./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_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_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/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_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/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_8bef6923-cce9-419c-83ff-208dfb17b818/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 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:53:39,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:53:39,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:53:39,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:53:39,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:53:39,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:53:39,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:53:39,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:53:39,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:53:39,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:53:39,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:53:39,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:53:39,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:53:39,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:53:39,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:53:39,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:53:39,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:53:39,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:53:39,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:53:39,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:53:39,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:53:39,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:53:39,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:53:39,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:53:39,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:53:39,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:53:39,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:53:39,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:53:39,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:53:39,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:53:39,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:53:39,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:53:39,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:53:39,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:53:39,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:53:39,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:53:39,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:53:39,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:53:39,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:53:39,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:53:39,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:53:39,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:53:39,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:53:39,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:53:39,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:53:39,738 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:53:39,739 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:53:39,739 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:53:39,739 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:53:39,739 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:53:39,739 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:53:39,740 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:53:39,741 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:53:39,741 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:53:39,741 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:53:39,741 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:53:39,741 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:53:39,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:53:39,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:53:39,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:53:39,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:53:39,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:53:39,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:53:39,743 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:53:39,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:53:39,744 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:53:39,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:53:39,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:53:39,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:53:39,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:53:39,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:53:39,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:53:39,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:53:39,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:53:39,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:53:39,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:53:39,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:53:39,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:53:39,748 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_8bef6923-cce9-419c-83ff-208dfb17b818/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab [2021-11-03 04:53:40,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:53:40,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:53:40,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:53:40,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:53:40,077 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:53:40,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-03 04:53:40,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/ca9909565/424b94ce85164309825a7e94b6ae0a4e/FLAGb483129a4 [2021-11-03 04:53:40,946 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:53:40,946 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-03 04:53:40,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/ca9909565/424b94ce85164309825a7e94b6ae0a4e/FLAGb483129a4 [2021-11-03 04:53:41,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/ca9909565/424b94ce85164309825a7e94b6ae0a4e [2021-11-03 04:53:41,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:53:41,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:53:41,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:53:41,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:53:41,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:53:41,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:41" (1/1) ... [2021-11-03 04:53:41,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1672b1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:41, skipping insertion in model container [2021-11-03 04:53:41,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:41" (1/1) ... [2021-11-03 04:53:41,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:53:41,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:53:41,980 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-03 04:53:41,989 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-03 04:53:42,025 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:53:42,040 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:53:43,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:43,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:53:43,557 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:53:43,558 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:53:43,559 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:53:43,561 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:53:43,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:53:43,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:53:43,563 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:53:43,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:53:43,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:53:43,831 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:53:43,859 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:53:43,869 INFO L168 Benchmark]: Toolchain (without parser) took 2403.48 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 68.1 MB in the beginning and 100.7 MB in the end (delta: -32.6 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:53:43,871 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:53:43,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2401.08 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 67.8 MB in the beginning and 100.7 MB in the end (delta: -32.