./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_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_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/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_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/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_d29bd853-a6a0-43fc-99ca-141c91427254/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 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:16:31,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:16:31,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:16:31,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:16:31,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:16:31,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:16:31,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:16:31,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:16:31,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:16:31,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:16:31,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:16:31,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:16:31,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:16:31,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:16:31,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:16:31,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:16:31,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:16:31,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:16:31,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:16:31,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:16:31,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:16:31,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:16:31,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:16:31,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:16:31,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:16:31,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:16:31,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:16:31,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:16:31,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:16:31,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:16:31,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:16:31,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:16:31,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:16:31,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:16:31,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:16:31,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:16:31,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:16:31,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:16:31,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:16:31,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:16:31,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:16:31,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:16:31,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:16:31,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:16:31,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:16:31,471 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:16:31,471 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:16:31,471 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:16:31,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:16:31,472 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:16:31,472 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:16:31,472 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:16:31,479 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:16:31,480 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:16:31,480 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:16:31,480 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:16:31,480 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:16:31,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:16:31,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:16:31,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:16:31,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:16:31,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:16:31,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:16:31,482 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:16:31,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:16:31,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:16:31,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:16:31,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:16:31,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:16:31,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:16:31,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:16:31,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:16:31,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:16:31,485 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:16:31,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:16:31,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:16:31,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:16:31,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:16:31,486 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_d29bd853-a6a0-43fc-99ca-141c91427254/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 [2021-11-03 04:16:31,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:16:31,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:16:31,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:16:31,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:16:31,814 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:16:31,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-03 04:16:31,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/08a357689/ac08272f41c14da68ec21f91407c4120/FLAG53299dbe3 [2021-11-03 04:16:32,692 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:16:32,693 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-03 04:16:32,750 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/08a357689/ac08272f41c14da68ec21f91407c4120/FLAG53299dbe3 [2021-11-03 04:16:33,212 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/08a357689/ac08272f41c14da68ec21f91407c4120 [2021-11-03 04:16:33,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:16:33,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:16:33,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:16:33,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:16:33,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:16:33,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:16:33" (1/1) ... [2021-11-03 04:16:33,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee3879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:33, skipping insertion in model container [2021-11-03 04:16:33,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:16:33" (1/1) ... [2021-11-03 04:16:33,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:16:33,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:16:33,630 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-03 04:16:33,638 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-03 04:16:33,662 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:16:33,668 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:16:34,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:34,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:35,353 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:16:35,354 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:16:35,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:16:35,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:16:35,360 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:16:35,361 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:16:35,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:16:35,364 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:16:35,365 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:16:35,366 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:16:35,593 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:16:35,614 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:16:35,622 INFO L168 Benchmark]: Toolchain (without parser) took 2404.08 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 57.1 MB in the beginning and 60.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:35,623 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:16:35,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2401.89 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 57.1 MB in the beginning and 60.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:35,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2401.89 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 57.1 MB in the beginning and 60.