./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_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_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/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_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/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_97a437f6-abb5-4ac2-8142-a436000322d4/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 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:59:27,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:59:27,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:59:27,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:59:27,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:59:27,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:59:27,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:59:27,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:59:27,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:59:27,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:59:27,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:59:27,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:59:27,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:59:27,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:59:27,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:59:27,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:59:27,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:59:27,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:59:27,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:59:27,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:59:27,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:59:27,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:59:27,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:59:27,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:59:27,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:59:27,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:59:27,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:59:27,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:59:27,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:59:27,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:59:27,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:59:27,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:59:27,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:59:27,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:59:27,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:59:27,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:59:27,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:59:27,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:59:27,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:59:27,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:59:27,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:59:27,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:59:27,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:59:27,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:59:27,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:59:27,543 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:59:27,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:59:27,544 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:59:27,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:59:27,544 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:59:27,550 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:59:27,550 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:59:27,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:59:27,552 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:59:27,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:59:27,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:59:27,552 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:59:27,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:59:27,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:59:27,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:59:27,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:59:27,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:59:27,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:59:27,555 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:59:27,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:59:27,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:59:27,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:59:27,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:59:27,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:59:27,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:59:27,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:59:27,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:59:27,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:59:27,558 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:59:27,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:59:27,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:59:27,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:59:27,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:59:27,579 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_97a437f6-abb5-4ac2-8142-a436000322d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 [2021-11-03 03:59:27,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:59:27,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:59:27,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:59:27,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:59:27,889 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:59:27,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-03 03:59:27,959 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/55afed6ec/0fa2e2624c194c6dbb912911c207bc09/FLAGc63bebe7c [2021-11-03 03:59:28,873 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:59:28,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-03 03:59:28,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/55afed6ec/0fa2e2624c194c6dbb912911c207bc09/FLAGc63bebe7c [2021-11-03 03:59:29,353 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/55afed6ec/0fa2e2624c194c6dbb912911c207bc09 [2021-11-03 03:59:29,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:59:29,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:59:29,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:59:29,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:59:29,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:59:29,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:29" (1/1) ... [2021-11-03 03:59:29,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba512ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:29, skipping insertion in model container [2021-11-03 03:59:29,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:29" (1/1) ... [2021-11-03 03:59:29,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:59:29,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:59:29,783 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-03 03:59:29,791 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-03 03:59:29,819 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:59:29,826 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:59:30,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,985 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,985 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:30,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:31,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:59:31,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:59:31,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:59:31,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:59:31,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:59:31,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:59:31,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:59:31,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:59:31,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:59:31,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:59:31,728 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:59:31,744 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:59:31,754 INFO L168 Benchmark]: Toolchain (without parser) took 2395.94 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 61.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:59:31,755 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:59:31,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2393.99 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 56.1 MB in the beginning and 61.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:59:31,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2393.99 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 56.1 MB in the beginning and 61.