./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:13:45,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:13:45,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:13:45,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:13:45,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:13:45,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:13:45,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:13:45,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:13:45,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:13:45,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:13:45,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:13:45,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:13:45,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:13:45,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:13:45,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:13:45,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:13:45,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:13:45,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:13:45,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:13:45,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:13:45,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:13:45,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:13:45,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:13:45,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:13:45,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:13:45,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:13:45,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:13:45,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:13:45,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:13:45,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:13:45,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:13:45,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:13:45,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:13:45,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:13:45,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:13:45,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:13:45,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:13:45,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:13:45,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:13:45,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:13:45,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:13:45,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:13:45,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:13:45,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:13:45,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:13:45,833 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:13:45,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:13:45,834 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:13:45,834 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:13:45,834 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:13:45,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:13:45,842 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:13:45,843 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:13:45,843 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:13:45,844 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:13:45,844 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:13:45,844 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:13:45,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:13:45,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:13:45,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:13:45,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:13:45,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:13:45,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:13:45,847 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:13:45,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:13:45,847 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:13:45,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:13:45,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:13:45,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:13:45,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:45,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:13:45,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:13:45,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:13:45,851 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:13:45,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:13:45,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:13:45,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:13:45,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:13:45,853 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd [2021-11-03 04:13:46,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:13:46,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:13:46,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:13:46,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:13:46,210 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:13:46,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-03 04:13:46,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/514aba89c/930d9b2e40ce4c75ac4f908e59a83b95/FLAG8a3834fa3 [2021-11-03 04:13:47,282 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:13:47,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-03 04:13:47,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/514aba89c/930d9b2e40ce4c75ac4f908e59a83b95/FLAG8a3834fa3 [2021-11-03 04:13:47,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/514aba89c/930d9b2e40ce4c75ac4f908e59a83b95 [2021-11-03 04:13:47,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:13:47,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:13:47,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:47,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:13:47,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:13:47,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:47" (1/1) ... [2021-11-03 04:13:47,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bd82da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:47, skipping insertion in model container [2021-11-03 04:13:47,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:47" (1/1) ... [2021-11-03 04:13:47,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:13:47,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:48,241 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-03 04:13:48,252 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-03 04:13:48,281 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:48,287 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:49,451 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:49,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:50,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:50,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:50,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:50,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:50,052 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:50,053 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:50,055 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:50,056 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:50,056 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:50,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:50,297 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:50,318 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:13:50,324 INFO L168 Benchmark]: Toolchain (without parser) took 2608.25 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 60.8 MB in the beginning and 82.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:50,325 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:13:50,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2605.56 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 60.5 MB in the beginning and 82.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:50,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2605.56 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 60.5 MB in the beginning and 82.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:13:53,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:13:53,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:13:53,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:13:53,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:13:53,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:13:53,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:13:53,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:13:53,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:13:53,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:13:53,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:13:53,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:13:53,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:13:53,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:13:53,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:13:53,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:13:53,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:13:53,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:13:53,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:13:53,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:13:53,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:13:53,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:13:53,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:13:53,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:13:53,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:13:53,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:13:53,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:13:53,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:13:53,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:13:53,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:13:53,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:13:53,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:13:53,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:13:53,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:13:53,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:13:53,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:13:53,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:13:53,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:13:53,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:13:53,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:13:53,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:13:53,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:13:53,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:13:53,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:13:53,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:13:53,288 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:13:53,288 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:13:53,289 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:13:53,289 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:13:53,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:13:53,289 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:13:53,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:13:53,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:13:53,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:13:53,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:13:53,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:13:53,294 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:13:53,294 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:13:53,294 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:13:53,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:13:53,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:13:53,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:13:53,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:13:53,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:13:53,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:13:53,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:53,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:13:53,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:13:53,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:13:53,297 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:13:53,298 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:13:53,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:13:53,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:13:53,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:13:53,299 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd [2021-11-03 04:13:53,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:13:53,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:13:53,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:13:53,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:13:53,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:13:53,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-03 04:13:53,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/4af5e15b1/996441e0454949fea431b0536e6a6178/FLAGcbdd55183 [2021-11-03 04:13:55,065 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:13:55,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-03 04:13:55,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/4af5e15b1/996441e0454949fea431b0536e6a6178/FLAGcbdd55183 [2021-11-03 04:13:55,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/data/4af5e15b1/996441e0454949fea431b0536e6a6178 [2021-11-03 04:13:55,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:13:55,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:13:55,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:55,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:13:55,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:13:55,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:55" (1/1) ... [2021-11-03 04:13:55,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0900a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:55, skipping insertion in model container [2021-11-03 04:13:55,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:55" (1/1) ... [2021-11-03 04:13:55,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:13:55,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:55,980 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-03 04:13:55,995 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-03 04:13:56,037 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:56,060 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:57,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,560 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:57,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,176 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:58,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:58,179 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:58,181 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:58,183 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:58,184 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:58,185 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:58,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:58,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:58,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:58,441 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:58,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:58,842 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:13:58,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:58,928 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-03 04:13:58,929 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-03 04:13:58,931 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:58,932 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:58,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:58,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:59,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:59,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:59,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:59,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:59,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:59,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:59,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:59,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:59,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:59,096 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:59,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:59,284 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:13:59,299 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-03 04:13:59,300 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_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-03 04:13:59,302 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:59,303 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:59,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,396 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:59,397 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:59,398 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:59,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:59,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:59,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:59,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:59,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:59,402 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:59,402 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:59,447 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:59,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,526 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:59,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:14:00,205 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:14:00,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00 WrapperNode [2021-11-03 04:14:00,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:14:00,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:14:00,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:14:00,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:14:00,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:14:00,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:14:00,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:14:00,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:14:00,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:14:00,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:14:00,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:14:00,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:14:00,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (1/1) ... [2021-11-03 04:14:00,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:14:00,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:14:00,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:14:00,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:14:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:14:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:14:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:14:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:14:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:14:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:14:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:14:00,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:14:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:14:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:14:00,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:14:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:14:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:14:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:14:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:14:17,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:14:17,176 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-03 04:14:17,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:14:17 BoogieIcfgContainer [2021-11-03 04:14:17,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:14:17,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:14:17,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:14:17,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:14:17,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:13:55" (1/3) ... [2021-11-03 04:14:17,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9119f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:14:17, skipping insertion in model container [2021-11-03 04:14:17,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:14:00" (2/3) ... [2021-11-03 04:14:17,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9119f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:14:17, skipping insertion in model container [2021-11-03 04:14:17,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:14:17" (3/3) ... [2021-11-03 04:14:17,190 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reset_harness.i [2021-11-03 04:14:17,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:14:17,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:14:17,257 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:14:17,263 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 04:14:17,264 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:14:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 109 states have internal predecessors, (150), 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 04:14:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:14:17,292 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:17,293 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] [2021-11-03 04:14:17,294 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:14:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:17,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1062443937, now seen corresponding path program 1 times [2021-11-03 04:14:17,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:17,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126267965] [2021-11-03 04:14:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:17,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:17,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:17,330 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:17,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:14:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:22,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:14:22,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:22,350 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 04:14:22,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:22,434 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 04:14:22,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:22,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126267965] [2021-11-03 04:14:22,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126267965] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:22,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:22,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:14:22,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092770541] [2021-11-03 04:14:22,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:14:22,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:22,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:14:22,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:14:22,464 INFO L87 Difference]: Start difference. First operand has 110 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 109 states have internal predecessors, (150), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 04:14:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:22,493 INFO L93 Difference]: Finished difference Result 216 states and 295 transitions. [2021-11-03 04:14:22,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:14:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2021-11-03 04:14:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:22,506 INFO L225 Difference]: With dead ends: 216 [2021-11-03 04:14:22,506 INFO L226 Difference]: Without dead ends: 103 [2021-11-03 04:14:22,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 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 04:14:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-03 04:14:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-03 04:14:22,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 102 states have internal predecessors, (128), 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 04:14:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 128 transitions. [2021-11-03 04:14:22,557 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 128 transitions. Word has length 22 [2021-11-03 04:14:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:22,558 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 128 transitions. [2021-11-03 04:14:22,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 04:14:22,559 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 128 transitions. [2021-11-03 04:14:22,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:14:22,560 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:22,560 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] [2021-11-03 04:14:22,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:22,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:22,787 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:14:22,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:22,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1987497567, now seen corresponding path program 1 times [2021-11-03 04:14:22,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:22,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846636901] [2021-11-03 04:14:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:22,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:22,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:22,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:22,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:14:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:27,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:14:27,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:27,812 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 04:14:27,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:28,025 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 04:14:28,026 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:28,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846636901] [2021-11-03 04:14:28,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846636901] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:28,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:28,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:14:28,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10293548] [2021-11-03 04:14:28,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:14:28,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:28,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:14:28,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:14:28,034 INFO L87 Difference]: Start difference. First operand 103 states and 128 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 04:14:28,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:28,351 INFO L93 Difference]: Finished difference Result 180 states and 222 transitions. [2021-11-03 04:14:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:14:28,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-11-03 04:14:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:28,354 INFO L225 Difference]: With dead ends: 180 [2021-11-03 04:14:28,354 INFO L226 Difference]: Without dead ends: 103 [2021-11-03 04:14:28,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 04:14:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-03 04:14:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-03 04:14:28,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.309278350515464) internal successors, (127), 102 states have internal predecessors, (127), 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 04:14:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2021-11-03 04:14:28,368 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 22 [2021-11-03 04:14:28,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:28,369 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2021-11-03 04:14:28,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 04:14:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2021-11-03 04:14:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:14:28,370 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:28,371 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] [2021-11-03 04:14:28,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:28,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:28,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:14:28,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:28,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1026351090, now seen corresponding path program 1 times [2021-11-03 04:14:28,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:28,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672736441] [2021-11-03 04:14:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:28,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:28,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:28,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:28,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:14:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:33,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:14:33,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:33,810 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 04:14:33,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:33,948 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 04:14:33,949 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:33,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672736441] [2021-11-03 04:14:33,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672736441] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:33,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:33,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:14:33,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492583225] [2021-11-03 04:14:33,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:14:33,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:33,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:14:33,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:14:33,958 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 04:14:34,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:34,272 INFO L93 Difference]: Finished difference Result 211 states and 264 transitions. [2021-11-03 04:14:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:14:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-11-03 04:14:34,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:34,275 INFO L225 Difference]: With dead ends: 211 [2021-11-03 04:14:34,275 INFO L226 Difference]: Without dead ends: 133 [2021-11-03 04:14:34,276 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 04:14:34,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-03 04:14:34,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 109. [2021-11-03 04:14:34,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 108 states have internal predecessors, (133), 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 04:14:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 133 transitions. [2021-11-03 04:14:34,290 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 133 transitions. Word has length 28 [2021-11-03 04:14:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:34,291 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 133 transitions. [2021-11-03 04:14:34,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 04:14:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 133 transitions. [2021-11-03 04:14:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:14:34,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:34,294 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] [2021-11-03 04:14:34,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:34,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:34,499 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:14:34,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash -439545076, now seen corresponding path program 1 times [2021-11-03 04:14:34,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:34,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475227665] [2021-11-03 04:14:34,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:34,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:34,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:34,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:34,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:14:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:39,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:14:39,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:39,750 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 04:14:40,110 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 04:14:40,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:40,387 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 04:14:40,705 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 04:14:40,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:40,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475227665] [2021-11-03 04:14:40,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475227665] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:40,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:40,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 04:14:40,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338356396] [2021-11-03 04:14:40,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:14:40,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:40,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:14:40,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:14:40,708 INFO L87 Difference]: Start difference. First operand 109 states and 133 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 04:14:47,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:47,563 INFO L93 Difference]: Finished difference Result 214 states and 262 transitions. [2021-11-03 04:14:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 04:14:47,564 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 28 [2021-11-03 04:14:47,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:47,566 INFO L225 Difference]: With dead ends: 214 [2021-11-03 04:14:47,566 INFO L226 Difference]: Without dead ends: 132 [2021-11-03 04:14:47,567 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:14:47,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-03 04:14:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2021-11-03 04:14:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 106 states have internal predecessors, (130), 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 04:14:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2021-11-03 04:14:47,579 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 28 [2021-11-03 04:14:47,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:47,580 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2021-11-03 04:14:47,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 04:14:47,580 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2021-11-03 04:14:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 04:14:47,582 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:47,582 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] [2021-11-03 04:14:47,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:14:47,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:47,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:14:47,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:47,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1785426666, now seen corresponding path program 1 times [2021-11-03 04:14:47,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:47,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391729517] [2021-11-03 04:14:47,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:47,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:47,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:47,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:47,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:14:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:52,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:14:52,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:53,050 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:14:53,050 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 04:14:53,217 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 04:14:53,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:53,753 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 04:14:53,754 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:53,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391729517] [2021-11-03 04:14:53,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391729517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:53,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:53,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:14:53,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109168286] [2021-11-03 04:14:53,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:14:53,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:53,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:14:53,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:14:53,757 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 04:15:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:09,785 INFO L93 Difference]: Finished difference Result 308 states and 373 transitions. [2021-11-03 04:15:09,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:15:09,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 32 [2021-11-03 04:15:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:09,790 INFO L225 Difference]: With dead ends: 308 [2021-11-03 04:15:09,790 INFO L226 Difference]: Without dead ends: 221 [2021-11-03 04:15:09,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 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 04:15:09,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-03 04:15:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 126. [2021-11-03 04:15:09,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 120 states have (on average 1.2833333333333334) internal successors, (154), 125 states have internal predecessors, (154), 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 04:15:09,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 154 transitions. [2021-11-03 04:15:09,806 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 154 transitions. Word has length 32 [2021-11-03 04:15:09,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:09,807 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 154 transitions. [2021-11-03 04:15:09,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 04:15:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions. [2021-11-03 04:15:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 04:15:09,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:09,809 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] [2021-11-03 04:15:09,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:10,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:10,023 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:15:10,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1498423380, now seen corresponding path program 1 times [2021-11-03 04:15:10,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:10,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146019632] [2021-11-03 04:15:10,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:10,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:10,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:10,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:10,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:15:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:14,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:15:14,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:15,321 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:15:15,321 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 04:15:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:15,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:16,503 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 04:15:16,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:16,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146019632] [2021-11-03 04:15:16,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146019632] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:16,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:16,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 04:15:16,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14514351] [2021-11-03 04:15:16,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:15:16,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:16,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:15:16,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:15:16,506 INFO L87 Difference]: Start difference. First operand 126 states and 154 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 04:15:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:41,211 INFO L93 Difference]: Finished difference Result 383 states and 439 transitions. [2021-11-03 04:15:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:15:41,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 32 [2021-11-03 04:15:41,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:41,216 INFO L225 Difference]: With dead ends: 383 [2021-11-03 04:15:41,216 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 04:15:41,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:15:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 04:15:41,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 120. [2021-11-03 04:15:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 114 states have (on average 1.219298245614035) internal successors, (139), 119 states have internal predecessors, (139), 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 04:15:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2021-11-03 04:15:41,229 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 32 [2021-11-03 04:15:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:41,230 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-11-03 04:15:41,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 04:15:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2021-11-03 04:15:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:15:41,232 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:41,232 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] [2021-11-03 04:15:41,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:41,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:41,455 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:15:41,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:41,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1166089283, now seen corresponding path program 1 times [2021-11-03 04:15:41,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:41,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428487450] [2021-11-03 04:15:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:41,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:41,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:41,461 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:41,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:17:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:14,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-03 04:17:14,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:15,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:17:15,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:17:15,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:17:15,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:17:15,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:17:15,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:17:15,655 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:17:15,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:17:15,772 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:17:15,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 118 treesize of output 96 [2021-11-03 04:17:15,961 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 04:17:15,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:17,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:17,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428487450] [2021-11-03 04:17:17,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428487450] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:17,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:17,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 11 [2021-11-03 04:17:17,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94029880] [2021-11-03 04:17:17,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:17:17,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:17:17,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:17:17,281 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 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 04:17:42,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:42,774 INFO L93 Difference]: Finished difference Result 415 states and 474 transitions. [2021-11-03 04:17:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 04:17:42,777 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 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 34 [2021-11-03 04:17:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:42,780 INFO L225 Difference]: With dead ends: 415 [2021-11-03 04:17:42,780 INFO L226 Difference]: Without dead ends: 342 [2021-11-03 04:17:42,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=236, Invalid=576, Unknown=0, NotChecked=0, Total=812 [2021-11-03 04:17:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-03 04:17:42,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 193. [2021-11-03 04:17:42,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 187 states have (on average 1.2299465240641712) internal successors, (230), 192 states have internal predecessors, (230), 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 04:17:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 230 transitions. [2021-11-03 04:17:42,797 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 230 transitions. Word has length 34 [2021-11-03 04:17:42,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:42,798 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 230 transitions. [2021-11-03 04:17:42,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 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 04:17:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 230 transitions. [2021-11-03 04:17:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:17:42,800 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:42,801 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] [2021-11-03 04:17:43,010 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2021-11-03 04:17:43,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:43,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:43,034 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:17:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:43,035 INFO L85 PathProgramCache]: Analyzing trace with hash 374795903, now seen corresponding path program 1 times [2021-11-03 04:17:43,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:43,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382286529] [2021-11-03 04:17:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:43,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:43,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:43,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca3f5fd-7de8-4c72-9a2b-bb8cd4886199/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:22:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:06,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-03 04:22:06,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:06,883 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 27 treesize of output 23 [2021-11-03 04:22:06,893 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 13 treesize of output 9 [2021-11-03 04:22:07,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:22:07,558 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:22:07,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 36 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 22 [2021-11-03 04:22:07,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,748 INFO L244 Elim1Store]: Index analysis took 151 ms [2021-11-03 04:22:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:22:07,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:22:07,783 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:22:07,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 36 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 22 [2021-11-03 04:22:08,063 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 04:22:08,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:08,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:22:08,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 545 [2021-11-03 04:22:08,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:22:08,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 872 [2021-11-03 04:23:08,308 WARN L207 SmtUtils]: Spent 32.84 s on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-11-03 04:23:08,310 INFO L354 Elim1Store]: treesize reduction 55, result has 48.1 percent of original size [2021-11-03 04:23:08,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43160126357744 treesize of output 37658273251598