./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_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_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/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_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/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_73217332-e2c4-453e-b4d8-14a5d4a0b593/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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:26:16,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:26:16,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:26:16,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:26:16,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:26:16,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:26:16,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:26:16,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:26:16,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:26:16,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:26:16,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:26:16,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:26:16,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:26:16,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:26:16,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:26:16,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:26:16,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:26:16,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:26:16,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:26:16,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:26:16,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:26:16,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:26:16,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:26:16,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:26:16,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:26:16,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:26:16,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:26:16,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:26:16,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:26:16,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:26:16,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:26:16,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:26:16,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:26:16,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:26:16,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:26:16,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:26:16,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:26:16,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:26:16,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:26:16,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:26:16,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:26:16,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:26:16,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:26:16,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:26:16,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:26:16,936 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:26:16,936 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:26:16,936 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:26:16,936 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:26:16,937 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:26:16,937 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:26:16,937 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:26:16,938 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:26:16,938 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:26:16,939 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:26:16,939 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:26:16,939 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:26:16,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:26:16,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:26:16,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:26:16,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:26:16,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:26:16,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:26:16,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:26:16,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:26:16,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:26:16,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:26:16,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:26:16,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:26:16,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:26:16,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:26:16,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:26:16,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:26:16,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:26:16,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:26:16,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:26:16,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:26:16,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:26:16,945 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-03 04:26:17,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:26:17,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:26:17,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:26:17,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:26:17,229 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:26:17,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-03 04:26:17,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/67cec5d2d/5549cd5434684750884f921d06cdb35c/FLAG912c8dc67 [2021-11-03 04:26:18,186 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:26:18,187 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-03 04:26:18,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/67cec5d2d/5549cd5434684750884f921d06cdb35c/FLAG912c8dc67 [2021-11-03 04:26:18,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/67cec5d2d/5549cd5434684750884f921d06cdb35c [2021-11-03 04:26:18,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:26:18,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:26:18,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:26:18,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:26:18,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:26:18,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:26:18" (1/1) ... [2021-11-03 04:26:18,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e02739e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:18, skipping insertion in model container [2021-11-03 04:26:18,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:26:18" (1/1) ... [2021-11-03 04:26:18,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:26:18,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:26:19,045 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-03 04:26:19,052 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-03 04:26:19,074 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:26:19,080 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:26:20,016 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:26:20,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,156 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:20,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:26:20,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:26:20,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:26:20,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:26:20,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:26:20,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:26:20,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:26:20,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:26:20,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:26:20,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:26:20,744 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:26:20,749 INFO L168 Benchmark]: Toolchain (without parser) took 2098.53 ms. Allocated memory is still 125.8 MB. Free memory was 84.4 MB in the beginning and 70.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:26:20,750 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:26:20,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2095.53 ms. Allocated memory is still 125.8 MB. Free memory was 84.4 MB in the beginning and 70.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:26:20,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2095.53 ms. Allocated memory is still 125.8 MB. Free memory was 84.4 MB in the beginning and 70.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/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_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/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_73217332-e2c4-453e-b4d8-14a5d4a0b593/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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:26:22,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:26:22,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:26:23,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:26:23,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:26:23,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:26:23,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:26:23,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:26:23,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:26:23,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:26:23,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:26:23,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:26:23,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:26:23,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:26:23,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:26:23,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:26:23,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:26:23,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:26:23,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:26:23,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:26:23,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:26:23,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:26:23,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:26:23,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:26:23,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:26:23,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:26:23,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:26:23,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:26:23,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:26:23,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:26:23,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:26:23,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:26:23,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:26:23,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:26:23,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:26:23,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:26:23,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:26:23,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:26:23,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:26:23,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:26:23,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:26:23,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:26:23,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:26:23,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:26:23,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:26:23,163 