./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_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_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/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_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/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_151d064c-09a1-4cdf-b1e1-247c9f022088/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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:45:27,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:45:27,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:45:27,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:45:27,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:45:27,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:45:27,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:45:27,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:45:27,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:45:27,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:45:27,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:45:27,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:45:27,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:45:27,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:45:27,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:45:27,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:45:27,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:45:27,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:45:27,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:45:27,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:45:27,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:45:27,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:45:27,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:45:27,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:45:27,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:45:27,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:45:27,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:45:27,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:45:27,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:45:27,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:45:27,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:45:27,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:45:27,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:45:27,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:45:27,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:45:27,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:45:27,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:45:27,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:45:27,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:45:27,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:45:27,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:45:27,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:45:27,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:45:27,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:45:27,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:45:27,187 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:45:27,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:45:27,187 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:45:27,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:45:27,188 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:45:27,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:45:27,188 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:45:27,188 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:45:27,188 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:45:27,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:45:27,189 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:45:27,189 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:45:27,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:45:27,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:45:27,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:45:27,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:45:27,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:45:27,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:45:27,191 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:45:27,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:45:27,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:45:27,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:45:27,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:45:27,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:45:27,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:45:27,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:45:27,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:45:27,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:45:27,193 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:45:27,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:45:27,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:45:27,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:45:27,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:45:27,194 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_151d064c-09a1-4cdf-b1e1-247c9f022088/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-03 04:45:27,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:45:27,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:45:27,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:45:27,470 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:45:27,471 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:45:27,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-03 04:45:27,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/ad5def4de/b7633789e6024fb48c08425799cdb63f/FLAG9dd63ff33 [2021-11-03 04:45:28,435 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:45:28,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-03 04:45:28,501 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/ad5def4de/b7633789e6024fb48c08425799cdb63f/FLAG9dd63ff33 [2021-11-03 04:45:28,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/ad5def4de/b7633789e6024fb48c08425799cdb63f [2021-11-03 04:45:28,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:45:28,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:45:28,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:45:28,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:45:28,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:45:28,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:45:28" (1/1) ... [2021-11-03 04:45:28,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4202fdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:28, skipping insertion in model container [2021-11-03 04:45:28,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:45:28" (1/1) ... [2021-11-03 04:45:28,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:45:29,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:45:29,464 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-03 04:45:29,477 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-03 04:45:29,517 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:45:29,538 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:45:30,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:30,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:31,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:45:31,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:45:31,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:45:31,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:45:31,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:45:31,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:45:31,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:45:31,049 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:45:31,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:45:31,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:45:31,260 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:45:31,278 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:45:31,283 INFO L168 Benchmark]: Toolchain (without parser) took 2306.15 ms. Allocated memory is still 136.3 MB. Free memory was 96.5 MB in the beginning and 76.9 MB in the end (delta: 19.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:45:31,285 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.5 MB in the end (delta: 50.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:45:31,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2303.67 ms. Allocated memory is still 136.3 MB. Free memory was 96.5 MB in the beginning and 76.9 MB in the end (delta: 19.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:45:31,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.5 MB in the end (delta: 50.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2303.67 ms. Allocated memory is still 136.3 MB. Free memory was 96.5 MB in the beginning and 76.9 MB in the end (delta: 19.6 MB). Peak memory consumption was 23.1 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_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/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_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/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_151d064c-09a1-4cdf-b1e1-247c9f022088/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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:45:33,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:45:33,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:45:33,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:45:33,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:45:33,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:45:33,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:45:33,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:45:33,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:45:33,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:45:33,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:45:33,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:45:33,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:45:33,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:45:33,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:45:33,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:45:33,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:45:33,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:45:33,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:45:33,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:45:33,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:45:33,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:45:33,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:45:33,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:45:33,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:45:33,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:45:33,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:45:33,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:45:33,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:45:33,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:45:33,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:45:33,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:45:33,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:45:33,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:45:33,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:45:33,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:45:33,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:45:33,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:45:33,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:45:33,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:45:33,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:45:33,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:45:33,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:45:33,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:45:33,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:45:33,920 