./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_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_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/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_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/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_a6273998-18d5-421c-b4b2-952931b6dec8/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 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:59,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:59,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:59,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:59,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:59,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:59,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:59,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:59,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:59,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:59,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:59,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:59,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:59,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:59,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:59,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:59,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:59,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:59,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:59,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:59,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:59,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:59,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:59,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:59,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:59,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:59,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:59,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:59,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:59,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:59,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:59,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:59,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:59,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:59,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:59,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:59,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:59,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:59,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:59,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:59,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:59,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:46:59,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:59,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:59,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:59,241 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:59,242 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:59,242 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:59,242 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:46:59,242 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:59,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:59,249 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:46:59,250 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:46:59,251 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:59,251 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:46:59,251 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:46:59,251 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:46:59,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:59,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:46:59,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:59,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:59,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:59,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:59,254 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:59,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:59,254 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:59,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:59,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:59,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:59,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:59,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:59,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:59,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:59,257 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:46:59,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:46:59,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:59,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:59,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:59,259 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_a6273998-18d5-421c-b4b2-952931b6dec8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 [2021-11-03 03:46:59,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:59,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:59,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:59,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:59,559 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:59,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-03 03:46:59,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/1a2fb65b0/01a6e3a99474467eb8b4939abfa6cb96/FLAG89e410f0c [2021-11-03 03:47:00,430 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:47:00,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-03 03:47:00,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/1a2fb65b0/01a6e3a99474467eb8b4939abfa6cb96/FLAG89e410f0c [2021-11-03 03:47:00,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/1a2fb65b0/01a6e3a99474467eb8b4939abfa6cb96 [2021-11-03 03:47:00,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:47:00,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:47:00,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:00,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:47:00,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:47:00,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202d43c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00, skipping insertion in model container [2021-11-03 03:47:00,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:47:00,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:47:00,985 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-03 03:47:00,993 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-03 03:47:01,010 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:01,014 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:01,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,620 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:01,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:01,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:01,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:01,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:01,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:01,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:01,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:01,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:01,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:01,852 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:47:01,858 INFO L168 Benchmark]: Toolchain (without parser) took 1314.18 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 52.1 MB in the beginning and 65.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:01,859 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 88.1 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:47:01,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1307.38 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 52.1 MB in the beginning and 65.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:01,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 88.1 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1307.38 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 52.1 MB in the beginning and 65.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 11.2 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_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/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_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/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_a6273998-18d5-421c-b4b2-952931b6dec8/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 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:47:03,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:47:03,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:47:03,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:47:03,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:47:03,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:47:03,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:47:03,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:47:03,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:47:03,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:47:03,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:47:03,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:47:03,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:47:03,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:47:03,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:47:03,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:47:03,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:47:04,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:47:04,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:47:04,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:47:04,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:47:04,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:47:04,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:47:04,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:47:04,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:47:04,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:47:04,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:47:04,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:47:04,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:47:04,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:47:04,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:47:04,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:47:04,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:47:04,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:47:04,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:47:04,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:47:04,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:47:04,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:47:04,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:47:04,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:47:04,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:47:04,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:47:04,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:47:04,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:47:04,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:47:04,092 