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:26:23,163 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:26:23,164 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:26:23,164 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:26:23,164 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:26:23,165 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:26:23,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:26:23,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:26:23,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:26:23,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:26:23,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:26:23,168 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:26:23,168 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:26:23,169 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:26:23,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:26:23,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:26:23,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:26:23,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:26:23,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:26:23,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:26:23,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:26:23,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:26:23,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:26:23,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:26:23,171 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:26:23,171 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:26:23,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:26:23,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:26:23,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:26:23,172 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-03 04:26:23,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:26:23,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:26:23,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:26:23,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:26:23,563 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:26:23,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-03 04:26:23,642 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/a6ea3eddb/023bfb8857aa44e48c5300c87ffd7fe6/FLAG6f9b689db [2021-11-03 04:26:24,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:26:24,599 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-03 04:26:24,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/a6ea3eddb/023bfb8857aa44e48c5300c87ffd7fe6/FLAG6f9b689db [2021-11-03 04:26:25,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/data/a6ea3eddb/023bfb8857aa44e48c5300c87ffd7fe6 [2021-11-03 04:26:25,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:26:25,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:26:25,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:26:25,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:26:25,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:26:25,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:26:25" (1/1) ... [2021-11-03 04:26:25,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d424c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:25, skipping insertion in model container [2021-11-03 04:26:25,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:26:25" (1/1) ... [2021-11-03 04:26:25,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:26:25,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:26:25,547 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-03 04:26:25,555 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-03 04:26:25,585 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:26:25,598 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:26:26,443 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:26:26,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:26,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:26:26,928 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:26:26,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:26:26,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:26:26,932 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:26:26,933 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:26:26,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:26:26,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:26:26,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:26:26,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:26:27,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:26:27,193 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:26:27,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:26:27,245 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-03 04:26:27,245 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-03 04:26:27,247 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:26:27,248 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:26:27,278 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:26:27,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:26:27,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:26:27,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:26:27,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:26:27,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:26:27,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:26:27,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:26:27,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:26:27,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:26:27,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:26:27,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,432 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:26:27,451 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:26:27,463 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_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-03 04:26:27,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-03 04:26:27,466 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:26:27,467 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:26:27,511 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:26:27,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:26:27,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:26:27,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:26:27,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:26:27,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:26:27,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:26:27,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:26:27,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:26:27,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:26:27,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:26:27,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:26:27,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:26:28,057 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:26:28,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28 WrapperNode [2021-11-03 04:26:28,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:26:28,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:26:28,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:26:28,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:26:28,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:26:28,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:26:28,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:26:28,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:26:28,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:26:28,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:26:28,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:26:28,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:26:28,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (1/1) ... [2021-11-03 04:26:28,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:26:28,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:26:28,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:26:28,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:26:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:26:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:26:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:26:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:26:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:26:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:26:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:26:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:26:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:26:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:26:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:26:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:26:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:26:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:26:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:26:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:26:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:26:47,480 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:26:47,481 INFO L299 CfgBuilder]: Removed 428 assume(true) statements. [2021-11-03 04:26:47,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:26:47 BoogieIcfgContainer [2021-11-03 04:26:47,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:26:47,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:26:47,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:26:47,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:26:47,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:26:25" (1/3) ... [2021-11-03 04:26:47,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e11d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:26:47, skipping insertion in model container [2021-11-03 04:26:47,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:26:28" (2/3) ... [2021-11-03 04:26:47,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e11d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:26:47, skipping insertion in model container [2021-11-03 04:26:47,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:26:47" (3/3) ... [2021-11-03 04:26:47,497 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-11-03 04:26:47,505 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:26:47,506 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-03 04:26:47,561 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:26:47,568 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 04:26:47,568 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-03 04:26:47,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 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 04:26:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:26:47,599 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:47,599 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] [2021-11-03 04:26:47,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:26:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:47,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1815671953, now seen corresponding path program 1 times [2021-11-03 04:26:47,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:47,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89131613] [2021-11-03 04:26:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:47,632 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:47,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:47,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:47,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:26:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:51,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1673 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:26:51,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:52,145 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 04:26:52,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:52,395 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 04:26:52,396 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:26:52,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89131613] [2021-11-03 04:26:52,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89131613] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:26:52,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:26:52,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:26:52,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590114750] [2021-11-03 04:26:52,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:26:52,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:26:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:26:52,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:26:52,425 INFO L87 Difference]: Start difference. First operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 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 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:52,520 INFO L93 Difference]: Finished difference Result 994 states and 1339 transitions. [2021-11-03 04:26:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:26:52,521 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 04:26:52,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:52,540 INFO L225 Difference]: With dead ends: 994 [2021-11-03 04:26:52,540 INFO L226 Difference]: Without dead ends: 494 [2021-11-03 04:26:52,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 04:26:52,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-11-03 04:26:52,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2021-11-03 04:26:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 474 states have (on average 1.3059071729957805) internal successors, (619), 493 states have internal predecessors, (619), 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 04:26:52,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 619 transitions. [2021-11-03 04:26:52,701 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 619 transitions. Word has length 58 [2021-11-03 04:26:52,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:52,702 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 619 transitions. [2021-11-03 04:26:52,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 619 transitions. [2021-11-03 04:26:52,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:26:52,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:52,705 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] [2021-11-03 04:26:52,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:26:52,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:52,925 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:26:52,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:52,926 INFO L85 PathProgramCache]: Analyzing trace with hash 145257767, now seen corresponding path program 1 times [2021-11-03 04:26:52,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:52,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978663905] [2021-11-03 04:26:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:52,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:52,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:52,931 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:52,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:26:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:57,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1673 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:26:57,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:57,298 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 04:26:57,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:57,570 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 04:26:57,570 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:26:57,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978663905] [2021-11-03 04:26:57,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978663905] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:26:57,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:26:57,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:26:57,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884204062] [2021-11-03 04:26:57,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:26:57,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:26:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:26:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:26:57,574 INFO L87 Difference]: Start difference. First operand 494 states and 619 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:57,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:57,650 INFO L93 Difference]: Finished difference Result 975 states and 1223 transitions. [2021-11-03 04:26:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:26:57,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 04:26:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:57,655 INFO L225 Difference]: With dead ends: 975 [2021-11-03 04:26:57,655 INFO L226 Difference]: Without dead ends: 495 [2021-11-03 04:26:57,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:26:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-03 04:26:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-03 04:26:57,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.305263157894737) internal successors, (620), 494 states have internal predecessors, (620), 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 04:26:57,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 620 transitions. [2021-11-03 04:26:57,677 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 620 transitions. Word has length 58 [2021-11-03 04:26:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:57,678 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 620 transitions. [2021-11-03 04:26:57,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:26:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 620 transitions. [2021-11-03 04:26:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:26:57,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:57,681 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] [2021-11-03 04:26:57,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:26:57,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:57,894 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:26:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash -298642907, now seen corresponding path program 1 times [2021-11-03 04:26:57,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:57,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70517833] [2021-11-03 04:26:57,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:57,898 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:57,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:57,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:57,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:27:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:27:01,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 04:27:01,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:27:02,556 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:27:02,557 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 155 treesize of output 59 [2021-11-03 04:27:02,865 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 04:27:02,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:27:03,833 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 04:27:03,833 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:27:03,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70517833] [2021-11-03 04:27:03,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70517833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:27:03,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:27:03,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 04:27:03,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883526433] [2021-11-03 04:27:03,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:27:03,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:27:03,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:27:03,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:27:03,836 INFO L87 Difference]: Start difference. First operand 495 states and 620 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 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 04:29:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:29:22,988 INFO L93 Difference]: Finished difference Result 1514 states and 1896 transitions. [2021-11-03 04:29:22,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:29:22,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 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 58 [2021-11-03 04:29:22,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:29:22,998 INFO L225 Difference]: With dead ends: 1514 [2021-11-03 04:29:22,998 INFO L226 Difference]: Without dead ends: 1034 [2021-11-03 04:29:23,000 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:29:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-11-03 04:29:23,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 491. [2021-11-03 04:29:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 471 states have (on average 1.305732484076433) internal successors, (615), 490 states have internal predecessors, (615), 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 04:29:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 615 transitions. [2021-11-03 04:29:23,026 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 615 transitions. Word has length 58 [2021-11-03 04:29:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:29:23,027 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 615 transitions. [2021-11-03 04:29:23,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 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 04:29:23,027 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 615 transitions. [2021-11-03 04:29:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 04:29:23,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:29:23,031 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:29:23,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:29:23,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:29:23,248 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:29:23,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:29:23,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1913244431, now seen corresponding path program 1 times [2021-11-03 04:29:23,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:29:23,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530992075] [2021-11-03 04:29:23,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:29:23,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:29:23,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:29:23,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:29:23,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:29:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:29:27,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1685 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:29:27,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:29:27,641 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 04:29:27,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:29:27,917 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 04:29:27,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:29:27,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530992075] [2021-11-03 04:29:27,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530992075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:29:27,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:29:27,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:29:27,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566573564] [2021-11-03 04:29:27,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:29:27,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:29:27,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:29:27,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:29:27,920 INFO L87 Difference]: Start difference. First operand 491 states and 615 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:29:29,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:29:29,439 INFO L93 Difference]: Finished difference Result 954 states and 1195 transitions. [2021-11-03 04:29:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:29:29,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-03 04:29:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:29:29,444 INFO L225 Difference]: With dead ends: 954 [2021-11-03 04:29:29,444 INFO L226 Difference]: Without dead ends: 491 [2021-11-03 04:29:29,445 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:29:29,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-11-03 04:29:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-11-03 04:29:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 471 states have (on average 1.29723991507431) internal successors, (611), 490 states have internal predecessors, (611), 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 04:29:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 611 transitions. [2021-11-03 04:29:29,468 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 611 transitions. Word has length 61 [2021-11-03 04:29:29,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:29:29,469 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 611 transitions. [2021-11-03 04:29:29,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:29:29,469 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 611 transitions. [2021-11-03 04:29:29,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-03 04:29:29,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:29:29,472 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, 1] [2021-11-03 04:29:29,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:29:29,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:29:29,688 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:29:29,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:29:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1297163805, now seen corresponding path program 1 times [2021-11-03 04:29:29,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:29:29,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339957092] [2021-11-03 04:29:29,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:29:29,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:29:29,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:29:29,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:29:29,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:29:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:29:33,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:29:33,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:29:35,174 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 04:29:35,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:29:37,944 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:29:37,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-03 04:29:37,986 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-03 04:29:37,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-03 04:29:38,215 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 04:29:38,216 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:29:38,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339957092] [2021-11-03 04:29:38,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339957092] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:29:38,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:29:38,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-03 04:29:38,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58182147] [2021-11-03 04:29:38,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:29:38,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:29:38,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:29:38,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:29:38,218 INFO L87 Difference]: Start difference. First operand 491 states and 611 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 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 04:30:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:12,018 INFO L93 Difference]: Finished difference Result 1507 states and 1889 transitions. [2021-11-03 04:30:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:30:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 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 85 [2021-11-03 04:30:12,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:12,025 INFO L225 Difference]: With dead ends: 1507 [2021-11-03 04:30:12,026 INFO L226 Difference]: Without dead ends: 1042 [2021-11-03 04:30:12,027 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=192, Invalid=408, Unknown=0, NotChecked=0, Total=600 [2021-11-03 04:30:12,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-11-03 04:30:12,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 894. [2021-11-03 04:30:12,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 874 states have (on average 1.3180778032036613) internal successors, (1152), 893 states have internal predecessors, (1152), 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 04:30:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1152 transitions. [2021-11-03 04:30:12,073 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1152 transitions. Word has length 85 [2021-11-03 04:30:12,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:12,074 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1152 transitions. [2021-11-03 04:30:12,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 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 04:30:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1152 transitions. [2021-11-03 04:30:12,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 04:30:12,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:12,076 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, 1, 1, 1] [2021-11-03 04:30:12,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:12,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:12,284 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:30:12,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:12,284 INFO L85 PathProgramCache]: Analyzing trace with hash 490142557, now seen corresponding path program 1 times [2021-11-03 04:30:12,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:12,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51384131] [2021-11-03 04:30:12,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:12,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:12,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:12,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:12,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:30:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:16,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:30:16,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:17,325 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 04:30:17,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:17,790 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 04:30:17,790 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:17,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51384131] [2021-11-03 04:30:17,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51384131] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:17,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:17,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:30:17,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278605140] [2021-11-03 04:30:17,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:30:17,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:17,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:30:17,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:30:17,792 INFO L87 Difference]: Start difference. First operand 894 states and 1152 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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 04:30:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:18,683 INFO L93 Difference]: Finished difference Result 2164 states and 2790 transitions. [2021-11-03 04:30:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:30:18,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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 04:30:18,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:18,692 INFO L225 Difference]: With dead ends: 2164 [2021-11-03 04:30:18,692 INFO L226 Difference]: Without dead ends: 1302 [2021-11-03 04:30:18,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:30:18,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2021-11-03 04:30:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 894. [2021-11-03 04:30:18,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 874 states have (on average 1.3146453089244852) internal successors, (1149), 893 states have internal predecessors, (1149), 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 04:30:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1149 transitions. [2021-11-03 04:30:18,742 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1149 transitions. Word has length 87 [2021-11-03 04:30:18,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:18,743 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1149 transitions. [2021-11-03 04:30:18,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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 04:30:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1149 transitions. [2021-11-03 04:30:18,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 04:30:18,745 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:18,745 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, 1, 1, 1, 1, 1, 1] [2021-11-03 04:30:18,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:18,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:18,959 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:30:18,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:18,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1104878978, now seen corresponding path program 1 times [2021-11-03 04:30:18,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:18,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653391460] [2021-11-03 04:30:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:18,962 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:18,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:18,963 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:18,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:30:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:23,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:30:23,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:24,105 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 04:30:24,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:24,465 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 04:30:24,465 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:24,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653391460] [2021-11-03 04:30:24,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653391460] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:24,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:24,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:30:24,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640187937] [2021-11-03 04:30:24,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:30:24,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:30:24,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:30:24,467 INFO L87 Difference]: Start difference. First operand 894 states and 1149 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:25,430 INFO L93 Difference]: Finished difference Result 2085 states and 2691 transitions. [2021-11-03 04:30:25,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 04:30:25,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-03 04:30:25,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:25,450 INFO L225 Difference]: With dead ends: 2085 [2021-11-03 04:30:25,450 INFO L226 Difference]: Without dead ends: 1302 [2021-11-03 04:30:25,452 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:30:25,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2021-11-03 04:30:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 894. [2021-11-03 04:30:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 874 states have (on average 1.3123569794050343) internal successors, (1147), 893 states have internal predecessors, (1147), 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 04:30:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1147 transitions. [2021-11-03 04:30:25,507 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1147 transitions. Word has length 90 [2021-11-03 04:30:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:25,509 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1147 transitions. [2021-11-03 04:30:25,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1147 transitions. [2021-11-03 04:30:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 04:30:25,511 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:25,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:30:25,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:25,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:25,740 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:30:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:25,740 INFO L85 PathProgramCache]: Analyzing trace with hash 682177152, now seen corresponding path program 1 times [2021-11-03 04:30:25,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:25,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585318310] [2021-11-03 04:30:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:25,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:25,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:25,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:25,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:30:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:30,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:30:30,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:31,043 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 04:30:31,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:31,586 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 04:30:31,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:31,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585318310] [2021-11-03 04:30:31,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585318310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:31,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:31,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:30:31,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655826271] [2021-11-03 04:30:31,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:30:31,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:31,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:30:31,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:30:31,589 INFO L87 Difference]: Start difference. First operand 894 states and 1147 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:33,475 INFO L93 Difference]: Finished difference Result 1643 states and 2120 transitions. [2021-11-03 04:30:33,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:30:33,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-03 04:30:33,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:33,482 INFO L225 Difference]: With dead ends: 1643 [2021-11-03 04:30:33,482 INFO L226 Difference]: Without dead ends: 894 [2021-11-03 04:30:33,484 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:30:33,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-11-03 04:30:33,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2021-11-03 04:30:33,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 874 states have (on average 1.303203661327231) internal successors, (1139), 893 states have internal predecessors, (1139), 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 04:30:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1139 transitions. [2021-11-03 04:30:33,539 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1139 transitions. Word has length 90 [2021-11-03 04:30:33,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:33,539 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1139 transitions. [2021-11-03 04:30:33,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:33,539 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1139 transitions. [2021-11-03 04:30:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 04:30:33,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:33,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:30:33,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:33,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:33,756 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:30:33,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:33,756 INFO L85 PathProgramCache]: Analyzing trace with hash -19316964, now seen corresponding path program 1 times [2021-11-03 04:30:33,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:33,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302372573] [2021-11-03 04:30:33,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:33,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:33,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:33,762 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:33,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:30:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:38,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 1942 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:30:38,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:39,355 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 