./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_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_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/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_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/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_7f97cf33-8bab-4629-86bb-6e82937a91f4/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 c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:55:41,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:55:41,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:55:41,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:55:41,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:55:41,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:55:41,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:55:41,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:55:41,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:55:41,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:55:41,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:55:41,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:55:41,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:55:41,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:55:41,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:55:41,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:55:41,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:55:41,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:55:41,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:55:41,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:55:41,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:55:41,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:55:41,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:55:41,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:55:41,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:55:41,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:55:41,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:55:41,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:55:41,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:55:41,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:55:41,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:55:41,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:55:41,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:55:41,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:55:41,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:55:41,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:55:41,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:55:41,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:55:41,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:55:41,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:55:41,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:55:41,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:55:41,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:55:41,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:55:41,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:55:41,303 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:55:41,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:55:41,304 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:55:41,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:55:41,305 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:55:41,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:55:41,306 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:55:41,306 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:55:41,306 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:55:41,307 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:55:41,308 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:55:41,308 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:55:41,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:55:41,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:55:41,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:55:41,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:55:41,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:55:41,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:55:41,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:55:41,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:55:41,312 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:55:41,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:55:41,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:55:41,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:55:41,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:55:41,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:55:41,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:55:41,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:55:41,314 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:55:41,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:55:41,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:55:41,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:55:41,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:55:41,316 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 [2021-11-03 04:55:41,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:55:41,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:55:41,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:55:41,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:55:41,786 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:55:41,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-03 04:55:41,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/b9bd6f35c/bd7cb5fcfe424645acbdc6f2820aebe6/FLAG64889602e [2021-11-03 04:55:43,027 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:55:43,028 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-03 04:55:43,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/b9bd6f35c/bd7cb5fcfe424645acbdc6f2820aebe6/FLAG64889602e [2021-11-03 04:55:43,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/b9bd6f35c/bd7cb5fcfe424645acbdc6f2820aebe6 [2021-11-03 04:55:43,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:55:43,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:55:43,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:55:43,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:55:43,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:55:43,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:55:43" (1/1) ... [2021-11-03 04:55:43,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305adcfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:43, skipping insertion in model container [2021-11-03 04:55:43,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:55:43" (1/1) ... [2021-11-03 04:55:43,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:55:43,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:55:43,833 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-03 04:55:43,840 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-03 04:55:43,865 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:55:43,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:55:45,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,114 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:45,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:55:45,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:55:45,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:55:45,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:55:45,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:55:45,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:55:45,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:55:45,714 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:55:45,715 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:55:45,715 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:55:46,048 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:55:46,067 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:55:46,075 INFO L168 Benchmark]: Toolchain (without parser) took 2781.39 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.9 MB in the beginning and 84.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:55:46,075 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:55:46,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2778.70 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.7 MB in the beginning and 84.3 MB in the end (delta: -17.6 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:55:46,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2778.70 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.7 MB in the beginning and 84.3 MB in the end (delta: -17.6 MB). Peak memory consumption was 32.3 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/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_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/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_7f97cf33-8bab-4629-86bb-6e82937a91f4/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 c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:55:48,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:55:48,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:55:48,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:55:48,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:55:48,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:55:48,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:55:48,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:55:48,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:55:48,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:55:48,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:55:48,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:55:48,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:55:48,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:55:48,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:55:48,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:55:48,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:55:48,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:55:48,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:55:48,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:55:48,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:55:48,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:55:48,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:55:48,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:55:48,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:55:48,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:55:48,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:55:48,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:55:48,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:55:48,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:55:48,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:55:48,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:55:48,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:55:48,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:55:48,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:55:48,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:55:48,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:55:48,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:55:48,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:55:48,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:55:48,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:55:48,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:55:48,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:55:48,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:55:48,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:55:48,923 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:55:48,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:55:48,924 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:55:48,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:55:48,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:55:48,926 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:55:48,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:55:48,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:55:48,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:55:48,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:55:48,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:55:48,930 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:55:48,930 