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:47:04,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:47:04,093 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:47:04,093 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:47:04,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:47:04,093 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:47:04,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:47:04,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:47:04,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:47:04,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:47:04,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:47:04,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:47:04,097 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:47:04,097 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:47:04,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:47:04,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:47:04,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:47:04,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:47:04,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:47:04,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:47:04,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:47:04,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:47:04,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:47:04,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:47:04,099 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:47:04,099 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:47:04,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:47:04,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:47:04,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:47:04,100 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_a6273998-18d5-421c-b4b2-952931b6dec8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 [2021-11-03 03:47:04,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:47:04,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:47:04,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:47:04,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:47:04,516 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:47:04,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-03 03:47:04,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/8c55ec583/6d07820990fc43f18acdd2af31148331/FLAG9c9241003 [2021-11-03 03:47:05,457 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:47:05,457 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-03 03:47:05,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/8c55ec583/6d07820990fc43f18acdd2af31148331/FLAG9c9241003 [2021-11-03 03:47:05,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/data/8c55ec583/6d07820990fc43f18acdd2af31148331 [2021-11-03 03:47:05,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:47:05,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:47:05,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:05,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:47:05,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:47:05,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:05" (1/1) ... [2021-11-03 03:47:05,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41fe922e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:05, skipping insertion in model container [2021-11-03 03:47:05,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:05" (1/1) ... [2021-11-03 03:47:05,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:47:05,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:47:05,996 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-03 03:47:06,001 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-03 03:47:06,017 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:06,021 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:06,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,638 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:06,828 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:06,829 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:06,830 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:06,832 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:06,833 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:06,834 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:06,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:06,838 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:06,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:06,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:06,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:06,961 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:47:07,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:47:07,007 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-03 03:47:07,008 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-03 03:47:07,009 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:07,010 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:07,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:07,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:07,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:07,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:07,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:07,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:07,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:07,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:07,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:07,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:07,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:07,182 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:47:07,205 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-03 03:47:07,211 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_a6273998-18d5-421c-b4b2-952931b6dec8/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-03 03:47:07,218 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:07,219 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:07,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:07,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:07,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:07,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:07,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:07,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:07,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:07,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:07,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:07,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:07,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:07,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:07,656 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:47:07,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07 WrapperNode [2021-11-03 03:47:07,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:07,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:07,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:47:07,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:47:07,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:07,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:47:07,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:47:07,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:47:07,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:47:07,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:47:07,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:47:07,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:47:07,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (1/1) ... [2021-11-03 03:47:07,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:47:07,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:47:07,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:47:07,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:47:08,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:47:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:47:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:47:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:47:08,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:47:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:47:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:47:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:47:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:47:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:47:10,865 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:47:10,866 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-11-03 03:47:10,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:10 BoogieIcfgContainer [2021-11-03 03:47:10,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:47:10,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:47:10,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:47:10,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:47:10,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:47:05" (1/3) ... [2021-11-03 