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/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_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/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_97a437f6-abb5-4ac2-8142-a436000322d4/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 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:59:34,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:59:34,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:59:34,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:59:34,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:59:34,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:59:34,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:59:34,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:59:34,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:59:34,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:59:34,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:59:34,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:59:34,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:59:34,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:59:34,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:59:34,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:59:34,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:59:34,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:59:34,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:59:34,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:59:34,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:59:34,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:59:34,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:59:34,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:59:34,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:59:34,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:59:34,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:59:34,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:59:34,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:59:34,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:59:34,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:59:34,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:59:34,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:59:34,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:59:34,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:59:34,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:59:34,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:59:34,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:59:34,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:59:34,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:59:34,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:59:34,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:59:34,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:59:34,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:59:34,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:59:34,248 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:59:34,248 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:59:34,248 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:59:34,249 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:59:34,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:59:34,249 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:59:34,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:59:34,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:59:34,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:59:34,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:59:34,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:59:34,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:59:34,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:59:34,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:59:34,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:59:34,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:59:34,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:59:34,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:59:34,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:59:34,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:59:34,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:59:34,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:59:34,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:59:34,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:59:34,255 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:59:34,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:59:34,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:59:34,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:59:34,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:59:34,256 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_97a437f6-abb5-4ac2-8142-a436000322d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 [2021-11-03 03:59:34,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:59:34,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:59:34,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:59:34,686 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:59:34,687 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:59:34,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-03 03:59:34,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/55e5cebe4/99e314066358400fad02751234201905/FLAG9470db167 [2021-11-03 03:59:35,623 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:59:35,623 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-03 03:59:35,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/55e5cebe4/99e314066358400fad02751234201905/FLAG9470db167 [2021-11-03 03:59:36,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/data/55e5cebe4/99e314066358400fad02751234201905 [2021-11-03 03:59:36,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:59:36,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:59:36,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:59:36,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:59:36,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:59:36,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:36" (1/1) ... [2021-11-03 03:59:36,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fca08f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:36, skipping insertion in model container [2021-11-03 03:59:36,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:36" (1/1) ... [2021-11-03 03:59:36,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:59:36,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:59:36,632 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-03 03:59:36,641 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-03 03:59:36,676 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:59:36,690 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:59:37,778 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,799 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,801 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:37,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:59:38,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:59:38,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:59:38,277 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:59:38,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:59:38,279 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:59:38,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:59:38,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:59:38,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:59:38,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:59:38,498 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:59:38,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:38,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:59:39,013 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:59:39,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:59:39,181 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-03 03:59:39,181 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-03 03:59:39,187 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:59:39,189 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:59:39,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,273 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,276 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:59:39,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:59:39,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:59:39,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:59:39,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:59:39,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:59:39,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:59:39,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:59:39,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:59:39,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:59:39,376 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:59:39,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:59:39,639 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:59:39,664 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-03 03:59:39,665 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_97a437f6-abb5-4ac2-8142-a436000322d4/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-03 03:59:39,666 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:59:39,667 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:59:39,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:39,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:59:39,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:59:39,761 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:59:39,761 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:59:39,762 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:59:39,763 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:59:39,763 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:59:39,763 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:59:39,764 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:59:39,765 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:59:39,790 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:59:40,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,055 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:59:40,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:59:40,439 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:59:40,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40 WrapperNode [2021-11-03 03:59:40,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:59:40,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:59:40,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:59:40,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:59:40,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:59:40,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:59:40,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:59:40,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:59:40,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:59:40,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:59:40,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:59:40,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:59:40,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (1/1) ... [2021-11-03 