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:53:43,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2401.08 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 67.8 MB in the beginning and 100.7 MB in the end (delta: -32.9 MB). Peak memory consumption was 33.2 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_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/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_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/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_8bef6923-cce9-419c-83ff-208dfb17b818/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 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:53:46,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:53:46,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:53:46,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:53:46,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:53:46,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:53:46,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:53:46,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:53:46,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:53:46,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:53:46,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:53:46,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:53:46,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:53:46,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:53:46,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:53:46,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:53:46,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:53:46,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:53:46,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:53:46,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:53:46,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:53:46,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:53:46,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:53:46,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:53:46,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:53:46,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:53:46,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:53:46,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:53:46,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:53:46,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:53:46,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:53:46,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:53:46,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:53:46,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:53:46,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:53:46,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:53:46,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:53:46,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:53:46,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:53:46,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:53:46,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:53:46,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:53:46,253 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:53:46,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:53:46,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:53:46,258 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:53:46,258 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:53:46,258 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:53:46,258 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:53:46,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:53:46,259 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:53:46,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:53:46,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:53:46,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:53:46,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:53:46,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:53:46,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:53:46,263 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:53:46,263 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:53:46,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:53:46,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:53:46,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:53:46,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:53:46,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:53:46,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:53:46,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:53:46,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:53:46,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:53:46,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:53:46,266 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:53:46,266 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:53:46,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:53:46,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:53:46,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:53:46,267 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_8bef6923-cce9-419c-83ff-208dfb17b818/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab [2021-11-03 04:53:46,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:53:46,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:53:46,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:53:46,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:53:46,658 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:53:46,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-03 04:53:46,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/497f07394/348bfa7c43e649b6b720344c2ae20ecf/FLAG2e68054e1 [2021-11-03 04:53:47,726 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:53:47,727 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-03 04:53:47,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/497f07394/348bfa7c43e649b6b720344c2ae20ecf/FLAG2e68054e1 [2021-11-03 04:53:48,197 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/data/497f07394/348bfa7c43e649b6b720344c2ae20ecf [2021-11-03 04:53:48,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:53:48,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:53:48,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:53:48,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:53:48,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:53:48,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:48" (1/1) ... [2021-11-03 04:53:48,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7403138b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:48, skipping insertion in model container [2021-11-03 04:53:48,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:48" (1/1) ... [2021-11-03 04:53:48,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:53:48,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:53:48,780 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-03 04:53:48,789 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-03 04:53:48,820 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:53:48,828 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:53:50,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:50,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:53:50,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:53:50,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:53:50,574 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:53:50,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:53:50,577 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:53:50,577 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:53:50,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:53:50,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:53:50,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:53:50,794 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:53:51,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:53:51,333 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:53:51,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:53:51,423 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-03 04:53:51,424 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-03 04:53:51,426 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:53:51,427 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:53:51,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,483 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:53:51,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:53:51,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:53:51,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:53:51,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:53:51,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:53:51,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:53:51,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:53:51,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:53:51,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:53:51,541 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:53:51,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:53:51,819 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:53:51,843 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4493,4506] [2021-11-03 04:53:51,844 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_8bef6923-cce9-419c-83ff-208dfb17b818/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i[4553,4566] [2021-11-03 04:53:51,845 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:53:51,847 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:53:51,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,942 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,943 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:51,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:53:51,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:53:51,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:53:51,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:53:51,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:53:51,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:53:51,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:53:51,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:53:51,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:53:51,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:53:52,015 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:53:52,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:53:52,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:53:52,708 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:53:52,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52 WrapperNode [2021-11-03 