./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:10:43,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:10:43,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:10:43,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:10:43,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:10:43,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:10:43,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:10:43,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:10:43,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:10:44,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:10:44,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:10:44,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:10:44,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:10:44,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:10:44,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:10:44,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:10:44,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:10:44,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:10:44,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:10:44,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:10:44,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:10:44,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:10:44,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:10:44,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:10:44,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:10:44,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:10:44,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:10:44,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:10:44,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:10:44,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:10:44,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:10:44,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:10:44,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:10:44,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:10:44,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:10:44,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:10:44,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:10:44,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:10:44,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:10:44,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:10:44,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:10:44,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:10:44,089 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:10:44,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:10:44,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:10:44,090 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:10:44,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:10:44,091 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:10:44,091 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:10:44,091 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:10:44,091 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:10:44,091 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:10:44,092 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:10:44,092 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:10:44,092 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:10:44,092 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:10:44,092 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:10:44,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:10:44,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:10:44,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:10:44,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:10:44,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:10:44,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:10:44,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:10:44,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:10:44,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:10:44,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:10:44,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:10:44,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:10:44,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:44,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:10:44,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:10:44,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:10:44,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:10:44,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:10:44,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:10:44,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:10:44,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:10:44,097 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2021-11-03 04:10:44,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:10:44,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:10:44,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:10:44,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:10:44,405 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:10:44,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-03 04:10:44,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/675be1009/2d7b1e01475344f29fe114b8df4afcf1/FLAGda04ea4cc [2021-11-03 04:10:45,304 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:10:45,304 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-03 04:10:45,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/675be1009/2d7b1e01475344f29fe114b8df4afcf1/FLAGda04ea4cc [2021-11-03 04:10:45,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/675be1009/2d7b1e01475344f29fe114b8df4afcf1 [2021-11-03 04:10:45,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:10:45,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:10:45,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:45,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:10:45,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:10:45,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:45" (1/1) ... [2021-11-03 04:10:45,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bb92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:45, skipping insertion in model container [2021-11-03 04:10:45,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:45" (1/1) ... [2021-11-03 04:10:45,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:10:45,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:10:46,270 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-03 04:10:46,277 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-03 04:10:46,303 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:10:46,310 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:10:47,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:47,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:10:47,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:10:47,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:10:47,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:10:47,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:10:47,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:10:47,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:10:47,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:10:47,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:10:47,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:10:47,983 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:10:48,011 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:10:48,017 INFO L168 Benchmark]: Toolchain (without parser) took 2221.90 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 60.1 MB in the beginning and 100.8 MB in the end (delta: -40.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:48,025 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 107.0 MB. Free memory was 85.4 MB in the beginning and 85.4 MB in the end (delta: 64.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:10:48,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2217.64 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 59.9 MB in the beginning and 100.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:48,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 107.0 MB. Free memory was 85.4 MB in the beginning and 85.4 MB in the end (delta: 64.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2217.64 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 59.9 MB in the beginning and 100.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:10:50,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:10:50,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:10:50,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:10:50,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:10:50,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:10:50,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:10:50,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:10:50,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:10:50,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:10:50,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:10:50,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:10:50,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:10:50,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:10:50,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:10:50,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:10:50,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:10:50,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:10:50,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:10:50,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:10:50,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:10:50,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:10:50,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:10:50,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:10:50,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:10:50,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:10:50,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:10:50,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:10:50,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:10:50,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:10:50,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:10:50,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:10:50,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:10:50,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:10:50,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:10:50,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:10:50,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:10:50,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:10:50,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:10:50,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:10:50,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:10:50,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:10:50,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:10:50,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:10:50,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:10:50,348 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:10:50,349 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:10:50,349 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:10:50,350 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:10:50,350 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:10:50,350 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:10:50,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:10:50,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:10:50,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:10:50,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:10:50,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:10:50,353 