03:59:40,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:59:40,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:40,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:59:40,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:59:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 03:59:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:59:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:59:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:59:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:59:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 03:59:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:59:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:59:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:59:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:59:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:59:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:59:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:59:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:59:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:59:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:59:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:59:55,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:59:55,293 INFO L299 CfgBuilder]: Removed 190 assume(true) statements. [2021-11-03 03:59:55,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:55 BoogieIcfgContainer [2021-11-03 03:59:55,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:59:55,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:59:55,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:59:55,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:59:55,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:59:36" (1/3) ... [2021-11-03 03:59:55,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c9e8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:55, skipping insertion in model container [2021-11-03 03:59:55,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:40" (2/3) ... [2021-11-03 03:59:55,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c9e8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:55, skipping insertion in model container [2021-11-03 03:59:55,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:55" (3/3) ... [2021-11-03 03:59:55,303 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness.i [2021-11-03 03:59:55,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:59:55,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 03:59:55,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:59:55,381 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:59:55,382 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 03:59:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 163 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:59:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 03:59:55,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:55,413 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:59:55,413 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 03:59:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash 67832654, now seen corresponding path program 1 times [2021-11-03 03:59:55,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:59:55,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784424726] [2021-11-03 03:59:55,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:55,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:59:55,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:59:55,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:59:55,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:59:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:59,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:59:59,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:59,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:59,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:59:59,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784424726] [2021-11-03 03:59:59,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784424726] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:59:59,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:59:59,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:59:59,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451599823] [2021-11-03 03:59:59,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:59:59,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:59:59,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:59:59,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:59:59,328 INFO L87 Difference]: Start difference. First operand has 164 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 163 states have internal predecessors, (216), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:59:59,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:59,359 INFO L93 Difference]: Finished difference Result 323 states and 425 transitions. [2021-11-03 03:59:59,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:59:59,360 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2021-11-03 03:59:59,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:59,370 INFO L225 Difference]: With dead ends: 323 [2021-11-03 03:59:59,370 INFO L226 Difference]: Without dead ends: 158 [2021-11-03 03:59:59,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:59:59,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-03 03:59:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-11-03 03:59:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 154 states have (on average 1.2337662337662338) internal successors, (190), 157 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:59:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 190 transitions. [2021-11-03 03:59:59,431 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 190 transitions. Word has length 15 [2021-11-03 03:59:59,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:59,432 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 190 transitions. [2021-11-03 03:59:59,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:59:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 190 transitions. [2021-11-03 03:59:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 03:59:59,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:59,435 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:59:59,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 03:59:59,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:59:59,659 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 03:59:59,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash -325194356, now seen corresponding path program 1 times [2021-11-03 03:59:59,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:59:59,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609754355] [2021-11-03 03:59:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:59,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:59:59,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:59:59,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:59:59,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:00:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:03,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:00:03,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:04,022 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 04:00:04,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:04,120 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 04:00:04,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:04,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609754355] [2021-11-03 04:00:04,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609754355] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:04,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:04,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:00:04,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11870215] [2021-11-03 04:00:04,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:00:04,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:04,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:00:04,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:00:04,123 INFO L87 Difference]: Start difference. First operand 158 states and 190 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 04:00:04,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:04,183 INFO L93 Difference]: Finished difference Result 270 states and 323 transitions. [2021-11-03 04:00:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:00:04,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-03 04:00:04,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:04,187 INFO L225 Difference]: With dead ends: 270 [2021-11-03 04:00:04,187 INFO L226 Difference]: Without dead ends: 238 [2021-11-03 04:00:04,188 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:00:04,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-03 04:00:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 222. [2021-11-03 04:00:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 218 states have (on average 1.224770642201835) internal successors, (267), 221 states have internal predecessors, (267), 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 04:00:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 267 transitions. [2021-11-03 04:00:04,210 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 267 transitions. Word has length 15 [2021-11-03 04:00:04,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:04,210 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 267 transitions. [2021-11-03 04:00:04,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 04:00:04,211 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 267 transitions. [2021-11-03 04:00:04,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:00:04,212 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:04,212 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:04,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:04,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:04,435 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:04,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:04,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1994950714, now seen corresponding path program 1 times [2021-11-03 04:00:04,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:04,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604551841] [2021-11-03 04:00:04,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:04,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:04,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:04,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:04,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:00:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:07,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:00:08,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:08,090 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 04:00:08,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:08,167 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 04:00:08,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:08,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604551841] [2021-11-03 04:00:08,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604551841] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:08,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:08,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:00:08,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506651666] [2021-11-03 04:00:08,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:00:08,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:08,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:00:08,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:00:08,169 INFO L87 Difference]: Start difference. First operand 222 states and 267 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 04:00:08,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:08,210 INFO L93 Difference]: Finished difference Result 262 states and 313 transitions. [2021-11-03 04:00:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:00:08,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-03 04:00:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:08,218 INFO L225 Difference]: With dead ends: 262 [2021-11-03 04:00:08,219 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 04:00:08,219 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:00:08,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 04:00:08,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2021-11-03 04:00:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.2231759656652361) internal successors, (285), 236 states have internal predecessors, (285), 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 04:00:08,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 285 transitions. [2021-11-03 04:00:08,252 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 285 transitions. Word has length 16 [2021-11-03 04:00:08,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:08,252 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 285 transitions. [2021-11-03 04:00:08,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 04:00:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 285 transitions. [2021-11-03 04:00:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 04:00:08,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:08,262 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:08,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:08,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:08,479 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:08,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1734286995, now seen corresponding path program 1 times [2021-11-03 04:00:08,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:08,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649135065] [2021-11-03 04:00:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:08,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:08,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:08,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:08,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:00:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:12,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:00:12,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:12,691 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 04:00:12,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:12,905 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 04:00:12,905 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:12,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649135065] [2021-11-03 04:00:12,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649135065] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:12,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:12,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:00:12,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917986961] [2021-11-03 04:00:12,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:00:12,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:12,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:00:12,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:00:12,908 INFO L87 Difference]: Start difference. First operand 237 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:13,492 INFO L93 Difference]: Finished difference Result 627 states and 755 transitions. [2021-11-03 04:00:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:00:13,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 04:00:13,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:13,497 INFO L225 Difference]: With dead ends: 627 [2021-11-03 04:00:13,497 INFO L226 Difference]: Without dead ends: 434 [2021-11-03 04:00:13,498 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:00:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-03 04:00:13,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 255. [2021-11-03 04:00:13,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 251 states have (on average 1.207171314741036) internal successors, (303), 254 states have internal predecessors, (303), 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 04:00:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2021-11-03 04:00:13,518 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 50 [2021-11-03 04:00:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:13,518 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2021-11-03 04:00:13,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:13,519 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2021-11-03 04:00:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:00:13,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:13,521 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:13,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:13,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:13,722 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:13,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash -569476781, now seen corresponding path program 1 times [2021-11-03 04:00:13,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:13,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968530671] [2021-11-03 04:00:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:13,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:13,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:13,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:13,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:00:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:17,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:00:17,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:17,750 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 04:00:17,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:17,971 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 04:00:17,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:17,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968530671] [2021-11-03 04:00:17,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968530671] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:17,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:17,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:00:17,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895109229] [2021-11-03 04:00:17,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:00:17,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:00:17,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:00:17,974 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:18,270 INFO L93 Difference]: Finished difference Result 468 states and 555 transitions. [2021-11-03 04:00:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:00:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 04:00:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:18,280 INFO L225 Difference]: With dead ends: 468 [2021-11-03 04:00:18,281 INFO L226 Difference]: Without dead ends: 255 [2021-11-03 04:00:18,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:00:18,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-03 04:00:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2021-11-03 04:00:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.1716738197424892) internal successors, (273), 236 states have internal predecessors, (273), 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 04:00:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 273 transitions. [2021-11-03 04:00:18,293 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 273 transitions. Word has length 54 [2021-11-03 04:00:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:18,293 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 273 transitions. [2021-11-03 04:00:18,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 273 transitions. [2021-11-03 04:00:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:00:18,296 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:18,296 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:18,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:18,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:18,519 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:18,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:18,519 