03:47:10,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d7a1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:10, skipping insertion in model container [2021-11-03 03:47:10,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:07" (2/3) ... [2021-11-03 03:47:10,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d7a1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:10, skipping insertion in model container [2021-11-03 03:47:10,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:10" (3/3) ... [2021-11-03 03:47:10,877 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_using_uint64_harness.i [2021-11-03 03:47:10,892 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:47:10,915 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-03 03:47:10,960 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:47:10,966 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:47:10,966 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-03 03:47:10,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:10,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 03:47:10,986 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:10,986 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] [2021-11-03 03:47:10,987 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:10,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash 546734931, now seen corresponding path program 1 times [2021-11-03 03:47:11,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:11,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559175451] [2021-11-03 03:47:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:11,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:11,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:11,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:11,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:47:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:11,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:47:11,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:11,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:11,552 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:11,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559175451] [2021-11-03 03:47:11,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559175451] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:11,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:11,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:47:11,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401331197] [2021-11-03 03:47:11,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:47:11,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:11,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:47:11,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:47:11,575 INFO L87 Difference]: Start difference. First operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:11,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:11,593 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2021-11-03 03:47:11,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:47:11,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-11-03 03:47:11,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:11,602 INFO L225 Difference]: With dead ends: 111 [2021-11-03 03:47:11,603 INFO L226 Difference]: Without dead ends: 51 [2021-11-03 03:47:11,605 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:47:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-03 03:47:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-03 03:47:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 50 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2021-11-03 03:47:11,637 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 31 [2021-11-03 03:47:11,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:11,637 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2021-11-03 03:47:11,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2021-11-03 03:47:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 03:47:11,639 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:11,639 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] [2021-11-03 03:47:11,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:11,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:11,855 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:11,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:11,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2045186899, now seen corresponding path program 1 times [2021-11-03 03:47:11,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:11,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724175331] [2021-11-03 03:47:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:11,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:11,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:11,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:11,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:47:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:12,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:47:12,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:12,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:13,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:13,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724175331] [2021-11-03 03:47:13,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724175331] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:13,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:13,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 03:47:13,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167178795] [2021-11-03 03:47:13,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:47:13,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:13,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:47:13,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:47:13,142 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:13,711 INFO L93 Difference]: Finished difference Result 139 states and 167 transitions. [2021-11-03 03:47:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:47:13,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-03 03:47:13,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:13,716 INFO L225 Difference]: With dead ends: 139 [2021-11-03 03:47:13,716 INFO L226 Difference]: Without dead ends: 101 [2021-11-03 03:47:13,717 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:47:13,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-03 03:47:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 68. [2021-11-03 03:47:13,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 67 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-11-03 03:47:13,727 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 31 [2021-11-03 03:47:13,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:13,727 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-11-03 03:47:13,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-11-03 03:47:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 03:47:13,729 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:13,729 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] [2021-11-03 03:47:13,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:13,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:13,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:13,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1717651489, now seen corresponding path program 1 times [2021-11-03 03:47:13,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:13,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165503066] [2021-11-03 03:47:13,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:13,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:13,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:13,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:13,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:47:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:14,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 03:47:14,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:14,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:15,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:15,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165503066] [2021-11-03 03:47:15,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165503066] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:15,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:15,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2021-11-03 03:47:15,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785004639] [2021-11-03 03:47:15,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 03:47:15,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:15,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 03:47:15,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:47:15,069 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:21,136 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2021-11-03 03:47:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:47:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 31 [2021-11-03 03:47:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:21,138 INFO L225 Difference]: With dead ends: 121 [2021-11-03 03:47:21,139 INFO L226 Difference]: Without dead ends: 97 [2021-11-03 03:47:21,139 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-11-03 03:47:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-03 03:47:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 70. [2021-11-03 03:47:21,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 67 states have (on average 1.208955223880597) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-03 03:47:21,158 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 31 [2021-11-03 03:47:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:21,160 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-03 03:47:21,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:21,160 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-03 03:47:21,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 03:47:21,165 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:21,165 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] [2021-11-03 03:47:21,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:21,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:21,366 