./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/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_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/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_eb119640-4361-4e76-b57b-d1377c8021dc/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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:31:04,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:31:04,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:31:04,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:31:04,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:31:04,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:31:04,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:31:04,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:31:04,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:31:04,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:31:04,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:31:04,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:31:04,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:31:04,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:31:04,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:31:04,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:31:04,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:31:04,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:31:04,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:31:04,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:31:04,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:31:04,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:31:04,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:31:04,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:31:04,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:31:04,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:31:04,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:31:04,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:31:04,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:31:04,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:31:04,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:31:04,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:31:04,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:31:04,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:31:04,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:31:04,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:31:04,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:31:04,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:31:04,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:31:04,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:31:04,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:31:04,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:31:04,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:31:04,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:31:04,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:31:04,982 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:31:04,983 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:31:04,983 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:31:04,983 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:31:04,983 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:31:04,984 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:31:04,984 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:31:04,991 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:31:04,991 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:31:04,992 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:31:04,992 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:31:04,992 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:31:04,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:31:04,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:31:04,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:31:04,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:31:04,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:31:04,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:31:04,995 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:31:04,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:31:04,996 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:31:04,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:31:04,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:31:04,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:31:04,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:31:04,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:31:04,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:31:04,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:31:05,000 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:31:05,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:31:05,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:31:05,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:31:05,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:31:05,001 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_eb119640-4361-4e76-b57b-d1377c8021dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2021-11-03 04:31:05,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:31:05,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:31:05,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:31:05,357 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:31:05,358 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:31:05,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-11-03 04:31:05,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/1d931e5bc/ddf3a6fd8e1046338b5c7ef8e4874a6e/FLAG4370f1e9e [2021-11-03 04:31:06,420 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:31:06,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-11-03 04:31:06,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/1d931e5bc/ddf3a6fd8e1046338b5c7ef8e4874a6e/FLAG4370f1e9e [2021-11-03 04:31:06,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/1d931e5bc/ddf3a6fd8e1046338b5c7ef8e4874a6e [2021-11-03 04:31:06,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:31:06,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:31:06,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:31:06,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:31:06,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:31:06,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:31:06" (1/1) ... [2021-11-03 04:31:06,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262d47e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:06, skipping insertion in model container [2021-11-03 04:31:06,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:31:06" (1/1) ... [2021-11-03 04:31:06,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:31:06,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:31:07,329 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-11-03 04:31:07,340 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-11-03 04:31:07,375 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:31:07,390 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:31:08,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:08,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:09,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:31:09,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:31:09,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:31:09,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:31:09,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:31:09,205 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:31:09,206 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:31:09,207 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:31:09,207 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:31:09,208 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:31:09,449 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:31:09,465 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:31:09,471 INFO L168 Benchmark]: Toolchain (without parser) took 2671.13 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 73.2 MB in the beginning and 91.0 MB in the end (delta: -17.8 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:31:09,472 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:31:09,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2668.28 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 72.8 MB in the beginning and 91.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:31:09,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2668.28 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 72.8 MB in the beginning and 91.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 37.1 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_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/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_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/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_eb119640-4361-4e76-b57b-d1377c8021dc/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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:31:11,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:31:11,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:31:11,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:31:11,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:31:11,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:31:11,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:31:11,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:31:11,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:31:11,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:31:11,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:31:11,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:31:11,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:31:11,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:31:11,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:31:11,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:31:11,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:31:11,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:31:11,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:31:11,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:31:11,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:31:11,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:31:11,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:31:11,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:31:11,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:31:11,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:31:11,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:31:11,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:31:11,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:31:11,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:31:11,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:31:11,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:31:11,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:31:11,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:31:11,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:31:11,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:31:11,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:31:11,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:31:11,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:31:11,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:31:11,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:31:11,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:31:11,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:31:11,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:31:11,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:31:11,820 