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:10:50,353 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:10:50,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:10:50,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:10:50,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:10:50,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:10:50,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:10:50,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:10:50,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:10:50,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:50,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:10:50,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:10:50,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:10:50,356 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:10:50,357 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:10:50,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:10:50,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:10:50,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:10:50,358 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2021-11-03 04:10:50,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:10:50,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:10:50,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:10:50,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:10:50,720 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:10:50,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-03 04:10:50,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/dc8b81094/85b08bdb467a41aa8ed68de0c98bda04/FLAGe167e4c97 [2021-11-03 04:10:51,678 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:10:51,679 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-03 04:10:51,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/dc8b81094/85b08bdb467a41aa8ed68de0c98bda04/FLAGe167e4c97 [2021-11-03 04:10:52,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/data/dc8b81094/85b08bdb467a41aa8ed68de0c98bda04 [2021-11-03 04:10:52,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:10:52,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:10:52,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:52,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:10:52,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:10:52,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:52" (1/1) ... [2021-11-03 04:10:52,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc5f38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:52, skipping insertion in model container [2021-11-03 04:10:52,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:52" (1/1) ... [2021-11-03 04:10:52,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:10:52,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:10:52,458 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-03 04:10:52,465 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-03 04:10:52,498 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:10:52,503 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:10:53,462 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,464 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:53,972 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:10:53,973 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:10:53,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:10:53,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:10:53,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:10:53,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:10:53,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:10:53,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:10:53,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:10:53,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:10:54,196 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:10:54,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:54,466 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:10:54,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:10:54,511 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-03 04:10:54,512 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-03 04:10:54,513 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:10:54,514 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:10:54,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:10:54,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:10:54,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:10:54,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:10:54,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:10:54,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:10:54,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:10:54,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:10:54,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:10:54,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:10:54,634 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:10:54,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:54,802 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:10:54,829 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-03 04:10:54,830 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_981d5106-cd59-4cbb-ab4f-a31690ce4a78/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-03 04:10:54,832 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:10:54,832 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:10:54,889 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,889 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:54,933 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:10:54,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:10:54,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:10:54,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:10:54,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:10:54,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:10:54,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:10:54,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:10:54,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:10:54,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:10:54,966 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:10:55,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:55,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:10:55,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:55,462 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:10:55,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55 WrapperNode [2021-11-03 04:10:55,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:55,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:10:55,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:10:55,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:10:55,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:55,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:55,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:10:55,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:10:55,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:10:55,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:10:55,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:55,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:55,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:55,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:55,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:56,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:56,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:56,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:10:56,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:10:56,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:10:56,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:10:56,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (1/1) ... [2021-11-03 04:10:56,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:56,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:10:56,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:10:56,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:10:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:10:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:10:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:10:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:10:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:10:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:10:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:10:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:10:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:10:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:10:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:10:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:10:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:10:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:11:12,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:11:12,259 INFO L299 CfgBuilder]: Removed 130 assume(true) statements. [2021-11-03 04:11:12,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:12 BoogieIcfgContainer [2021-11-03 04:11:12,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:11:12,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:11:12,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:11:12,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:11:12,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:10:52" (1/3) ... [2021-11-03 04:11:12,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7004e864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:12, skipping insertion in model container [2021-11-03 04:11:12,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:55" (2/3) ... [2021-11-03 04:11:12,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7004e864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:11:12, skipping insertion in model container [2021-11-03 04:11:12,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:11:12" (3/3) ... [2021-11-03 04:11:12,269 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2021-11-03 04:11:12,275 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:11:12,275 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-03 04:11:12,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:11:12,331 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 04:11:12,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-03 04:11:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 296 states have (on average 1.4864864864864864) internal successors, (440), 310 states have internal predecessors, (440), 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 04:11:12,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:11:12,361 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:12,362 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:12,363 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 04:11:12,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:12,368 INFO L85 PathProgramCache]: Analyzing trace with hash -424146730, now seen corresponding path program 1 times [2021-11-03 04:11:12,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:12,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822154221] [2021-11-03 04:11:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:12,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:12,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:12,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:12,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:11:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:16,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:11:16,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:17,006 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 04:11:17,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:17,118 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 04:11:17,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:17,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822154221] [2021-11-03 04:11:17,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822154221] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:17,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:17,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:11:17,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168779114] [2021-11-03 04:11:17,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:11:17,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:17,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:11:17,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:11:17,143 INFO L87 Difference]: Start difference. First operand has 311 states, 296 states have (on average 1.4864864864864864) internal successors, (440), 310 states have internal predecessors, (440), 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 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 04:11:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:17,216 INFO L93 Difference]: Finished difference Result 618 states and 875 transitions. [2021-11-03 04:11:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:11:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-03 04:11:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:17,237 INFO L225 Difference]: With dead ends: 618 [2021-11-03 04:11:17,237 INFO L226 Difference]: Without dead ends: 304 [2021-11-03 04:11:17,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 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 04:11:17,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-03 04:11:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-03 04:11:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3827586206896552) internal successors, (401), 303 states have internal predecessors, (401), 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 04:11:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 401 transitions. [2021-11-03 04:11:17,340 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 401 transitions. Word has length 39 [2021-11-03 04:11:17,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:17,341 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 401 transitions. [2021-11-03 04:11:17,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 04:11:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 401 transitions. [2021-11-03 04:11:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:11:17,343 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:17,343 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:17,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:11:17,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:17,544 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 04:11:17,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:17,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1377522796, now seen corresponding path program 1 times [2021-11-03 04:11:17,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:17,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222475439] [2021-11-03 04:11:17,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:17,552 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:17,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:17,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:17,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:11:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:21,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:11:21,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:22,269 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 04:11:22,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:22,461 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 04:11:22,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:22,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222475439] [2021-11-03 04:11:22,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222475439] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:22,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:22,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:11:22,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435007839] [2021-11-03 04:11:22,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:11:22,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:22,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:11:22,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:11:22,465 INFO L87 Difference]: Start difference. First operand 304 states and 401 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 04:11:23,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:23,102 INFO L93 Difference]: Finished difference Result 587 states and 775 transitions. [2021-11-03 04:11:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:11:23,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-03 04:11:23,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:23,107 INFO L225 Difference]: With dead ends: 587 [2021-11-03 04:11:23,107 INFO L226 Difference]: Without dead ends: 304 [2021-11-03 04:11:23,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:11:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-03 04:11:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-03 04:11:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3689655172413793) internal successors, (397), 303 states have internal predecessors, (397), 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 04:11:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 397 transitions. [2021-11-03 04:11:23,131 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 397 transitions. Word has length 39 [2021-11-03 04:11:23,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:23,132 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 397 transitions. [2021-11-03 04:11:23,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 04:11:23,132 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 397 transitions. [2021-11-03 04:11:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 04:11:23,134 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:23,134 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] [2021-11-03 04:11:23,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:23,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:23,357 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 04:11:23,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:23,357 INFO L85 PathProgramCache]: Analyzing trace with hash 914596510, now seen corresponding path program 1 times [2021-11-03 04:11:23,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:23,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762687445] [2021-11-03 04:11:23,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:23,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:23,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:23,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:23,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:11:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:28,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:11:28,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:28,335 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 04:11:28,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:28,612 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 04:11:28,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:28,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762687445] [2021-11-03 04:11:28,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762687445] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:28,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:28,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:11:28,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451245883] [2021-11-03 04:11:28,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:11:28,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:11:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:11:28,615 INFO L87 Difference]: Start difference. First operand 304 states and 397 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 04:11:29,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:29,451 INFO L93 Difference]: Finished difference Result 562 states and 736 transitions. [2021-11-03 04:11:29,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:11:29,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2021-11-03 04:11:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:29,455 INFO L225 Difference]: With dead ends: 562 [2021-11-03 04:11:29,455 INFO L226 Difference]: Without dead ends: 304 [2021-11-03 04:11:29,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:11:29,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-03 04:11:29,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-03 04:11:29,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3517241379310345) internal successors, (392), 303 states have internal predecessors, (392), 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 04:11:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 392 transitions. [2021-11-03 04:11:29,492 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 392 transitions. Word has length 43 [2021-11-03 04:11:29,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:29,492 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 392 transitions. [2021-11-03 04:11:29,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 04:11:29,493 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 392 transitions. [2021-11-03 04:11:29,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 04:11:29,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:29,495 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 04:11:29,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:29,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:29,696 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 04:11:29,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:29,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1965512071, now seen corresponding path program 1 times [2021-11-03 04:11:29,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:29,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335355580] [2021-11-03 04:11:29,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:29,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:29,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:29,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:29,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981d5106-cd59-4cbb-ab4f-a31690ce4a78/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:11:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:34,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-03 04:11:34,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:34,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 04:11:34,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-11-03 04:11:34,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-03 04:11:35,772 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:35,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 115 treesize of output 51 [2021-11-03 04:11:35,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2021-11-03 04:11:35,987 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 04:11:35,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:59,659 WARN L207 SmtUtils]: Spent 21.77 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 04:11:59,663 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 04:11:59,664 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 143 treesize of output 786