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:21,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash 57355873, now seen corresponding path program 1 times [2021-11-03 03:47:21,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:21,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093848425] [2021-11-03 03:47:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:21,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:21,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:21,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:21,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:47:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:21,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:47:21,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:22,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:22,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:22,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093848425] [2021-11-03 03:47:22,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093848425] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:22,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:22,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 03:47:22,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832395580] [2021-11-03 03:47:22,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:47:22,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:22,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:47:22,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:47:22,362 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:22,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:22,465 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2021-11-03 03:47:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:47:22,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 31 [2021-11-03 03:47:22,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:22,472 INFO L225 Difference]: With dead ends: 75 [2021-11-03 03:47:22,473 INFO L226 Difference]: Without dead ends: 73 [2021-11-03 03:47:22,473 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:47:22,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-03 03:47:22,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-11-03 03:47:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.196969696969697) internal successors, (79), 67 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-11-03 03:47:22,486 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 31 [2021-11-03 03:47:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:22,487 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-11-03 03:47:22,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-11-03 03:47:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 03:47:22,489 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:22,489 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 03:47:22,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:22,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:22,704 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1925927232, now seen corresponding path program 1 times [2021-11-03 03:47:22,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:22,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580848479] [2021-11-03 03:47:22,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:22,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:22,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:22,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:22,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:47:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:22,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:47:22,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:23,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:23,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:23,546 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:23,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580848479] [2021-11-03 03:47:23,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580848479] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:23,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:23,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 9 [2021-11-03 03:47:23,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382273521] [2021-11-03 03:47:23,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 03:47:23,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:23,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 03:47:23,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:47:23,549 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:23,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:23,978 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2021-11-03 03:47:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:47:23,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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 36 [2021-11-03 03:47:23,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:23,988 INFO L225 Difference]: With dead ends: 98 [2021-11-03 03:47:23,988 INFO L226 Difference]: Without dead ends: 83 [2021-11-03 03:47:23,989 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-11-03 03:47:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-03 03:47:23,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2021-11-03 03:47:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 74 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2021-11-03 03:47:24,007 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 36 [2021-11-03 03:47:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:24,009 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2021-11-03 03:47:24,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2021-11-03 03:47:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 03:47:24,012 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:24,012 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:24,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:24,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:24,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:24,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:24,231 INFO L85 PathProgramCache]: Analyzing trace with hash 192927141, now seen corresponding path program 1 times [2021-11-03 03:47:24,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:24,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770380197] [2021-11-03 03:47:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:24,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:24,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:24,233 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:24,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:47:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:24,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:47:24,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:25,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:25,427 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:25,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770380197] [2021-11-03 03:47:25,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770380197] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:25,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:25,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 4] imperfect sequences [] total 10 [2021-11-03 03:47:25,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435015074] [2021-11-03 03:47:25,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 03:47:25,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:25,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 03:47:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-03 03:47:25,429 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:36,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:36,698 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2021-11-03 03:47:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 03:47:36,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-03 03:47:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:36,699 INFO L225 Difference]: With dead ends: 118 [2021-11-03 03:47:36,699 INFO L226 Difference]: Without dead ends: 99 [2021-11-03 03:47:36,700 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-03 03:47:36,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-03 03:47:36,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 77. [2021-11-03 03:47:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 76 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:36,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2021-11-03 03:47:36,712 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 37 [2021-11-03 03:47:36,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:36,713 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2021-11-03 03:47:36,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:36,713 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2021-11-03 03:47:36,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 03:47:36,714 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:36,715 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:36,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:36,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:36,928 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:36,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:36,929 INFO L85 PathProgramCache]: Analyzing trace with hash 451092579, now seen corresponding path program 1 times [2021-11-03 03:47:36,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:36,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665831865] [2021-11-03 03:47:36,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:36,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:36,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:36,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:36,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:47:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:37,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 