INFO L85 PathProgramCache]: Analyzing trace with hash 207541157, now seen corresponding path program 1 times [2021-11-03 04:00:18,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:18,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993529268] [2021-11-03 04:00:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:18,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:18,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:18,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:18,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:00:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:22,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:00:22,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:23,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 04:00:23,455 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 04:00:23,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:23,626 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 30 treesize of output 26 [2021-11-03 04:00:24,021 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 04:00:24,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:24,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993529268] [2021-11-03 04:00:24,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993529268] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:24,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:24,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:00:24,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174733070] [2021-11-03 04:00:24,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:00:24,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:24,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:00:24,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:00:24,023 INFO L87 Difference]: Start difference. First operand 237 states and 273 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:32,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:32,220 INFO L93 Difference]: Finished difference Result 430 states and 493 transitions. [2021-11-03 04:00:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:00:32,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-03 04:00:32,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:32,222 INFO L225 Difference]: With dead ends: 430 [2021-11-03 04:00:32,223 INFO L226 Difference]: Without dead ends: 293 [2021-11-03 04:00:32,223 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:00:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-03 04:00:32,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 239. [2021-11-03 04:00:32,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 235 states have (on average 1.1702127659574468) internal successors, (275), 238 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:32,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 275 transitions. [2021-11-03 04:00:32,236 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 275 transitions. Word has length 60 [2021-11-03 04:00:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:32,236 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 275 transitions. [2021-11-03 04:00:32,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 275 transitions. [2021-11-03 04:00:32,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:00:32,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:32,239 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:32,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:32,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:32,459 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2036442141, now seen corresponding path program 1 times [2021-11-03 04:00:32,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:32,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023295727] [2021-11-03 04:00:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:32,463 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:32,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:32,464 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:32,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:00:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:36,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:00:36,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:37,015 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 04:00:37,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:37,354 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 04:00:37,354 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:37,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023295727] [2021-11-03 04:00:37,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023295727] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:37,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:37,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:00:37,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174585003] [2021-11-03 04:00:37,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:00:37,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:00:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:00:37,356 INFO L87 Difference]: Start difference. First operand 239 states and 275 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:37,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:37,535 INFO L93 Difference]: Finished difference Result 379 states and 438 transitions. [2021-11-03 04:00:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:00:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-03 04:00:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:37,540 INFO L225 Difference]: With dead ends: 379 [2021-11-03 04:00:37,540 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 04:00:37,541 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 04:00:37,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 04:00:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-03 04:00:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.1587982832618027) internal successors, (270), 236 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 270 transitions. [2021-11-03 04:00:37,556 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 270 transitions. Word has length 60 [2021-11-03 04:00:37,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:37,557 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 270 transitions. [2021-11-03 04:00:37,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 270 transitions. [2021-11-03 04:00:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 04:00:37,561 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:37,561 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:37,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:37,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:37,775 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:37,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:37,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1309166377, now seen corresponding path program 1 times [2021-11-03 04:00:37,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:37,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129336200] [2021-11-03 04:00:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:37,780 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:37,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:37,781 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:37,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:00:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:42,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:00:42,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:42,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 04:00:42,853 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 04:00:42,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:43,032 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 30 treesize of output 26 [2021-11-03 04:00:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:43,428 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:43,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129336200] [2021-11-03 04:00:43,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129336200] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:43,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:43,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:00:43,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467276487] [2021-11-03 04:00:43,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:00:43,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:43,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:00:43,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:00:43,431 INFO L87 Difference]: Start difference. First operand 237 states and 270 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:51,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:51,500 INFO L93 Difference]: Finished difference Result 383 states and 433 transitions. [2021-11-03 04:00:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 04:00:51,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-03 04:00:51,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:51,505 INFO L225 Difference]: With dead ends: 383 [2021-11-03 04:00:51,505 INFO L226 Difference]: Without dead ends: 291 [2021-11-03 04:00:51,505 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:00:51,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-03 04:00:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 241. [2021-11-03 04:00:51,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 237 states have (on average 1.1561181434599157) internal successors, (274), 240 states have internal predecessors, (274), 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 04:00:51,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 274 transitions. [2021-11-03 04:00:51,521 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 274 transitions. Word has length 61 [2021-11-03 04:00:51,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:51,521 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 274 transitions. [2021-11-03 04:00:51,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:51,522 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 274 transitions. [2021-11-03 04:00:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 04:00:51,523 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:51,523 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:51,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 04:00:51,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:51,747 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:51,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:51,747 INFO L85 PathProgramCache]: Analyzing trace with hash -934816921, now seen corresponding path program 1 times [2021-11-03 04:00:51,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:51,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61343517] [2021-11-03 04:00:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:51,750 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:51,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:51,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:00:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:55,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:00:55,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:56,278 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 04:00:56,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:56,594 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 04:00:56,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:00:56,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61343517] [2021-11-03 04:00:56,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61343517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:00:56,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:00:56,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:00:56,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290096268] [2021-11-03 04:00:56,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:00:56,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:00:56,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:00:56,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:00:56,596 INFO L87 Difference]: Start difference. First operand 241 states and 274 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:56,773 INFO L93 Difference]: Finished difference Result 349 states and 398 transitions. [2021-11-03 04:00:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:00:56,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-03 04:00:56,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:56,777 INFO L225 Difference]: With dead ends: 349 [2021-11-03 04:00:56,777 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 04:00:56,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 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 04:00:56,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 04:00:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-03 04:00:56,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.1330472103004292) internal successors, (264), 236 states have internal predecessors, (264), 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 04:00:56,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 264 transitions. [2021-11-03 04:00:56,793 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 264 transitions. Word has length 61 [2021-11-03 04:00:56,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:56,793 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 264 transitions. [2021-11-03 04:00:56,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:56,794 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 264 transitions. [2021-11-03 04:00:56,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:00:56,795 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:56,795 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:00:56,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:57,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:00:57,019 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:00:57,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:57,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1017128822, now seen corresponding path program 1 times [2021-11-03 04:00:57,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:00:57,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811816861] [2021-11-03 04:00:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:57,023 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:00:57,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:00:57,024 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:00:57,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:01:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:01:01,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1717 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:01:01,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:01:01,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 04:01:01,802 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 16 treesize of output 8 [2021-11-03 04:01:01,930 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 04:01:01,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:01:02,144 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 30 treesize of output 26 [2021-11-03 04:01:02,480 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 04:01:02,480 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:01:02,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811816861] [2021-11-03 04:01:02,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811816861] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:01:02,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:01:02,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:01:02,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339362486] [2021-11-03 04:01:02,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:01:02,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:01:02,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:01:02,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:01:02,482 INFO L87 Difference]: Start difference. First operand 237 states and 264 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 04:01:11,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:01:11,007 INFO L93 Difference]: Finished difference Result 434 states and 480 transitions. [2021-11-03 04:01:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:01:11,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-11-03 04:01:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:01:11,020 INFO L225 Difference]: With dead ends: 434 [2021-11-03 04:01:11,020 INFO L226 Difference]: Without dead ends: 296 [2021-11-03 04:01:11,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:01:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-03 04:01:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 237. [2021-11-03 04:01:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.128755364806867) internal successors, (263), 236 states have internal predecessors, (263), 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 04:01:11,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 263 transitions. [2021-11-03 04:01:11,036 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 263 transitions. Word has length 62 [2021-11-03 04:01:11,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:01:11,037 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 263 transitions. [2021-11-03 04:01:11,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 04:01:11,037 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 263 transitions. [2021-11-03 04:01:11,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:01:11,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:01:11,039 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:01:11,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-03 04:01:11,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:01:11,255 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 04:01:11,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:01:11,255 INFO L85 PathProgramCache]: Analyzing trace with hash 778166894, now seen corresponding path program 1 times [2021-11-03 04:01:11,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:01:11,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452678244] [2021-11-03 04:01:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:01:11,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:01:11,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:01:11,259 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:01:11,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97a437f6-abb5-4ac2-8142-a436000322d4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:01:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:01:55,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 04:01:55,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:01:58,121 INFO L354 Elim1Store]: treesize reduction 1644, result has 4.7 percent of original size [2021-11-03 04:01:58,122 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 8 case distinctions, treesize of input 153 treesize of output 112 [2021-11-03 04:01:58,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 108 [2021-11-03 04:01:58,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 129 [2021-11-03 04:01:59,304 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 172 treesize of output 132 [2021-11-03 04:01:59,313 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 129 treesize of output 93 [2021-11-03 04:01:59,838 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:01:59,839 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 233 treesize of output 89 [2021-11-03 04:02:00,490 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 04:02:00,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:02:01,708 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 497 treesize of output 465 [2021-11-03 04:02:01,718 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 505 treesize of output 441 [2021-11-03 04:02:01,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:02:01,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3966