04:30:39,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:39,952 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 04:30:39,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:39,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302372573] [2021-11-03 04:30:39,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302372573] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:39,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:39,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 04:30:39,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358445736] [2021-11-03 04:30:39,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:30:39,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:39,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:30:39,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:30:39,955 INFO L87 Difference]: Start difference. First operand 894 states and 1139 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 04:30:42,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:42,233 INFO L93 Difference]: Finished difference Result 1609 states and 2061 transitions. [2021-11-03 04:30:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:30:42,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2021-11-03 04:30:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:42,240 INFO L225 Difference]: With dead ends: 1609 [2021-11-03 04:30:42,240 INFO L226 Difference]: Without dead ends: 894 [2021-11-03 04:30:42,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:30:42,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-11-03 04:30:42,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2021-11-03 04:30:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 874 states have (on average 1.2894736842105263) internal successors, (1127), 893 states have internal predecessors, (1127), 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 04:30:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1127 transitions. [2021-11-03 04:30:42,296 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1127 transitions. Word has length 98 [2021-11-03 04:30:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:42,296 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1127 transitions. [2021-11-03 04:30:42,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 04:30:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1127 transitions. [2021-11-03 04:30:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 04:30:42,298 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:42,298 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, 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 04:30:42,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:42,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:42,520 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:30:42,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1364799160, now seen corresponding path program 1 times [2021-11-03 04:30:42,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:42,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713933163] [2021-11-03 04:30:42,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:42,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:42,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:42,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:42,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:30:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:47,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:30:47,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:48,077 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 04:30:48,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:48,249 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 04:30:48,250 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:48,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713933163] [2021-11-03 04:30:48,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713933163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:48,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:48,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:30:48,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877391610] [2021-11-03 04:30:48,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:30:48,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:48,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:30:48,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:30:48,252 INFO L87 Difference]: Start difference. First operand 894 states and 1127 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:48,510 INFO L93 Difference]: Finished difference Result 2099 states and 2655 transitions. [2021-11-03 04:30:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:30:48,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-03 04:30:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:48,518 INFO L225 Difference]: With dead ends: 2099 [2021-11-03 04:30:48,518 INFO L226 Difference]: Without dead ends: 1502 [2021-11-03 04:30:48,520 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 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 04:30:48,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2021-11-03 04:30:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 897. [2021-11-03 04:30:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 877 states have (on average 1.2884834663625997) internal successors, (1130), 896 states have internal predecessors, (1130), 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 04:30:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1130 transitions. [2021-11-03 04:30:48,583 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1130 transitions. Word has length 106 [2021-11-03 04:30:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:48,583 INFO L470 AbstractCegarLoop]: Abstraction has 897 states and 1130 transitions. [2021-11-03 04:30:48,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:48,584 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1130 transitions. [2021-11-03 04:30:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-03 04:30:48,585 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:48,585 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, 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 04:30:48,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:48,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:48,809 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:30:48,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1476362052, now seen corresponding path program 1 times [2021-11-03 04:30:48,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:48,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229452946] [2021-11-03 04:30:48,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:48,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:48,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:48,813 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:48,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:30:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:54,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2004 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:30:54,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:54,918 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 04:30:54,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:55,690 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 04:30:55,690 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:55,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229452946] [2021-11-03 04:30:55,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229452946] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:55,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:55,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:30:55,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596309176] [2021-11-03 04:30:55,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:30:55,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:30:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:30:55,693 INFO L87 Difference]: Start difference. First operand 897 states and 1130 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:58,090 INFO L93 Difference]: Finished difference Result 1494 states and 1883 transitions. [2021-11-03 04:30:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:30:58,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-03 04:30:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:58,096 INFO L225 Difference]: With dead ends: 1494 [2021-11-03 04:30:58,096 INFO L226 Difference]: Without dead ends: 897 [2021-11-03 04:30:58,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:30:58,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2021-11-03 04:30:58,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2021-11-03 04:30:58,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 877 states have (on average 1.281641961231471) internal successors, (1124), 896 states have internal predecessors, (1124), 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 04:30:58,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1124 transitions. [2021-11-03 04:30:58,160 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1124 transitions. Word has length 108 [2021-11-03 04:30:58,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:58,161 INFO L470 AbstractCegarLoop]: Abstraction has 897 states and 1124 transitions. [2021-11-03 04:30:58,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:58,161 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1124 transitions. [2021-11-03 04:30:58,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-03 04:30:58,163 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:58,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:30:58,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:58,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:58,372 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-03 04:30:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:58,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1659959392, now seen corresponding path program 1 times [2021-11-03 04:30:58,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:58,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125085570] [2021-11-03 04:30:58,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:58,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:58,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:58,377 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:58,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73217332-e2c4-453e-b4d8-14a5d4a0b593/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process