03:47:37,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:37,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:38,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:38,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665831865] [2021-11-03 03:47:38,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665831865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:38,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:38,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 15 [2021-11-03 03:47:38,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158972425] [2021-11-03 03:47:38,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 03:47:38,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:38,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 03:47:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:47:38,330 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:40,278 INFO L93 Difference]: Finished difference Result 227 states and 266 transitions. [2021-11-03 03:47:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-03 03:47:40,279 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 37 [2021-11-03 03:47:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:40,281 INFO L225 Difference]: With dead ends: 227 [2021-11-03 03:47:40,281 INFO L226 Difference]: Without dead ends: 189 [2021-11-03 03:47:40,282 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2021-11-03 03:47:40,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-03 03:47:40,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 104. [2021-11-03 03:47:40,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 1.1568627450980393) internal successors, (118), 103 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:40,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2021-11-03 03:47:40,294 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 37 [2021-11-03 03:47:40,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:40,295 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2021-11-03 03:47:40,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:40,295 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2021-11-03 03:47:40,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 03:47:40,296 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:40,296 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:40,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:40,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:40,512 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:40,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:40,513 INFO L85 PathProgramCache]: Analyzing trace with hash -13077673, now seen corresponding path program 1 times [2021-11-03 03:47:40,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:40,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271183509] [2021-11-03 03:47:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:40,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:40,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:40,514 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:40,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:47:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:40,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:47:40,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:41,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:41,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:41,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:41,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271183509] [2021-11-03 03:47:41,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271183509] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:41,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:41,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 3] imperfect sequences [] total 7 [2021-11-03 03:47:41,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23308569] [2021-11-03 03:47:41,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:47:41,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:41,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:47:41,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:47:41,267 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 03:47:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:41,546 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2021-11-03 03:47:41,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:47:41,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 37 [2021-11-03 03:47:41,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:41,547 INFO L225 Difference]: With dead ends: 130 [2021-11-03 03:47:41,547 INFO L226 Difference]: Without dead ends: 87 [2021-11-03 03:47:41,547 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:47:41,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-03 03:47:41,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-03 03:47:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 86 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2021-11-03 03:47:41,557 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 37 [2021-11-03 03:47:41,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:41,557 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2021-11-03 03:47:41,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 03:47:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2021-11-03 03:47:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 03:47:41,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:41,559 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:41,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:41,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:41,773 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1284407490, now seen corresponding path program 1 times [2021-11-03 03:47:41,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:41,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958770596] [2021-11-03 03:47:41,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:41,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:41,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:41,775 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:41,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:47:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:42,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:47:42,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:42,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:42,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:42,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958770596] [2021-11-03 03:47:42,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958770596] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:42,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:42,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 9 [2021-11-03 03:47:42,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309052274] [2021-11-03 03:47:42,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 03:47:42,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:42,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 03:47:42,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:47:42,679 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:43,040 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2021-11-03 03:47:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:47:43,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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 38 [2021-11-03 03:47:43,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:43,041 INFO L225 Difference]: With dead ends: 95 [2021-11-03 03:47:43,042 INFO L226 Difference]: Without dead ends: 61 [2021-11-03 03:47:43,042 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:47:43,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-03 03:47:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-03 03:47:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 60 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2021-11-03 03:47:43,050 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 38 [2021-11-03 03:47:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:43,050 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2021-11-03 03:47:43,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2021-11-03 03:47:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 03:47:43,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:43,051 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:43,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-03 03:47:43,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:43,266 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:43,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1330474785, now seen corresponding path program 1 times [2021-11-03 03:47:43,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:43,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347599731] [2021-11-03 03:47:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:43,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:43,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:43,268 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:43,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 03:47:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:43,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 03:47:43,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:44,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:45,223 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:45,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347599731] [2021-11-03 03:47:45,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347599731] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:47:45,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [34307021] [2021-11-03 03:47:45,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:45,223 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:47:45,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:47:45,224 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:47:45,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-03 03:47:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:45,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 