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 25.9 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_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/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_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/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_d29bd853-a6a0-43fc-99ca-141c91427254/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 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:16:38,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:16:38,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:16:38,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:16:38,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:16:38,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:16:38,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:16:38,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:16:38,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:16:38,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:16:38,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:16:38,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:16:38,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:16:38,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:16:38,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:16:38,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:16:38,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:16:38,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:16:38,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:16:38,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:16:38,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:16:38,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:16:38,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:16:38,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:16:38,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:16:38,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:16:38,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:16:38,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:16:38,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:16:38,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:16:38,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:16:38,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:16:38,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:16:38,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:16:38,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:16:38,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:16:38,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:16:38,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:16:38,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:16:38,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:16:38,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:16:38,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:16:38,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:16:38,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:16:38,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:16:38,228 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:16:38,228 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:16:38,228 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:16:38,228 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:16:38,229 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:16:38,229 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:16:38,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:16:38,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:16:38,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:16:38,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:16:38,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:16:38,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:16:38,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:16:38,233 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:16:38,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:16:38,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:16:38,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:16:38,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:16:38,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:16:38,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:16:38,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:16:38,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:16:38,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:16:38,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:16:38,236 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:16:38,237 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:16:38,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:16:38,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:16:38,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:16:38,238 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_d29bd853-a6a0-43fc-99ca-141c91427254/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 [2021-11-03 04:16:38,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:16:38,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:16:38,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:16:38,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:16:38,777 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:16:38,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-03 04:16:38,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/48337ea5a/bdf0debd2be6409ba9d0240e99041264/FLAGa5c94c4c0 [2021-11-03 04:16:39,985 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:16:39,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-03 04:16:40,032 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/48337ea5a/bdf0debd2be6409ba9d0240e99041264/FLAGa5c94c4c0 [2021-11-03 04:16:40,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/data/48337ea5a/bdf0debd2be6409ba9d0240e99041264 [2021-11-03 04:16:40,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:16:40,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:16:40,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:16:40,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:16:40,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:16:40,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:16:40" (1/1) ... [2021-11-03 04:16:40,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cc9c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:40, skipping insertion in model container [2021-11-03 04:16:40,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:16:40" (1/1) ... [2021-11-03 04:16:40,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:16:40,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:16:40,880 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-03 04:16:40,887 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-03 04:16:40,912 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:16:40,918 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:16:42,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,356 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:42,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:16:42,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:16:42,955 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:16:42,956 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:16:42,957 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:16:42,958 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:16:42,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:16:42,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:16:42,961 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:16:42,961 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:16:43,259 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:16:43,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:16:43,550 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:16:43,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:16:43,619 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-03 04:16:43,620 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-03 04:16:43,621 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:16:43,622 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:16:43,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:16:43,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:16:43,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:16:43,749 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:16:43,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:16:43,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:16:43,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:16:43,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:16:43,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:16:43,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:16:43,786 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:16:43,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:16:43,936 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:16:43,951 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-03 04:16:43,951 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_d29bd853-a6a0-43fc-99ca-141c91427254/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-03 04:16:43,953 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:16:43,954 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:16:43,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:43,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:44,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:16:44,076 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:16:44,077 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:16:44,078 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:16:44,080 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:16:44,080 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:16:44,081 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:16:44,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:16:44,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:16:44,083 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:16:44,107 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:16:44,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:44,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:16:44,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:16:44,759 