04:53:52,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:53:52,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:53:52,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:53:52,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:53:52,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:52,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:52,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:53:52,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:53:52,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:53:52,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:53:52,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:52,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:52,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:52,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:53,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:53,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:53,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:53,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:53:53,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:53:53,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:53:53,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:53:53,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (1/1) ... [2021-11-03 04:53:53,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:53:53,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:53:53,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:53:53,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:53:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 04:53:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:53:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:53:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:53:53,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:53:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:53:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:53:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:53:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:53:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:53:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:53:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:53:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:53:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:53:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:53:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:53:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:53:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:53:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:53:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:54:11,510 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !true; [2021-11-03 04:54:11,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:54:11,520 INFO L299 CfgBuilder]: Removed 157 assume(true) statements. [2021-11-03 04:54:11,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:54:11 BoogieIcfgContainer [2021-11-03 04:54:11,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:54:11,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:54:11,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:54:11,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:54:11,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:53:48" (1/3) ... [2021-11-03 04:54:11,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d47012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:54:11, skipping insertion in model container [2021-11-03 04:54:11,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:52" (2/3) ... [2021-11-03 04:54:11,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d47012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:54:11, skipping insertion in model container [2021-11-03 04:54:11,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:54:11" (3/3) ... [2021-11-03 04:54:11,530 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness.i [2021-11-03 04:54:11,535 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:54:11,535 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:54:11,581 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:54:11,586 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:54:11,586 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:54:11,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 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 04:54:11,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:54:11,614 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:54:11,615 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 04:54:11,615 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:54:11,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:54:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1999182466, now seen corresponding path program 1 times [2021-11-03 04:54:11,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:54:11,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760423818] [2021-11-03 04:54:11,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:54:11,641 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:54:11,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:54:11,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:54:11,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:54:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:54:15,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:54:15,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:54:16,141 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 04:54:16,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:54:16,320 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 04:54:16,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:54:16,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760423818] [2021-11-03 04:54:16,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760423818] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:54:16,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:54:16,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:54:16,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693820411] [2021-11-03 04:54:16,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:54:16,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:54:16,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:54:16,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:54:16,354 INFO L87 Difference]: Start difference. First operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 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 31.0) internal successors, (62), 2 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 04:54:16,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:54:16,401 INFO L93 Difference]: Finished difference Result 399 states and 562 transitions. [2021-11-03 04:54:16,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:54:16,403 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 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 04:54:16,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:54:16,420 INFO L225 Difference]: With dead ends: 399 [2021-11-03 04:54:16,420 INFO L226 Difference]: Without dead ends: 195 [2021-11-03 04:54:16,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:54:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-03 04:54:16,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-03 04:54:16,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 194 states have internal predecessors, (257), 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 04:54:16,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2021-11-03 04:54:16,495 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 62 [2021-11-03 04:54:16,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:54:16,496 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2021-11-03 04:54:16,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 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 04:54:16,496 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2021-11-03 04:54:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 04:54:16,502 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:54:16,502 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, 1, 1] [2021-11-03 04:54:16,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:54:16,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:54:16,717 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:54:16,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:54:16,717 INFO L85 PathProgramCache]: Analyzing trace with hash 312696489, now seen corresponding path program 1 times [2021-11-03 04:54:16,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:54:16,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848654109] [2021-11-03 04:54:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:54:16,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:54:16,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:54:16,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:54:16,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:54:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:54:20,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:54:20,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:54:21,185 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 04:54:21,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:54:21,480 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 04:54:21,480 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:54:21,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848654109] [2021-11-03 04:54:21,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848654109] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:54:21,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:54:21,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:54:21,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578284231] [2021-11-03 04:54:21,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:54:21,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:54:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:54:21,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:54:21,484 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 04:54:21,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:54:21,902 INFO L93 Difference]: Finished