03:47:45,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:46,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:46,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:47,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [34307021] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:47:47,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174636669] [2021-11-03 03:47:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:47,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:47:47,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:47:47,237 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:47:47,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 03:47:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:47,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 03:47:47,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:48,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:49,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174636669] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:47:49,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:47:49,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10, 10, 10, 11] total 36 [2021-11-03 03:47:49,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630402857] [2021-11-03 03:47:49,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-03 03:47:49,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:49,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-03 03:47:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1051, Unknown=0, NotChecked=0, Total=1260 [2021-11-03 03:47:49,117 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 36 states, 36 states have (on average 2.611111111111111) internal successors, (94), 36 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:52,345 INFO L93 Difference]: Finished difference Result 194 states and 231 transitions. [2021-11-03 03:47:52,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-03 03:47:52,346 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.611111111111111) internal successors, (94), 36 states have internal predecessors, (94), 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 39 [2021-11-03 03:47:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:52,347 INFO L225 Difference]: With dead ends: 194 [2021-11-03 03:47:52,347 INFO L226 Difference]: Without dead ends: 156 [2021-11-03 03:47:52,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=557, Invalid=2095, Unknown=0, NotChecked=0, Total=2652 [2021-11-03 03:47:52,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-03 03:47:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 82. [2021-11-03 03:47:52,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.1875) internal successors, (95), 81 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2021-11-03 03:47:52,357 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 39 [2021-11-03 03:47:52,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:52,357 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2021-11-03 03:47:52,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.611111111111111) internal successors, (94), 36 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:52,358 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2021-11-03 03:47:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 03:47:52,359 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:52,359 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:52,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:52,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:52,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:52,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 03:47:52,965 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:52,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash -649514281, now seen corresponding path program 1 times [2021-11-03 03:47:52,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:52,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572738513] [2021-11-03 03:47:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:52,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:52,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:52,967 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:52,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 03:47:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:47:53,468 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 03:47:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:47:53,733 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-03 03:47:53,748 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 03:47:53,749 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:47:53,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:47:53,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:47:53,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:53,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:53,955 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:53,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:47:54,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:47:54 BoogieIcfgContainer [2021-11-03 03:47:54,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:47:54,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:47:54,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:47:54,053 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:47:54,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:10" (3/4) ... [2021-11-03 03:47:54,056 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 03:47:54,149 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 03:47:54,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:47:54,150 INFO L168 Benchmark]: Toolchain (without parser) took 48563.57 ms. Allocated memory was 54.5 MB in the beginning and 130.0 MB in the end (delta: 75.5 MB). Free memory was 37.2 MB in the beginning and 77.7 MB in the end (delta: -40.6 MB). Peak memory consumption was 89.0 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:54,151 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:47:54,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2068.51 ms. Allocated memory was 54.5 MB in the beginning and 100.7 MB in the end (delta: 46.1 MB). Free memory was 37.0 MB in the beginning and 42.8 MB in the end (delta: -5.8 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:54,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 168.90 ms. Allocated memory is still 100.7 MB. Free memory was 42.8 MB in the beginning and 66.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:54,152 INFO L168 Benchmark]: Boogie Preprocessor took 99.77 ms. Allocated memory is still 100.7 MB. Free memory was 66.0 MB in the beginning and 63.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:54,152 INFO L168 Benchmark]: RCFGBuilder took 2941.55 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 37.3 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:54,152 INFO L168 Benchmark]: TraceAbstraction took 43181.00 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 36.6 MB in the beginning and 26.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:54,153 INFO L168 Benchmark]: Witness Printer took 96.18 ms. Allocated memory is still 130.0 MB. Free memory was 26.6 MB in the beginning and 77.7 MB in the end (delta: -51.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:54,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2068.51 ms. Allocated memory was 54.5 MB in the beginning and 100.7 MB in the end (delta: 46.1 MB). Free memory was 37.0 MB in the beginning and 42.8 MB in the end (delta: -5.8 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 168.90 ms. Allocated memory is still 100.7 MB. Free memory was 42.8 MB in the beginning and 66.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.77 ms. Allocated memory is still 100.7 MB. Free memory was 66.0 MB in the beginning and 63.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2941.55 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 37.3 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43181.00 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 36.6 MB in the beginning and 26.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. * Witness Printer took 96.18 ms. Allocated memory is still 130.0 MB. Free memory was 26.6 MB in the beginning and 77.7 MB in the end (delta: -51.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5937] short d1[160]; [L5938] short d2[160]; [L5939] int c = __VERIFIER_nondet_int(); [L5940] unsigned size = __VERIFIER_nondet_uint(); [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND FALSE !(i < n) [L5876] return s; [L211] COND FALSE !(!cond) [L5883] size_t num_uint64s = n >> 3; [L5884] size_t rem = n & 0x7; [L5886] uint8_t *d = (uint8_t *)dst; [L5890] case 7: [L5892] case 6: [L5894] case 5: [L5896] case 4: [L5898] case 3: [L5900] case 2: [L5902] case 1: [L5903] d[0] = c [L5906] d += rem [L5908] uint64_t compounded = 0; [L5909] COND FALSE !(num_uint64s > 0 && c != 0) [L5921] size_t i = 0; [L5921] COND FALSE !(i < num_uint64s) [L5925] return dst; [L5908] uint64_t compounded = 0; [L5925] return dst; [L223] COND FALSE !(!cond) [L5655-L5658] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L5660] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) [L5664] a[i] [L5664] b[i] [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 42.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 513 SDtfs, 2884 SDslu, 2082 SDs, 0 SdLazy, 1038 SolverSat, 332 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 19.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 892 GetRequests, 732 SyntacticMatches, 2 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 986 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=7, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 254 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 465 NumberOfCodeBlocks, 465 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 828 ConstructedInterpolants, 68 QuantifiedInterpolants, 3622 SizeOfPredicates, 87 NumberOfNonLiveVariables, 1779 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 24 InterpolantComputations, 18 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-03 03:47:54,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6273998-18d5-421c-b4b2-952931b6dec8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE