,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:02,174 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 04:26:02,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:02,357 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 04:26:02,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:26:02,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231649046] [2021-11-03 04:26:02,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231649046] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:26:02,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:26:02,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:26:02,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138508822] [2021-11-03 04:26:02,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:26:02,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:26:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:26:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:26:02,360 INFO L87 Difference]: Start difference. First operand 139 states and 205 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 04:26:02,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:02,503 INFO L93 Difference]: Finished difference Result 257 states and 383 transitions. [2021-11-03 04:26:02,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:26:02,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-11-03 04:26:02,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:02,505 INFO L225 Difference]: With dead ends: 257 [2021-11-03 04:26:02,506 INFO L226 Difference]: Without dead ends: 139 [2021-11-03 04:26:02,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 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 04:26:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-03 04:26:02,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-03 04:26:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 137 states have (on average 1.4744525547445255) internal successors, (202), 138 states have internal predecessors, (202), 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 04:26:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 202 transitions. [2021-11-03 04:26:02,518 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 202 transitions. Word has length 33 [2021-11-03 04:26:02,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:02,519 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 202 transitions. [2021-11-03 04:26:02,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 04:26:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 202 transitions. [2021-11-03 04:26:02,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:26:02,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:02,521 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] [2021-11-03 04:26:02,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:26:02,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:02,737 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:26:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:02,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1160971526, now seen corresponding path program 1 times [2021-11-03 04:26:02,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:02,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110566077] [2021-11-03 04:26:02,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:02,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:02,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:02,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:26:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:07,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 04:26:07,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:07,918 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-03 04:26:07,919 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 127 treesize of output 35 [2021-11-03 04:26:08,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:26:08,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:11,152 INFO L354 Elim1Store]: treesize reduction 1502, result has 4.5 percent of original size [2021-11-03 04:26:11,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 107 [2021-11-03 04:26:12,267 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 04:26:12,267 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:26:12,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110566077] [2021-11-03 04:26:12,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110566077] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:26:12,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:26:12,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-03 04:26:12,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943291618] [2021-11-03 04:26:12,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:26:12,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:26:12,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:26:12,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:26:12,273 INFO L87 Difference]: Start difference. First operand 139 states and 202 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:43,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:43,804 INFO L93 Difference]: Finished difference Result 358 states and 529 transitions. [2021-11-03 04:26:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 04:26:43,805 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-03 04:26:43,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:43,807 INFO L225 Difference]: With dead ends: 358 [2021-11-03 04:26:43,807 INFO L226 Difference]: Without dead ends: 261 [2021-11-03 04:26:43,809 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:26:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-03 04:26:43,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 177. [2021-11-03 04:26:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.417142857142857) internal successors, (248), 176 states have internal predecessors, (248), 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 04:26:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2021-11-03 04:26:43,826 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 37 [2021-11-03 04:26:43,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:43,827 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2021-11-03 04:26:43,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:43,828 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2021-11-03 04:26:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:26:43,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:43,830 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] [2021-11-03 04:26:43,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:26:44,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:44,032 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:26:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:44,032 INFO L85 PathProgramCache]: Analyzing trace with hash -710871608, now seen corresponding path program 1 times [2021-11-03 04:26:44,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:44,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021796520] [2021-11-03 04:26:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:44,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:44,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:44,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:26:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:48,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 04:26:48,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:49,102 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-03 04:26:49,103 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 127 treesize of output 35 [2021-11-03 04:26:49,475 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 04:26:49,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:52,478 INFO L354 Elim1Store]: treesize reduction 1502, result has 4.5 percent of original size [2021-11-03 04:26:52,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 107 [2021-11-03 04:26:53,438 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 04:26:53,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:26:53,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021796520] [2021-11-03 04:26:53,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021796520] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:26:53,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:26:53,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-03 04:26:53,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102633965] [2021-11-03 04:26:53,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:26:53,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:26:53,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:26:53,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:26:53,441 INFO L87 Difference]: Start difference. First operand 177 states and 248 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 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 04:27:20,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:27:20,610 INFO L93 Difference]: Finished difference Result 333 states and 456 transitions. [2021-11-03 04:27:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:27:20,610 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 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 39 [2021-11-03 04:27:20,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:27:20,612 INFO L225 Difference]: With dead ends: 333 [2021-11-03 04:27:20,612 INFO L226 Difference]: Without dead ends: 283 [2021-11-03 04:27:20,613 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-11-03 04:27:20,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-03 04:27:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 195. [2021-11-03 04:27:20,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 1.378238341968912) internal successors, (266), 194 states have internal predecessors, (266), 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 04:27:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 