difference Result 547 states and 727 transitions. [2021-11-03 04:54:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:54:21,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2021-11-03 04:54:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:54:21,906 INFO L225 Difference]: With dead ends: 547 [2021-11-03 04:54:21,906 INFO L226 Difference]: Without dead ends: 374 [2021-11-03 04:54:21,909 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 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 04:54:21,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-03 04:54:21,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 201. [2021-11-03 04:54:21,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 200 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 04:54:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 263 transitions. [2021-11-03 04:54:21,940 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 263 transitions. Word has length 65 [2021-11-03 04:54:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:54:21,940 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 263 transitions. [2021-11-03 04:54:21,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 04:54:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 263 transitions. [2021-11-03 04:54:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 04:54:21,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:54:21,943 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, 1, 1, 1, 1, 1, 1] [2021-11-03 04:54:21,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:54:22,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:54:22,162 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:54:22,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:54:22,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1921794729, now seen corresponding path program 1 times [2021-11-03 04:54:22,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:54:22,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390717509] [2021-11-03 04:54:22,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:54:22,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:54:22,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:54:22,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:54:22,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:54:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:54:26,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:54:26,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:54:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:54:26,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:54:26,815 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 04:54:26,815 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:54:26,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390717509] [2021-11-03 04:54:26,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390717509] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:54:26,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:54:26,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:54:26,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464240541] [2021-11-03 04:54:26,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:54:26,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:54:26,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:54:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:54:26,817 INFO L87 Difference]: Start difference. First operand 201 states and 263 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 04:54:27,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:54:27,149 INFO L93 Difference]: Finished difference Result 379 states and 499 transitions. [2021-11-03 04:54:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:54:27,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 69 [2021-11-03 04:54:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:54:27,152 INFO L225 Difference]: With dead ends: 379 [2021-11-03 04:54:27,152 INFO L226 Difference]: Without dead ends: 201 [2021-11-03 04:54:27,154 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 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 04:54:27,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-03 04:54:27,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 195. [2021-11-03 04:54:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3386243386243386) internal successors, (253), 194 states have internal predecessors, (253), 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 04:54:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2021-11-03 04:54:27,165 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 69 [2021-11-03 04:54:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:54:27,166 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2021-11-03 04:54:27,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 04:54:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2021-11-03 04:54:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 04:54:27,168 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:54:27,168 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:54:27,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:54:27,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:54:27,381 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:54:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:54:27,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1564681509, now seen corresponding path program 1 times [2021-11-03 04:54:27,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:54:27,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674309432] [2021-11-03 04:54:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:54:27,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:54:27,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:54:27,387 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:54:27,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:54:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:54:31,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:54:31,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:54:32,232 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 04:54:32,561 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 04:54:32,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:54:32,785 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 04:54:33,158 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 04:54:33,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:54:33,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674309432] [2021-11-03 04:54:33,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674309432] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:54:33,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:54:33,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:54:33,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690819675] [2021-11-03 04:54:33,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:54:33,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:54:33,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:54:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:54:33,160 INFO L87 Difference]: Start difference. First operand 195 states and 253 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 04:54:43,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:54:43,071 INFO L93 Difference]: Finished difference Result 399 states and 520 transitions. [2021-11-03 04:54:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:54:43,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 75 [2021-11-03 04:54:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:54:43,076 INFO L225 Difference]: With dead ends: 399 [2021-11-03 04:54:43,077 INFO L226 Difference]: Without dead ends: 239 [2021-11-03 04:54:43,078 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 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 04:54:43,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-03 04:54:43,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 216. [2021-11-03 04:54:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 210 states have (on average 1.319047619047619) internal successors, (277), 215 states have internal predecessors, (277), 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 04:54:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 277 transitions. [2021-11-03 04:54:43,095 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 277 transitions. Word has length 75 [2021-11-03 04:54:43,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:54:43,095 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 277 transitions. [2021-11-03 04:54:43,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 04:54:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 277 transitions. [2021-11-03 04:54:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 04:54:43,106 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:54:43,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:54:43,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:54:43,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:54:43,325 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:54:43,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:54:43,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2045761767, now seen corresponding path program 1 times [2021-11-03 04:54:43,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:54:43,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396497786] [2021-11-03 04:54:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:54:43,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:54:43,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:54:43,331 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:54:43,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:54:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:54:47,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:54:47,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:54:47,866 