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:45:33,920 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:45:33,921 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:45:33,921 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:45:33,921 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:45:33,921 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:45:33,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:45:33,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:45:33,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:45:33,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:45:33,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:45:33,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:45:33,926 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:45:33,926 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:45:33,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:45:33,927 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:45:33,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:45:33,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:45:33,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:45:33,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:45:33,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:45:33,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:45:33,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:45:33,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:45:33,929 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:45:33,930 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:45:33,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:45:33,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:45:33,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:45:33,931 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_151d064c-09a1-4cdf-b1e1-247c9f022088/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-03 04:45:34,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:45:34,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:45:34,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:45:34,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:45:34,398 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:45:34,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-03 04:45:34,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/f4122d063/5b77bd8507f548659ed186c7d8f58a76/FLAGf09c229da [2021-11-03 04:45:35,531 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:45:35,532 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-03 04:45:35,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/f4122d063/5b77bd8507f548659ed186c7d8f58a76/FLAGf09c229da [2021-11-03 04:45:36,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/data/f4122d063/5b77bd8507f548659ed186c7d8f58a76 [2021-11-03 04:45:36,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:45:36,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:45:36,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:45:36,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:45:36,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:45:36,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:45:36" (1/1) ... [2021-11-03 04:45:36,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26058f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:36, skipping insertion in model container [2021-11-03 04:45:36,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:45:36" (1/1) ... [2021-11-03 04:45:36,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:45:36,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:45:36,585 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-03 04:45:36,594 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-03 04:45:36,629 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:45:36,639 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:45:37,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:37,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:37,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:37,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:37,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:38,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:38,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:38,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:38,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:38,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:45:38,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:45:38,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:45:38,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:45:38,550 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:45:38,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:45:38,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:45:38,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:45:38,553 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:45:38,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:45:38,772 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:45:38,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:38,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:45:39,171 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:45:39,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:45:39,247 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-03 04:45:39,248 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-03 04:45:39,275 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:45:39,276 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:45:39,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,320 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,365 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:45:39,366 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:45:39,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:45:39,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:45:39,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:45:39,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:45:39,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:45:39,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:45:39,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:45:39,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:45:39,392 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:45:39,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:45:39,601 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:45:39,627 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-03 04:45:39,628 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_151d064c-09a1-4cdf-b1e1-247c9f022088/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-03 04:45:39,629 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:45:39,630 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:45:39,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:45:39,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:45:39,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:45:39,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:45:39,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:45:39,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:45:39,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:45:39,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:45:39,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:45:39,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:45:39,774 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:45:39,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:45:39,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:45:40,411 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:45:40,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40 WrapperNode [2021-11-03 04:45:40,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:45:40,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:45:40,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:45:40,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:45:40,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:45:40,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:45:40,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:45:40,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:45:40,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:45:40,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:45:40,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:45:40,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:45:40,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (1/1) ... [2021-11-03 04:45:40,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:45:40,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:45:40,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:45:40,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:45:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:45:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:45:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:45:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-03 04:45:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:45:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:45:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 04:45:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 04:45:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 04:45:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 04:45:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:45:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:45:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:45:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:45:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 04:45:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:45:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:45:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:45:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:45:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:45:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:45:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-03 04:45:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-03 04:45:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-03 04:45:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:45:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 04:45:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 04:45:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 04:45:58,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !true; [2021-11-03 04:45:58,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:45:58,067 INFO L299 CfgBuilder]: Removed 84 assume(true) statements. [2021-11-03 04:45:58,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:45:58 BoogieIcfgContainer [2021-11-03 04:45:58,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:45:58,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:45:58,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:45:58,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:45:58,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:45:36" (1/3) ... [2021-11-03 04:45:58,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d0f0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:45:58, skipping insertion in model container [2021-11-03 04:45:58,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:45:40" (2/3) ... [2021-11-03 04:45:58,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d0f0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:45:58, skipping insertion in model container [2021-11-03 04:45:58,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:45:58" (3/3) ... [2021-11-03 04:45:58,079 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_array_harness.i [2021-11-03 04:45:58,085 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:45:58,086 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:45:58,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:45:58,144 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 04:45:58,144 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:45:58,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 90 states have internal predecessors, (119), 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 04:45:58,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:45:58,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:45:58,168 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] [2021-11-03 04:45:58,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:45:58,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:45:58,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2112400035, now seen corresponding path program 1 times [2021-11-03 04:45:58,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:45:58,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923700513] [2021-11-03 04:45:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:45:58,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:45:58,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:45:58,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:45:58,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:46:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:02,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:46:02,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:02,776 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 04:46:02,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:02,895 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 04:46:02,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:02,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923700513] [2021-11-03 04:46:02,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923700513] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:02,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:02,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:46:02,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671021539] [2021-11-03 04:46:02,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:46:02,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:02,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:46:02,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:46:02,924 INFO L87 Difference]: Start difference. First operand has 91 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 90 states have internal predecessors, (119), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 04:46:02,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:02,968 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2021-11-03 04:46:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:46:02,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-03 04:46:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:02,982 INFO L225 Difference]: With dead ends: 177 [2021-11-03 04:46:02,983 INFO L226 Difference]: Without dead ends: 85 [2021-11-03 04:46:02,989 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 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 04:46:03,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-03 04:46:03,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-03 04:46:03,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 84 states have internal predecessors, (96), 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 04:46:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2021-11-03 04:46:03,052 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 25 [2021-11-03 04:46:03,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:03,053 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-11-03 04:46:03,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 04:46:03,054 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2021-11-03 04:46:03,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:46:03,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:03,055 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] [2021-11-03 04:46:03,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:46:03,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:03,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:46:03,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1235816865, now seen corresponding path program 1 times [2021-11-03 04:46:03,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:03,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181620117] [2021-11-03 04:46:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:03,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:03,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:03,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:46:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:07,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:46:07,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:46:07,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:07,969 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 04:46:07,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:07,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181620117] [2021-11-03 04:46:07,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181620117] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:07,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:07,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:46:07,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209921955] [2021-11-03 04:46:07,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:46:07,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:07,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:46:07,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:46:07,974 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 04:46:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:08,117 INFO L93 Difference]: Finished difference Result 180 states and 203 transitions. [2021-11-03 04:46:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:46:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-11-03 04:46:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:08,120 INFO L225 Difference]: With dead ends: 180 [2021-11-03 04:46:08,120 INFO L226 Difference]: Without dead ends: 150 [2021-11-03 04:46:08,121 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:46:08,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-03 04:46:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 88. [2021-11-03 04:46:08,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 87 states have internal predecessors, (99), 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 04:46:08,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-11-03 04:46:08,133 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 25 [2021-11-03 04:46:08,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:08,133 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-11-03 04:46:08,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 04:46:08,134 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-11-03 04:46:08,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:46:08,135 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:08,135 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] [2021-11-03 04:46:08,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:08,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:08,336 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:46:08,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:08,337 INFO L85 PathProgramCache]: Analyzing trace with hash 293799461, now seen corresponding path program 1 times [2021-11-03 04:46:08,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:08,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961188587] [2021-11-03 04:46:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:08,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:08,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:08,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:08,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:46:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:12,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:46:12,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:12,850 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 04:46:12,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:12,947 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 04:46:12,948 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:12,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961188587] [2021-11-03 04:46:12,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961188587] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:12,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:12,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:46:12,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569704264] [2021-11-03 04:46:12,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:46:12,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:12,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:46:12,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:46:12,950 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:46:13,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:13,076 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2021-11-03 04:46:13,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:46:13,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-11-03 04:46:13,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:13,080 INFO L225 Difference]: With dead ends: 118 [2021-11-03 04:46:13,080 INFO L226 Difference]: Without dead ends: 88 [2021-11-03 04:46:13,081 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 04:46:13,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-03 04:46:13,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2021-11-03 04:46:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 84 states have internal predecessors, (94), 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 04:46:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2021-11-03 04:46:13,089 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 27 [2021-11-03 04:46:13,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:13,090 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2021-11-03 04:46:13,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:46:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2021-11-03 04:46:13,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:46:13,092 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:13,093 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 04:46:13,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:46:13,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:13,302 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:46:13,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:13,303 INFO L85 PathProgramCache]: Analyzing trace with hash 659600795, now seen corresponding path program 1 times [2021-11-03 04:46:13,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:13,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553359194] [2021-11-03 04:46:13,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:13,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:13,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:13,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:13,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:46:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:17,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:46:17,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:18,149 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 04:46:18,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:18,347 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 04:46:18,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:18,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553359194] [2021-11-03 04:46:18,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553359194] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:18,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:18,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:46:18,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704234903] [2021-11-03 04:46:18,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:46:18,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:18,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:46:18,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:46:18,351 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 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 04:46:18,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:18,491 INFO L93 Difference]: Finished difference Result 228 states and 256 transitions. [2021-11-03 04:46:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:46:18,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 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 04:46:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:18,501 INFO L225 Difference]: With dead ends: 228 [2021-11-03 04:46:18,501 INFO L226 Difference]: Without dead ends: 182 [2021-11-03 04:46:18,502 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:46:18,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-03 04:46:18,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 88. [2021-11-03 04:46:18,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 87 states have internal predecessors, (97), 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 04:46:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2021-11-03 04:46:18,525 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 46 [2021-11-03 04:46:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:18,526 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2021-11-03 04:46:18,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 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 04:46:18,528 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2021-11-03 04:46:18,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 04:46:18,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:18,531 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] [2021-11-03 04:46:18,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:18,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:18,732 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:46:18,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:18,733 INFO L85 PathProgramCache]: Analyzing trace with hash 20122135, now seen corresponding path program 1 times [2021-11-03 04:46:18,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:18,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061299915] [2021-11-03 04:46:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:18,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:18,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:18,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:18,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:46:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:23,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:46:23,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:23,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:46:23,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:23,748 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 04:46:23,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:23,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061299915] [2021-11-03 04:46:23,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061299915] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:23,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:23,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:46:23,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394498056] [2021-11-03 04:46:23,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:46:23,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:46:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:46:23,750 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:46:24,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:24,081 INFO L93 Difference]: Finished difference Result 139 states and 154 transitions. [2021-11-03 04:46:24,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:46:24,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-03 04:46:24,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:24,093 INFO L225 Difference]: With dead ends: 139 [2021-11-03 04:46:24,093 INFO L226 Difference]: Without dead ends: 83 [2021-11-03 04:46:24,094 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:46:24,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-03 04:46:24,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-03 04:46:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 82 states have internal predecessors, (90), 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 04:46:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2021-11-03 04:46:24,100 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 48 [2021-11-03 04:46:24,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:24,100 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2021-11-03 04:46:24,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:46:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2021-11-03 04:46:24,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 04:46:24,102 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:24,102 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:46:24,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:24,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:24,327 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:46:24,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:24,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1019144308, now seen corresponding path program 1 times [2021-11-03 04:46:24,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:24,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241841852] [2021-11-03 04:46:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:24,333 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:24,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:24,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:24,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:46:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:28,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:46:28,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:29,054 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 04:46:29,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:29,225 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 04:46:29,225 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:29,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241841852] [2021-11-03 04:46:29,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241841852] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:29,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:29,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-03 04:46:29,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108872117] [2021-11-03 04:46:29,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:46:29,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:29,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:46:29,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:46:29,228 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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 04:46:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:29,876 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2021-11-03 04:46:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:46:29,877 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-03 04:46:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:29,878 INFO L225 Difference]: With dead ends: 121 [2021-11-03 04:46:29,878 INFO L226 Difference]: Without dead ends: 83 [2021-11-03 04:46:29,879 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:46:29,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-03 04:46:29,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-03 04:46:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.155844155844156) internal successors, (89), 82 states have internal predecessors, (89), 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 04:46:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2021-11-03 04:46:29,887 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 49 [2021-11-03 04:46:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:29,888 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2021-11-03 04:46:29,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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 04:46:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2021-11-03 04:46:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 04:46:29,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:29,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:46:29,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 04:46:30,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:30,103 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:46:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1500815626, now seen corresponding path program 1 times [2021-11-03 04:46:30,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:30,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541687557] [2021-11-03 04:46:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:30,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:30,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:30,116 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:30,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151d064c-09a1-4cdf-b1e1-247c9f022088/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:52:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:52:33,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-03 04:52:33,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:52:34,310 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-03 04:52:34,311 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 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-03 04:52:35,022 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-03 04:52:35,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 66 [2021-11-03 04:52:36,493 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-03 04:52:36,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:36,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 81 [2021-11-03 04:52:37,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:52:37,586 INFO L354 Elim1Store]: treesize reduction 224, result has 24.6 percent of original size [2021-11-03 04:52:37,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 136 treesize of output 156 [2021-11-03 04:52:38,957 INFO L354 Elim1Store]: treesize reduction 152, result has 1.9 percent of original size [2021-11-03 04:52:38,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 234 treesize of output 114 [2021-11-03 04:52:39,315 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 04:52:39,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:52:46,363 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 559 treesize of output 541