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:31:11,820 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:31:11,821 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:31:11,821 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:31:11,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:31:11,821 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:31:11,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:31:11,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:31:11,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:31:11,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:31:11,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:31:11,823 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:31:11,823 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:31:11,824 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:31:11,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:31:11,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:31:11,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:31:11,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:31:11,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:31:11,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:31:11,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:31:11,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:31:11,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:31:11,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:31:11,826 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:31:11,826 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:31:11,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:31:11,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:31:11,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:31:11,827 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_eb119640-4361-4e76-b57b-d1377c8021dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2021-11-03 04:31:12,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:31:12,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:31:12,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:31:12,216 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:31:12,216 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:31:12,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-11-03 04:31:12,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/b88165f60/486a945e513e448aa73034733a6cd01b/FLAGea8a8dd57 [2021-11-03 04:31:13,169 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:31:13,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-11-03 04:31:13,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/b88165f60/486a945e513e448aa73034733a6cd01b/FLAGea8a8dd57 [2021-11-03 04:31:13,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/data/b88165f60/486a945e513e448aa73034733a6cd01b [2021-11-03 04:31:13,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:31:13,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:31:13,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:31:13,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:31:13,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:31:13,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:31:13" (1/1) ... [2021-11-03 04:31:13,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c543d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:13, skipping insertion in model container [2021-11-03 04:31:13,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:31:13" (1/1) ... [2021-11-03 04:31:13,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:31:13,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:31:14,125 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-11-03 04:31:14,133 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-11-03 04:31:14,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:31:14,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:31:15,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:15,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:31:15,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:31:15,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:31:15,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:31:15,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:31:15,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:31:15,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:31:15,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:31:15,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:31:15,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:31:16,167 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:31:16,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:16,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:31:16,838 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:31:16,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:31:16,985 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-11-03 04:31:16,985 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-11-03 04:31:17,000 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:31:17,001 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:31:17,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,163 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:31:17,164 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:31:17,165 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:31:17,175 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:31:17,176 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:31:17,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:31:17,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:31:17,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:31:17,178 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:31:17,178 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:31:17,197 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:31:17,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:31:17,481 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:31:17,506 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-11-03 04:31:17,507 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_eb119640-4361-4e76-b57b-d1377c8021dc/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-11-03 04:31:17,509 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:31:17,510 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:31:17,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,623 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:31:17,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:31:17,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:31:17,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:31:17,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:31:17,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:31:17,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:31:17,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:31:17,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:31:17,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:31:17,742 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:31:17,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,942 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,943 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:17,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:31:18,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:31:18,276 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:31:18,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18 WrapperNode [2021-11-03 04:31:18,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:31:18,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:31:18,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:31:18,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:31:18,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:31:18,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:31:18,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:31:18,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:31:18,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:31:18,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:31:18,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:31:18,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:31:18,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (1/1) ... [2021-11-03 04:31:18,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:31:18,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:31:18,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:31:18,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:31:18,696 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 04:31:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:31:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:31:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:31:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:31:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:31:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:31:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:31:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:31:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:31:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:31:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:31:20,551 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume !true; [2021-11-03 04:31:20,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:31:20,559 INFO L299 CfgBuilder]: Removed 86 assume(true) statements. [2021-11-03 04:31:20,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:31:20 BoogieIcfgContainer [2021-11-03 04:31:20,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:31:20,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:31:20,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:31:20,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:31:20,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:31:13" (1/3) ... [2021-11-03 04:31:20,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8407b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:31:20, skipping insertion in model container [2021-11-03 04:31:20,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:31:18" (2/3) ... [2021-11-03 04:31:20,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8407b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:31:20, skipping insertion in model container [2021-11-03 04:31:20,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:31:20" (3/3) ... [2021-11-03 04:31:20,577 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2021-11-03 04:31:20,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:31:20,585 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 04:31:20,643 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:31:20,659 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 04:31:20,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 04:31:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 100 states have internal predecessors, (136), 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 04:31:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 04:31:20,687 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:20,688 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] [2021-11-03 04:31:20,688 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:31:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1460465419, now seen corresponding path program 1 times [2021-11-03 04:31:20,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:20,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874098277] [2021-11-03 04:31:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:20,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:20,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:20,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:20,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:31:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:21,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:31:21,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:21,233 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 04:31:21,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:21,318 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 04:31:21,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:21,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874098277] [2021-11-03 04:31:21,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874098277] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:21,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:21,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:31:21,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552862811] [2021-11-03 04:31:21,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:31:21,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:21,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:31:21,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:31:21,341 INFO L87 Difference]: Start difference. First operand has 101 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 100 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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 04:31:21,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:21,364 INFO L93 Difference]: Finished difference Result 198 states and 267 transitions. [2021-11-03 04:31:21,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:31:21,366 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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 45 [2021-11-03 04:31:21,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:21,374 INFO L225 Difference]: With dead ends: 198 [2021-11-03 04:31:21,374 INFO L226 Difference]: Without dead ends: 95 [2021-11-03 04:31:21,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 04:31:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-03 04:31:21,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-03 04:31:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2307692307692308) internal successors, (112), 94 states have internal predecessors, (112), 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 04:31:21,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 112 transitions. [2021-11-03 04:31:21,413 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 112 transitions. Word has length 45 [2021-11-03 04:31:21,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:21,414 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 112 transitions. [2021-11-03 04:31:21,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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 04:31:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 112 transitions. [2021-11-03 04:31:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:31:21,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:21,416 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 04:31:21,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:21,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:21,632 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:31:21,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:21,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1370581995, now seen corresponding path program 1 times [2021-11-03 04:31:21,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:21,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998780623] [2021-11-03 04:31:21,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:21,634 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:21,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:21,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:21,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:31:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:22,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 04:31:22,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:22,365 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 04:31:22,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:22,596 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 04:31:22,596 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:22,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998780623] [2021-11-03 04:31:22,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998780623] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:22,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:22,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 12 [2021-11-03 04:31:22,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456581772] [2021-11-03 04:31:22,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:31:22,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:22,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:31:22,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:31:22,603 INFO L87 Difference]: Start difference. First operand 95 states and 112 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 04:31:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:26,317 INFO L93 Difference]: Finished difference Result 201 states and 236 transitions. [2021-11-03 04:31:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 04:31:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 04:31:26,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:26,322 INFO L225 Difference]: With dead ends: 201 [2021-11-03 04:31:26,322 INFO L226 Difference]: Without dead ends: 136 [2021-11-03 04:31:26,323 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:31:26,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-03 04:31:26,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 95. [2021-11-03 04:31:26,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 94 states have internal predecessors, (108), 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 04:31:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-11-03 04:31:26,337 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 46 [2021-11-03 04:31:26,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:26,337 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-11-03 04:31:26,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 04:31:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-11-03 04:31:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:31:26,339 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:26,339 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 04:31:26,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:26,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:26,559 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:31:26,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash 947880169, now seen corresponding path program 1 times [2021-11-03 04:31:26,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:26,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428685415] [2021-11-03 04:31:26,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:26,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:26,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:26,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:26,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:31:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:27,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:31:27,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:27,285 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 04:31:27,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:27,446 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 04:31:27,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:27,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428685415] [2021-11-03 04:31:27,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428685415] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:27,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:27,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-03 04:31:27,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367745406] [2021-11-03 04:31:27,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:31:27,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:27,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:31:27,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:31:27,448 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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 04:31:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:29,437 INFO L93 Difference]: Finished difference Result 141 states and 161 transitions. [2021-11-03 04:31:29,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:31:29,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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 04:31:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:29,441 INFO L225 Difference]: With dead ends: 141 [2021-11-03 04:31:29,441 INFO L226 Difference]: Without dead ends: 95 [2021-11-03 04:31:29,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:31:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-03 04:31:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-03 04:31:29,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.1758241758241759) internal successors, (107), 94 states have internal predecessors, (107), 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 04:31:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2021-11-03 04:31:29,456 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 46 [2021-11-03 04:31:29,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:29,457 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2021-11-03 04:31:29,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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 04:31:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2021-11-03 04:31:29,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 04:31:29,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:29,463 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:29,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:29,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:29,686 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:31:29,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash 479564307, now seen corresponding path program 1 times [2021-11-03 04:31:29,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:29,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269398077] [2021-11-03 04:31:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:29,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:29,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:29,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:29,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:31:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:30,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:31:30,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:30,446 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 04:31:30,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:30,635 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 04:31:30,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:30,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269398077] [2021-11-03 04:31:30,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269398077] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:30,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:30,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 11 [2021-11-03 04:31:30,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413832118] [2021-11-03 04:31:30,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:31:30,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:30,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:31:30,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:31:30,638 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 04:31:33,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:33,328 INFO L93 Difference]: Finished difference Result 132 states and 148 transitions. [2021-11-03 04:31:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 04:31:33,330 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 51 [2021-11-03 04:31:33,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:33,331 INFO L225 Difference]: With dead ends: 132 [2021-11-03 04:31:33,331 INFO L226 Difference]: Without dead ends: 95 [2021-11-03 04:31:33,332 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:31:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-03 04:31:33,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-03 04:31:33,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.164835164835165) internal successors, (106), 94 states have internal predecessors, (106), 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 04:31:33,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2021-11-03 04:31:33,343 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 51 [2021-11-03 04:31:33,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:33,343 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2021-11-03 04:31:33,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 04:31:33,344 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2021-11-03 04:31:33,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 04:31:33,345 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:33,346 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:33,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:33,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:33,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:31:33,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:33,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1733405211, now seen corresponding path program 1 times [2021-11-03 04:31:33,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:33,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728204590] [2021-11-03 04:31:33,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:33,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:33,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:33,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:33,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:31:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:34,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:31:34,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:34,385 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 04:31:34,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:34,589 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 04:31:34,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:34,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728204590] [2021-11-03 04:31:34,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728204590] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:34,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:34,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-03 04:31:34,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236403735] [2021-11-03 04:31:34,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:31:34,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:34,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:31:34,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:31:34,592 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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 04:31:36,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:36,820 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2021-11-03 04:31:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 04:31:36,823 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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 56 [2021-11-03 04:31:36,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:36,824 INFO L225 Difference]: With dead ends: 116 [2021-11-03 04:31:36,824 INFO L226 Difference]: Without dead ends: 95 [2021-11-03 04:31:36,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:31:36,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-03 04:31:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-03 04:31:36,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.1538461538461537) internal successors, (105), 94 states have internal predecessors, (105), 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 04:31:36,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2021-11-03 04:31:36,834 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 56 [2021-11-03 04:31:36,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:36,834 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2021-11-03 04:31:36,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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 04:31:36,834 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2021-11-03 04:31:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:31:36,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:36,836 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:36,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 04:31:37,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:37,052 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:31:37,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2102829230, now seen corresponding path program 1 times [2021-11-03 04:31:37,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:37,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648636080] [2021-11-03 04:31:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:37,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:37,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:37,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:37,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:31:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:37,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 04:31:37,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:38,002 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 04:31:38,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:38,274 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 04:31:38,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:38,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648636080] [2021-11-03 04:31:38,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648636080] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:38,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:38,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2021-11-03 04:31:38,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186843870] [2021-11-03 04:31:38,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 04:31:38,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 04:31:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:31:38,276 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 04:31:42,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:42,496 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2021-11-03 04:31:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:31:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 57 [2021-11-03 04:31:42,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:42,498 INFO L225 Difference]: With dead ends: 95 [2021-11-03 04:31:42,498 INFO L226 Difference]: Without dead ends: 93 [2021-11-03 04:31:42,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2021-11-03 04:31:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-03 04:31:42,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-03 04:31:42,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 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 04:31:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2021-11-03 04:31:42,510 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 57 [2021-11-03 04:31:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:42,510 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2021-11-03 04:31:42,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 04:31:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2021-11-03 04:31:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 04:31:42,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:42,512 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:42,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 04:31:42,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:42,724 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:31:42,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1291137303, now seen corresponding path program 1 times [2021-11-03 04:31:42,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:42,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855076986] [2021-11-03 04:31:42,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:42,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:42,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:42,727 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:42,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb119640-4361-4e76-b57b-d1377c8021dc/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:31:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:43,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 04:31:43,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:44,237 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 04:31:44,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:57,001 WARN L207 SmtUtils]: Spent 12.69 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 04:31:57,020 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 04:31:57,021 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 127 treesize of output 767