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:16:44,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44 WrapperNode [2021-11-03 04:16:44,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:16:44,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:16:44,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:16:44,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:16:44,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:44,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:16:45,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:16:45,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:16:45,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:16:45,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:16:45,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:16:45,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:16:45,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:16:45,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (1/1) ... [2021-11-03 04:16:45,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:16:45,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:16:45,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:16:45,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:16:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:16:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:16:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:16:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:16:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:16:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:16:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:16:45,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:16:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:16:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:16:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:16:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:16:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:16:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:16:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:17:07,815 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:17:07,816 INFO L299 CfgBuilder]: Removed 139 assume(true) statements. [2021-11-03 04:17:07,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:17:07 BoogieIcfgContainer [2021-11-03 04:17:07,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:17:07,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:17:07,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:17:07,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:17:07,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:16:40" (1/3) ... [2021-11-03 04:17:07,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db163ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:17:07, skipping insertion in model container [2021-11-03 04:17:07,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:16:44" (2/3) ... [2021-11-03 04:17:07,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db163ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:17:07, skipping insertion in model container [2021-11-03 04:17:07,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:17:07" (3/3) ... [2021-11-03 04:17:07,829 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_advance_harness.i [2021-11-03 04:17:07,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:17:07,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-11-03 04:17:07,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:17:07,899 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 04:17:07,900 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-11-03 04:17:07,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 329 states, 305 states have (on average 1.4950819672131148) internal successors, (456), 328 states have internal predecessors, (456), 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 04:17:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 04:17:07,934 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:07,935 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] [2021-11-03 04:17:07,936 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:17:07,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:07,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1060108463, now seen corresponding path program 1 times [2021-11-03 04:17:07,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:07,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442173309] [2021-11-03 04:17:07,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:07,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:07,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:07,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:07,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:17:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:12,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:17:12,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:12,754 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 04:17:12,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:13,039 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 04:17:13,040 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:13,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442173309] [2021-11-03 04:17:13,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442173309] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:13,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:13,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:17:13,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390462627] [2021-11-03 04:17:13,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:17:13,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:13,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:17:13,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:17:13,072 INFO L87 Difference]: Start difference. First operand has 329 states, 305 states have (on average 1.4950819672131148) internal successors, (456), 328 states have internal predecessors, (456), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 04:17:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:13,136 INFO L93 Difference]: Finished difference Result 654 states and 907 transitions. [2021-11-03 04:17:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:17:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-03 04:17:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:13,150 INFO L225 Difference]: With dead ends: 654 [2021-11-03 04:17:13,151 INFO L226 Difference]: Without dead ends: 324 [2021-11-03 04:17:13,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 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 04:17:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-03 04:17:13,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-03 04:17:13,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 301 states have (on average 1.3754152823920265) internal successors, (414), 323 states have internal predecessors, (414), 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 04:17:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 414 transitions. [2021-11-03 04:17:13,208 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 414 transitions. Word has length 40 [2021-11-03 04:17:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:13,209 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 414 transitions. [2021-11-03 04:17:13,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 04:17:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 414 transitions. [2021-11-03 04:17:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 04:17:13,212 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:13,212 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] [2021-11-03 04:17:13,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:17:13,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:13,435 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:17:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:13,436 INFO L85 PathProgramCache]: Analyzing trace with hash 187425810, now seen corresponding path program 1 times [2021-11-03 04:17:13,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:13,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621425667] [2021-11-03 04:17:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:13,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:13,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:13,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:13,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:17:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:17,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:17:17,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:18,172 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 04:17:18,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:18,407 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 04:17:18,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:18,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621425667] [2021-11-03 04:17:18,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621425667] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:18,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:18,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:17:18,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145433515] [2021-11-03 04:17:18,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:17:18,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:18,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:17:18,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:17:18,411 