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 04:54:47,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:54:48,234 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 04:54:48,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:54:48,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396497786] [2021-11-03 04:54:48,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396497786] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:54:48,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:54:48,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:54:48,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620899429] [2021-11-03 04:54:48,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:54:48,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:54:48,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:54:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:54:48,236 INFO L87 Difference]: Start difference. First operand 216 states and 277 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 04:54:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:54:48,482 INFO L93 Difference]: Finished difference Result 398 states and 516 transitions. [2021-11-03 04:54:48,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:54:48,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 75 [2021-11-03 04:54:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:54:48,486 INFO L225 Difference]: With dead ends: 398 [2021-11-03 04:54:48,486 INFO L226 Difference]: Without dead ends: 214 [2021-11-03 04:54:48,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 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 04:54:48,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-03 04:54:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-03 04:54:48,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 213 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 04:54:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 270 transitions. [2021-11-03 04:54:48,502 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 270 transitions. Word has length 75 [2021-11-03 04:54:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:54:48,503 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 270 transitions. [2021-11-03 04:54:48,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 04:54:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 270 transitions. [2021-11-03 04:54:48,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 04:54:48,510 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:54:48,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:54:48,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:54:48,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:54:48,729 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:54:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:54:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -601323936, now seen corresponding path program 1 times [2021-11-03 04:54:48,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:54:48,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037919247] [2021-11-03 04:54:48,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:54:48,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:54:48,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:54:48,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:54:48,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:54:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:54:52,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:54:52,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:54:53,351 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 04:54:53,458 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 04:54:53,670 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 04:54:53,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:54:53,914 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 04:54:54,286 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 04:54:54,286 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:54:54,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037919247] [2021-11-03 04:54:54,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037919247] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:54:54,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:54:54,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:54:54,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773251352] [2021-11-03 04:54:54,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:54:54,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:54:54,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:54:54,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:54:54,289 INFO L87 Difference]: Start difference. First operand 214 states and 270 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 04:55:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:55:03,218 INFO L93 Difference]: Finished difference Result 519 states and 671 transitions. [2021-11-03 04:55:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:55:03,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 77 [2021-11-03 04:55:03,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:55:03,223 INFO L225 Difference]: With dead ends: 519 [2021-11-03 04:55:03,223 INFO L226 Difference]: Without dead ends: 339 [2021-11-03 04:55:03,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:55:03,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-03 04:55:03,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 215. [2021-11-03 04:55:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.291866028708134) internal successors, (270), 214 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 04:55:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 270 transitions. [2021-11-03 04:55:03,236 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 270 transitions. Word has length 77 [2021-11-03 04:55:03,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:55:03,237 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 270 transitions. [2021-11-03 04:55:03,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 04:55:03,237 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 270 transitions. [2021-11-03 04:55:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 04:55:03,238 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:55:03,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:55:03,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:55:03,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:55:03,453 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:55:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:55:03,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1211223159, now seen corresponding path program 1 times [2021-11-03 04:55:03,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:55:03,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634240258] [2021-11-03 04:55:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:55:03,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:55:03,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:55:03,457 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:55:03,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:55:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:55:07,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:55:07,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:55:08,166 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 04:55:08,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:55:08,349 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 04:55:08,349 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:55:08,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634240258] [2021-11-03 04:55:08,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634240258] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:55:08,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:55:08,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:55:08,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181209516] [2021-11-03 04:55:08,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:55:08,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:55:08,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:55:08,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:55:08,351 INFO L87 Difference]: Start difference. First operand 215 states and 270 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 04:55:08,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:55:08,907 INFO L93 Difference]: Finished difference Result 421 states and 549 transitions. [2021-11-03 04:55:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:55:08,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2021-11-03 04:55:08,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:55:08,911 INFO L225 Difference]: With dead ends: 421 [2021-11-03 04:55:08,911 INFO L226 Difference]: Without dead ends: 291 [2021-11-03 04:55:08,911 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:55:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-03 04:55:08,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 215. [2021-11-03 04:55:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.2822966507177034) internal successors, (268), 214 states have internal predecessors, (268), 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 04:55:08,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2021-11-03 04:55:08,927 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 78 [2021-11-03 04:55:08,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:55:08,928 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2021-11-03 04:55:08,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 04:55:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2021-11-03 04:55:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-03 04:55:08,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:55:08,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:55:08,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 04:55:09,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:55:09,133 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:55:09,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:55:09,133 INFO L85 PathProgramCache]: Analyzing trace with hash -443995649, now seen corresponding path program 1 times [2021-11-03 04:55:09,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:55:09,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683244068] [2021-11-03 04:55:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:55:09,136 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:55:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:55:09,137 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:55:09,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:55:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:55:13,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:55:13,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:55:14,053 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 32 treesize of output 24 [2021-11-03 04:55:14,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-03 04:55:14,221 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 04:55:14,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:55:14,597 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 04:55:14,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:55:14,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683244068] [2021-11-03 04:55:14,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683244068] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:55:14,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:55:14,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:55:14,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281041429] [2021-11-03 04:55:14,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:55:14,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:55:14,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:55:14,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:55:14,600 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 04:55:32,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:55:32,221 INFO L93 Difference]: Finished difference Result 374 states and 479 transitions. [2021-11-03 04:55:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:55:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 82 [2021-11-03 04:55:32,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:55:32,226 INFO L225 Difference]: With dead ends: 374 [2021-11-03 04:55:32,226 INFO L226 Difference]: Without dead ends: 246 [2021-11-03 04:55:32,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:55:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-03 04:55:32,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 195. [2021-11-03 04:55:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.2698412698412698) internal successors, (240), 194 states have internal predecessors, (240), 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 04:55:32,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 240 transitions. [2021-11-03 04:55:32,241 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 240 transitions. Word has length 82 [2021-11-03 04:55:32,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:55:32,242 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 240 transitions. [2021-11-03 04:55:32,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 04:55:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 240 transitions. [2021-11-03 04:55:32,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-03 04:55:32,243 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:55:32,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:55:32,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:55:32,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:55:32,469 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:55:32,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:55:32,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1981477469, now seen corresponding path program 1 times [2021-11-03 04:55:32,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:55:32,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269646121] [2021-11-03 04:55:32,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:55:32,474 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:55:32,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:55:32,475 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:55:32,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:55:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:55:37,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:55:37,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:55:37,363 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 04:55:37,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:55:37,604 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 04:55:37,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:55:37,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269646121] [2021-11-03 04:55:37,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269646121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:55:37,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:55:37,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:55:37,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403475550] [2021-11-03 04:55:37,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:55:37,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:55:37,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:55:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:55:37,606 INFO L87 Difference]: Start difference. First operand 195 states and 240 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 04:55:37,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:55:37,646 INFO L93 Difference]: Finished difference Result 318 states and 404 transitions. [2021-11-03 04:55:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:55:37,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 84 [2021-11-03 04:55:37,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:55:37,651 INFO L225 Difference]: With dead ends: 318 [2021-11-03 04:55:37,652 INFO L226 Difference]: Without dead ends: 197 [2021-11-03 04:55:37,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:55:37,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-03 04:55:37,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-03 04:55:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.2670157068062826) internal successors, (242), 196 states have internal predecessors, (242), 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 04:55:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 242 transitions. [2021-11-03 04:55:37,667 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 242 transitions. Word has length 84 [2021-11-03 04:55:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:55:37,668 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 242 transitions. [2021-11-03 04:55:37,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 04:55:37,669 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 242 transitions. [2021-11-03 04:55:37,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-03 04:55:37,669 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:55:37,670 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:37,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:55:37,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:55:37,873 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:55:37,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:55:37,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1445575357, now seen corresponding path program 1 times [2021-11-03 04:55:37,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:55:37,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162877949] [2021-11-03 04:55:37,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:55:37,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:55:37,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:55:37,878 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:55:37,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:55:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:55:42,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:55:42,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:55:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:55:42,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:55:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:55:43,465 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:55:43,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162877949] [2021-11-03 04:55:43,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162877949] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:55:43,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [57361995] [2021-11-03 04:55:43,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:55:43,465 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:55:43,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:55:43,467 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:55:43,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-03 04:55:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:55:45,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:55:45,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:55:45,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:55:45,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:55:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:55:46,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [57361995] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:55:46,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:55:46,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-03 