266 transitions. [2021-11-03 04:27:20,631 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 266 transitions. Word has length 39 [2021-11-03 04:27:20,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:27:20,632 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 266 transitions. [2021-11-03 04:27:20,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 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 04:27:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 266 transitions. [2021-11-03 04:27:20,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:27:20,634 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:27:20,634 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:27:20,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:27:20,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:27:20,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:27:20,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:27:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1458771954, now seen corresponding path program 1 times [2021-11-03 04:27:20,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:27:20,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157330208] [2021-11-03 04:27:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:27:20,859 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:27:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:27:20,860 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:27:20,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:27:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:27:24,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 04:27:24,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:27:25,094 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 13 treesize of output 9 [2021-11-03 04:27:25,108 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 13 treesize of output 9 [2021-11-03 04:27:25,658 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 04:27:25,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:27:26,023 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 38 treesize of output 32 [2021-11-03 04:27:26,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:26,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:26,250 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 04:27:26,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:27:26,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157330208] [2021-11-03 04:27:26,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157330208] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:27:26,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:27:26,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 17 [2021-11-03 04:27:26,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299027921] [2021-11-03 04:27:26,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-03 04:27:26,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:27:26,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-03 04:27:26,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-11-03 04:27:26,254 INFO L87 Difference]: Start difference. First operand 195 states and 266 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 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 04:27:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:27:49,799 INFO L93 Difference]: Finished difference Result 521 states and 685 transitions. [2021-11-03 04:27:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-03 04:27:49,800 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-03 04:27:49,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:27:49,803 INFO L225 Difference]: With dead ends: 521 [2021-11-03 04:27:49,803 INFO L226 Difference]: Without dead ends: 307 [2021-11-03 04:27:49,804 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2021-11-03 04:27:49,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-03 04:27:49,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 210. [2021-11-03 04:27:49,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.3221153846153846) internal successors, (275), 209 states have internal predecessors, (275), 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 04:27:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 275 transitions. [2021-11-03 04:27:49,822 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 275 transitions. Word has length 41 [2021-11-03 04:27:49,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:27:49,822 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 275 transitions. [2021-11-03 04:27:49,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 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 04:27:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 275 transitions. [2021-11-03 04:27:49,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:27:49,825 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:27:49,825 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] [2021-11-03 04:27:49,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:27:50,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:27:50,040 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:27:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:27:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash -481380642, now seen corresponding path program 1 times [2021-11-03 04:27:50,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:27:50,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387000995] [2021-11-03 04:27:50,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:27:50,043 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:27:50,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:27:50,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:27:50,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:27:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:27:54,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:27:54,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:27:54,550 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 04:27:54,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:27:54,837 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 04:27:54,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:27:54,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387000995] [2021-11-03 04:27:54,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387000995] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:27:54,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:27:54,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-03 04:27:54,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580803350] [2021-11-03 04:27:54,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:27:54,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:27:54,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:27:54,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:27:54,840 INFO L87 Difference]: Start difference. First operand 210 states and 275 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 04:28:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:07,157 INFO L93 Difference]: Finished difference Result 405 states and 529 transitions. [2021-11-03 04:28:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:28:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 46 [2021-11-03 04:28:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:07,160 INFO L225 Difference]: With dead ends: 405 [2021-11-03 04:28:07,160 INFO L226 Difference]: Without dead ends: 235 [2021-11-03 04:28:07,161 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:28:07,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-03 04:28:07,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 210. [2021-11-03 04:28:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 209 states have internal predecessors, (270), 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 04:28:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 270 transitions. [2021-11-03 04:28:07,175 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 270 transitions. Word has length 46 [2021-11-03 04:28:07,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:07,175 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 270 transitions. [2021-11-03 04:28:07,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 04:28:07,175 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 270 transitions. [2021-11-03 04:28:07,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:28:07,177 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:07,178 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] [2021-11-03 04:28:07,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:07,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:07,396 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:28:07,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:07,396 INFO L85 PathProgramCache]: Analyzing trace with hash 904822752, now seen corresponding path program 1 times [2021-11-03 04:28:07,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:07,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504818422] [2021-11-03 04:28:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:07,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:07,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:07,400 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:07,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a28c7e-767d-4ef9-9660-87c5244de70c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:28:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:11,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 04:28:11,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:12,213 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 04:28:12,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:21,868 WARN L207 SmtUtils]: Spent 8.97 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 04:28:21,871 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 04:28:21,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771