INFO L87 Difference]: Start difference. First operand 324 states and 414 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 04:17:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:26,730 INFO L93 Difference]: Finished difference Result 622 states and 794 transitions. [2021-11-03 04:17:26,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:17:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-03 04:17:26,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:26,735 INFO L225 Difference]: With dead ends: 622 [2021-11-03 04:17:26,735 INFO L226 Difference]: Without dead ends: 324 [2021-11-03 04:17:26,738 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 04:17:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-03 04:17:26,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-03 04:17:26,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 301 states have (on average 1.3654485049833887) internal successors, (411), 323 states have internal predecessors, (411), 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 04:17:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 411 transitions. [2021-11-03 04:17:26,762 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 411 transitions. Word has length 42 [2021-11-03 04:17:26,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:26,762 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 411 transitions. [2021-11-03 04:17:26,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 04:17:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 411 transitions. [2021-11-03 04:17:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:17:26,766 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:26,766 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:17:26,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:26,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:26,979 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:17:26,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:26,980 INFO L85 PathProgramCache]: Analyzing trace with hash -646967702, now seen corresponding path program 1 times [2021-11-03 04:17:26,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:26,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856703435] [2021-11-03 04:17:26,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:26,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:26,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:26,986 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:26,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:17:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:31,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1900 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:17:31,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:31,707 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 04:17:31,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:31,944 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 04:17:31,945 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:31,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856703435] [2021-11-03 04:17:31,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856703435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:31,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:31,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:17:31,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412289053] [2021-11-03 04:17:31,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:17:31,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:17:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:17:31,947 INFO L87 Difference]: Start difference. First operand 324 states and 411 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:17:41,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:41,017 INFO L93 Difference]: Finished difference Result 733 states and 944 transitions. [2021-11-03 04:17:41,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:17:41,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 04:17:41,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:41,021 INFO L225 Difference]: With dead ends: 733 [2021-11-03 04:17:41,021 INFO L226 Difference]: Without dead ends: 434 [2021-11-03 04:17:41,024 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 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 04:17:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-03 04:17:41,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 346. [2021-11-03 04:17:41,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3405572755417956) internal successors, (433), 345 states have internal predecessors, (433), 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 04:17:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 433 transitions. [2021-11-03 04:17:41,047 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 433 transitions. Word has length 54 [2021-11-03 04:17:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:41,047 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 433 transitions. [2021-11-03 04:17:41,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:17:41,048 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 433 transitions. [2021-11-03 04:17:41,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:17:41,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:41,051 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:17:41,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:41,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:41,267 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:17:41,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:41,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1198399464, now seen corresponding path program 1 times [2021-11-03 04:17:41,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:41,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420766213] [2021-11-03 04:17:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:41,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:41,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:41,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:41,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:17:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:45,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:17:45,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:46,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:17:46,646 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 04:17:46,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:47,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 04:17:47,398 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 04:17:47,398 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:47,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420766213] [2021-11-03 04:17:47,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420766213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:47,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:47,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 04:17:47,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646425874] [2021-11-03 04:17:47,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:17:47,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:47,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:17:47,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:17:47,401 INFO L87 Difference]: Start difference. First operand 346 states and 433 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 04:18:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:18:43,240 INFO L93 Difference]: Finished difference Result 1099 states and 1394 transitions. [2021-11-03 04:18:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 04:18:43,241 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 04:18:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:18:43,246 INFO L225 Difference]: With dead ends: 1099 [2021-11-03 04:18:43,246 INFO L226 Difference]: Without dead ends: 780 [2021-11-03 04:18:43,248 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:18:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-03 04:18:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 344. [2021-11-03 04:18:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 321 states have (on average 1.3395638629283488) internal successors, (430), 343 states have internal predecessors, (430), 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 04:18:43,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 430 transitions. [2021-11-03 04:18:43,265 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 430 transitions. Word has length 54 [2021-11-03 04:18:43,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:18:43,266 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 430 transitions. [2021-11-03 04:18:43,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 04:18:43,266 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 430 transitions. [2021-11-03 04:18:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:18:43,269 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:18:43,269 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 04:18:43,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:18:43,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:18:43,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:18:43,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:18:43,476 INFO L85 PathProgramCache]: Analyzing trace with hash 