04:55:46,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948162063] [2021-11-03 04:55:46,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:55:46,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:55:46,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:55:46,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:55:46,065 INFO L87 Difference]: Start difference. First operand 197 states and 242 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 04:55:48,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:55:48,693 INFO L93 Difference]: Finished difference Result 280 states and 350 transitions. [2021-11-03 04:55:48,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:55:48,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 86 [2021-11-03 04:55:48,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:55:48,698 INFO L225 Difference]: With dead ends: 280 [2021-11-03 04:55:48,698 INFO L226 Difference]: Without dead ends: 198 [2021-11-03 04:55:48,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:55:48,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-03 04:55:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2021-11-03 04:55:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.256544502617801) internal successors, (240), 196 states have internal predecessors, (240), 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 04:55:48,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 240 transitions. [2021-11-03 04:55:48,711 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 240 transitions. Word has length 86 [2021-11-03 04:55:48,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:55:48,712 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 240 transitions. [2021-11-03 04:55:48,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 04:55:48,712 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 240 transitions. [2021-11-03 04:55:48,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 04:55:48,713 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:55:48,713 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:48,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:55:48,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:55:49,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:55:49,120 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:55:49,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:55:49,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1862922237, now seen corresponding path program 1 times [2021-11-03 04:55:49,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:55:49,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567045788] [2021-11-03 04:55:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:55:49,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:55:49,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:55:49,124 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:55:49,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:55:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:55:54,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:55:54,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:55:54,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:55:54,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:55:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:55:54,933 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:55:54,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567045788] [2021-11-03 04:55:54,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567045788] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:55:54,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1116249762] [2021-11-03 04:55:54,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:55:54,934 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:55:54,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:55:54,945 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:55:54,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-03 04:55:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:55:59,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:56:00,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:00,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:00,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:00,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:00,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1116249762] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:56:00,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742638805] [2021-11-03 04:56:00,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:00,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:56:00,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:56:00,454 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:56:00,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-03 04:56:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:02,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:56:02,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:03,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:03,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742638805] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:56:03,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:56:03,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-11-03 04:56:03,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121269489] [2021-11-03 04:56:03,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:56:03,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:03,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:56:03,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:56:03,422 INFO L87 Difference]: Start difference. First operand 197 states and 240 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 04:56:03,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:03,855 INFO L93 Difference]: Finished difference Result 322 states and 406 transitions. [2021-11-03 04:56:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:56:03,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 87 [2021-11-03 04:56:03,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:03,858 INFO L225 Difference]: With dead ends: 322 [2021-11-03 04:56:03,858 INFO L226 Difference]: Without dead ends: 201 [2021-11-03 04:56:03,859 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:56:03,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-03 04:56:03,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-03 04:56:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.2512820512820513) internal successors, (244), 200 states have internal predecessors, (244), 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 04:56:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 244 transitions. [2021-11-03 04:56:03,877 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 244 transitions. Word has length 87 [2021-11-03 04:56:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:03,877 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 244 transitions. [2021-11-03 04:56:03,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 04:56:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 244 transitions. [2021-11-03 04:56:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 04:56:03,881 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:03,881 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:03,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:04,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:04,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:04,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:56:04,505 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:56:04,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:04,506 INFO L85 PathProgramCache]: Analyzing trace with hash 756105021, now seen corresponding path program 2 times [2021-11-03 04:56:04,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:04,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611937294] [2021-11-03 04:56:04,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:56:04,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:04,510 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:04,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bef6923-cce9-419c-83ff-208dfb17b818/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 04:57:53,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 04:57:53,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:57:55,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1829 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-03 04:57:55,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:56,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:56,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 109 [2021-11-03 04:57:58,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:58,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:58,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:58,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:58,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:58,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:58,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:58,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:59,245 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-03 04:57:59,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 48 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 533 treesize of output 357 [2021-11-03 04:58:00,929 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 507 treesize of output 411 [2021-11-03 04:58:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-03 04:58:01,318 INFO L328 TraceCheckSpWp]: Computing backward predicates...