463192434, now seen corresponding path program 1 times [2021-11-03 04:18:43,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:18:43,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480706866] [2021-11-03 04:18:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:18:43,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:18:43,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:18:43,484 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:18:43,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:18:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:47,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1909 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:18:47,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:48,376 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:18:48,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 04:18:48,646 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 04:18:48,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:49,306 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 04:18:49,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:18:49,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480706866] [2021-11-03 04:18:49,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480706866] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:18:49,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:18:49,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:18:49,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978325790] [2021-11-03 04:18:49,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:18:49,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:18:49,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:18:49,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:18:49,309 INFO L87 Difference]: Start difference. First operand 344 states and 430 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 04:19:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:25,829 INFO L93 Difference]: Finished difference Result 1075 states and 1331 transitions. [2021-11-03 04:19:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:19:25,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 04:19:25,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:25,836 INFO L225 Difference]: With dead ends: 1075 [2021-11-03 04:19:25,836 INFO L226 Difference]: Without dead ends: 751 [2021-11-03 04:19:25,837 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:19:25,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-11-03 04:19:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 419. [2021-11-03 04:19:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.3282828282828283) internal successors, (526), 418 states have internal predecessors, (526), 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 04:19:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 526 transitions. [2021-11-03 04:19:25,854 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 526 transitions. Word has length 58 [2021-11-03 04:19:25,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:25,855 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 526 transitions. [2021-11-03 04:19:25,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 04:19:25,855 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 526 transitions. [2021-11-03 04:19:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:19:25,857 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:25,858 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 04:19:25,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 04:19:26,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:26,079 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:19:26,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash -908614864, now seen corresponding path program 1 times [2021-11-03 04:19:26,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:26,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519870767] [2021-11-03 04:19:26,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:26,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:26,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:26,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:26,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:19:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:30,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:19:30,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:31,053 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:19:31,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 04:19:31,798 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 04:19:31,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:32,661 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 04:19:32,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:32,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519870767] [2021-11-03 04:19:32,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519870767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:32,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:32,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 04:19:32,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774214285] [2021-11-03 04:19:32,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:19:32,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:32,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:19:32,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:19:32,665 INFO L87 Difference]: Start difference. First operand 419 states and 526 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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 04:20:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:51,469 INFO L93 Difference]: Finished difference Result 1358 states and 1608 transitions. [2021-11-03 04:20:51,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:20:51,471 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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 04:20:51,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:51,478 INFO L225 Difference]: With dead ends: 1358 [2021-11-03 04:20:51,478 INFO L226 Difference]: Without dead ends: 882 [2021-11-03 04:20:51,480 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:20:51,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-11-03 04:20:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 419. [2021-11-03 04:20:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.2828282828282829) internal successors, (508), 418 states have internal predecessors, (508), 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 04:20:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 508 transitions. [2021-11-03 04:20:51,506 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 508 transitions. Word has length 58 [2021-11-03 04:20:51,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:51,507 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 508 transitions. [2021-11-03 04:20:51,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 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 04:20:51,507 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 508 transitions. [2021-11-03 04:20:51,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 04:20:51,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:51,509 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] [2021-11-03 04:20:51,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:20:51,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:20:51,731 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:20:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash -619205810, now seen corresponding path program 1 times [2021-11-03 04:20:51,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:51,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262651338] [2021-11-03 04:20:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:51,735 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:51,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:51,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:51,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:20:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:56,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:20:56,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:56,556 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 04:20:56,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:56,702 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 04:20:56,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:56,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262651338] [2021-11-03 04:20:56,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262651338] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:56,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:56,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:20:56,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956819475] [2021-11-03 04:20:56,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:20:56,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:20:56,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:20:56,704 INFO L87 Difference]: Start difference. First operand 419 states and 508 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 04:21:01,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:01,083 INFO L93 Difference]: Finished difference Result 621 states and 750 transitions. [2021-11-03 04:21:01,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:21:01,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2021-11-03 04:21:01,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:01,086 INFO L225 Difference]: With dead ends: 621 [2021-11-03 04:21:01,086 INFO L226 Difference]: Without dead ends: 419 [2021-11-03 04:21:01,087 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:21:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-11-03 04:21:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2021-11-03 04:21:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.2803030303030303) internal successors, (507), 418 states have internal predecessors, (507), 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 04:21:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 507 transitions. [2021-11-03 04:21:01,102 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 507 transitions. Word has length 66 [2021-11-03 04:21:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:01,103 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 507 transitions. [2021-11-03 04:21:01,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 04:21:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 507 transitions. [2021-11-03 04:21:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 04:21:01,105 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:01,105 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] [2021-11-03 04:21:01,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 04:21:01,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:01,323 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:21:01,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash -800005695, now seen corresponding path program 1 times [2021-11-03 04:21:01,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:01,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937516919] [2021-11-03 04:21:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:01,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:01,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:01,328 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:01,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:21:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:05,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:21:05,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:06,133 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 04:21:06,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:06,331 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 04:21:06,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:06,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937516919] [2021-11-03 04:21:06,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937516919] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:06,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:06,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:21:06,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802632242] [2021-11-03 04:21:06,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:21:06,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:21:06,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:21:06,333 INFO L87 Difference]: Start difference. First operand 419 states and 507 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 04:21:06,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:06,364 INFO L93 Difference]: Finished difference Result 754 states and 904 transitions. [2021-11-03 04:21:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:21:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 70 [2021-11-03 04:21:06,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:06,370 INFO L225 Difference]: With dead ends: 754 [2021-11-03 04:21:06,370 INFO L226 Difference]: Without dead ends: 554 [2021-11-03 04:21:06,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:21:06,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-11-03 04:21:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 419. [2021-11-03 04:21:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 396 states have (on average 1.2777777777777777) internal successors, (506), 418 states have internal predecessors, (506), 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 04:21:06,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 506 transitions. [2021-11-03 04:21:06,390 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 506 transitions. Word has length 70 [2021-11-03 04:21:06,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:06,390 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 506 transitions. [2021-11-03 04:21:06,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 04:21:06,390 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 506 transitions. [2021-11-03 04:21:06,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 04:21:06,391 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:06,391 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] [2021-11-03 04:21:06,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:06,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:06,595 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:21:06,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:06,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1461613979, now seen corresponding path program 1 times [2021-11-03 04:21:06,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:06,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428621223] [2021-11-03 04:21:06,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:06,601 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:06,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:06,603 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:06,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:21:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:11,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:21:11,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:11,762 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 04:21:11,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:11,985 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 04:21:11,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:11,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428621223] [2021-11-03 04:21:11,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428621223] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:11,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:11,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:21:11,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600499352] [2021-11-03 04:21:11,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:21:11,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:11,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:21:11,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:21:11,988 INFO L87 Difference]: Start difference. First operand 419 states and 506 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:12,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:12,079 INFO L93 Difference]: Finished difference Result 757 states and 908 transitions. [2021-11-03 04:21:12,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:21:12,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-03 04:21:12,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:12,084 INFO L225 Difference]: With dead ends: 757 [2021-11-03 04:21:12,084 INFO L226 Difference]: Without dead ends: 557 [2021-11-03 04:21:12,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:21:12,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-03 04:21:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 422. [2021-11-03 04:21:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 399 states have (on average 1.2756892230576442) internal successors, (509), 421 states have internal predecessors, (509), 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 04:21:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 509 transitions. [2021-11-03 04:21:12,102 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 509 transitions. Word has length 71 [2021-11-03 04:21:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:12,102 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 509 transitions. [2021-11-03 04:21:12,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 509 transitions. [2021-11-03 04:21:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 04:21:12,104 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:12,104 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] [2021-11-03 04:21:12,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:12,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:12,305 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:21:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1919673891, now seen corresponding path program 1 times [2021-11-03 04:21:12,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:12,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490959698] [2021-11-03 04:21:12,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:12,308 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:12,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:12,309 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:12,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:21:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:17,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:21:17,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:17,697 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 04:21:17,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:17,922 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 04:21:17,922 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:17,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490959698] [2021-11-03 04:21:17,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490959698] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:17,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:17,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 04:21:17,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566713987] [2021-11-03 04:21:17,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:21:17,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:17,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:21:17,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:21:17,924 INFO L87 Difference]: Start difference. First operand 422 states and 509 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:32,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:32,173 INFO L93 Difference]: Finished difference Result 703 states and 835 transitions. [2021-11-03 04:21:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:21:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-03 04:21:32,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:32,178 INFO L225 Difference]: With dead ends: 703 [2021-11-03 04:21:32,178 INFO L226 Difference]: Without dead ends: 682 [2021-11-03 04:21:32,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:21:32,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-11-03 04:21:32,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 442. [2021-11-03 04:21:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 419 states have (on average 1.2577565632458234) internal successors, (527), 441 states have internal predecessors, (527), 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 04:21:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 527 transitions. [2021-11-03 04:21:32,200 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 527 transitions. Word has length 72 [2021-11-03 04:21:32,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:32,201 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 527 transitions. [2021-11-03 04:21:32,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 527 transitions. [2021-11-03 04:21:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 04:21:32,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:32,203 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:21:32,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:32,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:32,419 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:21:32,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:32,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2135238441, now seen corresponding path program 1 times [2021-11-03 04:21:32,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:32,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774178538] [2021-11-03 04:21:32,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:32,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:32,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:32,424 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:32,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:21:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:37,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:21:37,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:37,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:38,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:38,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774178538] [2021-11-03 04:21:38,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774178538] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:21:38,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1373244140] [2021-11-03 04:21:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:38,045 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:21:38,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:21:38,046 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:21:38,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-03 04:21:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:39,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:21:39,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 04:21:40,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 04:21:41,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1373244140] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:41,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:21:41,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-03 04:21:41,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351344556] [2021-11-03 04:21:41,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:21:41,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:21:41,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:21:41,181 INFO L87 Difference]: Start difference. First operand 442 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 04:21:48,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:48,066 INFO L93 Difference]: Finished difference Result 752 states and 886 transitions. [2021-11-03 04:21:48,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:21:48,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 04:21:48,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:48,070 INFO L225 Difference]: With dead ends: 752 [2021-11-03 04:21:48,071 INFO L226 Difference]: Without dead ends: 577 [2021-11-03 04:21:48,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:21:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-11-03 04:21:48,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 442. [2021-11-03 04:21:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 419 states have (on average 1.2553699284009547) internal successors, (526), 441 states have internal predecessors, (526), 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 04:21:48,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 526 transitions. [2021-11-03 04:21:48,092 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 526 transitions. Word has length 75 [2021-11-03 04:21:48,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:48,092 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 526 transitions. [2021-11-03 04:21:48,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 04:21:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 526 transitions. [2021-11-03 04:21:48,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 04:21:48,094 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:48,094 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] [2021-11-03 04:21:48,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:48,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-03 04:21:48,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:48,505 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:21:48,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:48,505 INFO L85 PathProgramCache]: Analyzing trace with hash 971653275, now seen corresponding path program 1 times [2021-11-03 04:21:48,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:48,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664116039] [2021-11-03 04:21:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:48,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:48,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:48,511 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:48,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:22:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:15,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1940 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-03 04:22:15,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:17,508 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:22:17,509 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 192 treesize of output 96 [2021-11-03 04:22:17,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 84 [2021-11-03 04:22:17,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 113 [2021-11-03 04:22:18,613 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:22:18,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 218 treesize of output 90 [2021-11-03 04:22:18,872 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 04:22:18,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:25,033 WARN L207 SmtUtils]: Spent 5.76 s on a formula simplification. DAG size of input: 719 DAG size of output: 92 [2021-11-03 04:22:25,034 INFO L354 Elim1Store]: treesize reduction 8872, result has 1.9 percent of original size [2021-11-03 04:22:25,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 16 case distinctions, treesize of input 178 treesize of output 238 [2021-11-03 04:22:25,071 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-03 04:22:25,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 238 treesize of output 98 [2021-11-03 04:22:27,450 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:22:27,451 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 102 treesize of output 105 [2021-11-03 04:22:27,522 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:22:27,522 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 101 treesize of output 104 [2021-11-03 04:22:38,603 WARN L207 SmtUtils]: Spent 9.91 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 04:22:38,607 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 04:22:38,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 135 treesize of output 778 [2021-11-03 04:23:01,581 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 04:23:01,581 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:01,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664116039] [2021-11-03 04:23:01,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664116039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:01,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:01,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 13] imperfect sequences [] total 23 [2021-11-03 04:23:01,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925174059] [2021-11-03 04:23:01,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-03 04:23:01,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:01,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-03 04:23:01,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:23:01,584 INFO L87 Difference]: Start difference. First operand 442 states and 526 transitions. Second operand has 23 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 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 04:26:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:33,711 INFO L93 Difference]: Finished difference Result 1551 states and 1792 transitions. [2021-11-03 04:26:33,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-03 04:26:33,713 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 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 76 [2021-11-03 04:26:33,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:33,719 INFO L225 Difference]: With dead ends: 1551 [2021-11-03 04:26:33,720 INFO L226 Difference]: Without dead ends: 1216 [2021-11-03 04:26:33,724 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1537 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=1084, Invalid=4616, Unknown=0, NotChecked=0, Total=5700 [2021-11-03 04:26:33,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2021-11-03 04:26:33,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 477. [2021-11-03 04:26:33,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 454 states have (on average 1.2444933920704846) internal successors, (565), 476 states have internal predecessors, (565), 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 04:26:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 565 transitions. [2021-11-03 04:26:33,748 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 565 transitions. Word has length 76 [2021-11-03 04:26:33,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:33,748 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 565 transitions. [2021-11-03 04:26:33,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 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 04:26:33,749 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 565 transitions. [2021-11-03 04:26:33,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 04:26:33,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:33,750 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] [2021-11-03 04:26:33,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:26:33,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:33,975 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 04:26:33,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:33,976 INFO L85 PathProgramCache]: Analyzing trace with hash 713487837, now seen corresponding path program 1 times [2021-11-03 04:26:33,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:33,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886254058] [2021-11-03 04:26:33,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:33,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:33,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:33,981 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:33,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29bd853-a6a0-43fc-99ca-141c91427254/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:27:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:27:03,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-03 04:27:03,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:27:03,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-03 04:27:04,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:04,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,560 WARN L207 SmtUtils]: Spent 10.62 s on a formula simplification. DAG size of input: 1017 DAG size of output: 124 [2021-11-03 04:27:15,561 INFO L354 Elim1Store]: treesize reduction 14790, result has 2.2 percent of original size [2021-11-03 04:27:15,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 144 case distinctions, treesize of input 1179 treesize of output 534 [2021-11-03 04:27:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:15,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:16,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:16,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:16,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:16,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:16,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:16,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:27:33,519 WARN L207 SmtUtils]: Spent 17.49 s on a formula simplification. DAG size of input: 1969 DAG size of output: 156 [2021-11-03 04:27:33,520 INFO L354 Elim1Store]: treesize reduction 21986, result has 1.8 percent of original size [2021-11-03 04:27:33,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 120 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 308 case distinctions, treesize of input 1192 treesize of output 571 [2021-11-03 04:27:38,657 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 04:27:38,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:27:39,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:27:39,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1162 [2021-11-03 04:27:39,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:27:39,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8746 [2021-11-03 04:28:21,471 WARN L838 $PredicateComparison]: unable to prove that (or |c_ULTIMATE.start_aws_byte_buf_is_valid_#t~short680| (forall ((v_DerPreprocessor_2 (_ BitVec 8)) (v_DerPreprocessor_1 (_ BitVec 8)) (|ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ BitVec 64))) (not (= (_ bv0 64) (let ((.cse1 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv23 64))) (.cse2 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv22 64))) (.cse3 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv21 64))) (.cse4 (bvadd (_ bv20 64) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|)) (.cse5 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv19 64))) (.cse6 (bvadd (_ bv18 64) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|)) (.cse7 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv17 64))) (.cse8 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv16 64)))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.base| (store (let ((.cse10 (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.base|))) (let ((.cse11 (concat (concat (concat (concat (concat (concat (concat (select .cse10 .cse1) (select .cse10 .cse2)) (select .cse10 .cse3)) (select .cse10 .cse4)) (select .cse10 .cse5)) (select .cse10 .cse6)) (select .cse10 .cse7)) (select .cse10 .cse8)))) (store (store (store (store (store (store (store (store (store (let ((.cse9 (concat (concat (concat (concat (concat (concat (concat (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv7 64))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv6 64)))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv5 64)))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv4 64)))) (select .cse10 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv2 64)))) (select .cse10 (bvadd |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset| (_ bv1 64)))) (select .cse10 |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.offset|)))) (store (store (store (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.base|) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| ((_ extract 7 0) .cse9)) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 15 8) .cse9)) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 23 16) .cse9)) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 31 24) .cse9)) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 39 32) .cse9)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv5 64)) ((_ extract 47 40) .cse9)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv6 64)) ((_ extract 55 48) .cse9)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv7 64)) ((_ extract 63 56) .cse9))) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) v_DerPreprocessor_1) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv16 64)) ((_ extract 7 0) .cse11)) (bvadd (_ bv17 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 15 8) .cse11)) (bvadd (_ bv18 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 23 16) .cse11)) (bvadd (_ bv19 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 31 24) .cse11)) (bvadd (_ bv20 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 39 32) .cse11)) (bvadd (_ bv21 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) ((_ extract 47 40) .cse11)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv22 64)) ((_ extract 55 48) .cse11)) (bvadd |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset| (_ bv23 64)) ((_ extract 63 56) .cse11)))) (bvadd (_ bv24 64) |ULTIMATE.start_aws_byte_buf_advance_harness_~#output~0.offset|) v_DerPreprocessor_2)) |c_ULTIMATE.start_aws_byte_buf_advance_harness_~#buf~3.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4)) (select .cse0 .cse5)) (select .cse0 .cse6)) (select .cse0 .cse7)) (select .cse0 .cse8)))))))) is different from false