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:55:48,931 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:55:48,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:55:48,931 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:55:48,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:55:48,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:55:48,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:55:48,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:55:48,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:55:48,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:55:48,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:55:48,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:55:48,934 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:55:48,934 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:55:48,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:55:48,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:55:48,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:55:48,935 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 [2021-11-03 04:55:49,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:55:49,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:55:49,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:55:49,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:55:49,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:55:49,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-03 04:55:49,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/837f1db22/5ffa78f1b3c5494e83ab50d694ff0ace/FLAG6eceecbaa [2021-11-03 04:55:50,736 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:55:50,737 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-03 04:55:50,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/837f1db22/5ffa78f1b3c5494e83ab50d694ff0ace/FLAG6eceecbaa [2021-11-03 04:55:51,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/data/837f1db22/5ffa78f1b3c5494e83ab50d694ff0ace [2021-11-03 04:55:51,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:55:51,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:55:51,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:55:51,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:55:51,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:55:51,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:55:51" (1/1) ... [2021-11-03 04:55:51,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79daecae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:51, skipping insertion in model container [2021-11-03 04:55:51,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:55:51" (1/1) ... [2021-11-03 04:55:51,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:55:51,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:55:51,673 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-03 04:55:51,682 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-03 04:55:51,716 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:55:51,725 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:55:53,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:53,826 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:55:53,827 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:55:53,829 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:55:53,830 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:55:53,832 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:55:53,833 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:55:53,834 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:55:53,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:55:53,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:55:53,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:55:54,076 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:55:54,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:55:54,400 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:55:54,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:55:54,488 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-03 04:55:54,489 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-03 04:55:54,491 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:55:54,492 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:55:54,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:55:54,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:55:54,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:55:54,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:55:54,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:55:54,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:55:54,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:55:54,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:55:54,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:55:54,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:55:54,682 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:55:54,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:54,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:55:54,930 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:55:54,961 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-03 04:55:54,962 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_7f97cf33-8bab-4629-86bb-6e82937a91f4/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-03 04:55:54,964 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:55:54,965 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:55:55,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:55:55,126 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:55:55,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:55:55,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:55:55,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:55:55,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:55:55,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:55:55,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:55:55,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:55:55,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:55:55,209 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:55:55,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:55:55,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:55:55,795 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:55:55,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55 WrapperNode [2021-11-03 04:55:55,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:55:55,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:55:55,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:55:55,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:55:55,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:55,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:55:56,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:55:56,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:55:56,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:55:56,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:55:56,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:55:56,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:55:56,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:55:56,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (1/1) ... [2021-11-03 04:55:56,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:55:56,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:55:56,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:55:56,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:55:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 04:55:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:55:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:55:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:55:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:55:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:55:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:55:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:55:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:55:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:55:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:55:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:55:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:56:13,537 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:56:13,537 INFO L299 CfgBuilder]: Removed 70 assume(true) statements. [2021-11-03 04:56:13,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:13 BoogieIcfgContainer [2021-11-03 04:56:13,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:56:13,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:56:13,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:56:13,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:56:13,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:55:51" (1/3) ... [2021-11-03 04:56:13,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cedf1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:13, skipping insertion in model container [2021-11-03 04:56:13,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:55:55" (2/3) ... [2021-11-03 04:56:13,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cedf1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:13, skipping insertion in model container [2021-11-03 04:56:13,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:13" (3/3) ... [2021-11-03 04:56:13,549 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_harness.i [2021-11-03 04:56:13,556 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:56:13,556 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 04:56:13,612 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:56:13,619 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:56:13,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 04:56:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 70 states have (on average 1.5) internal successors, (105), 75 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:56:13,645 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:13,646 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] [2021-11-03 04:56:13,647 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:56:13,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:13,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1732530516, now seen corresponding path program 1 times [2021-11-03 04:56:13,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:13,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665222187] [2021-11-03 04:56:13,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:13,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:13,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:13,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:13,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:56:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:18,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:56:18,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:19,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:19,214 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:19,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665222187] [2021-11-03 04:56:19,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665222187] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:19,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:19,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:56:19,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509422684] [2021-11-03 04:56:19,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:56:19,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:19,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:56:19,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:56:19,243 INFO L87 Difference]: Start difference. First operand has 76 states, 70 states have (on average 1.5) internal successors, (105), 75 states have internal predecessors, (105), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:19,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:19,269 INFO L93 Difference]: Finished difference Result 149 states and 206 transitions. [2021-11-03 04:56:19,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:56:19,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2021-11-03 04:56:19,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:19,282 INFO L225 Difference]: With dead ends: 149 [2021-11-03 04:56:19,282 INFO L226 Difference]: Without dead ends: 70 [2021-11-03 04:56:19,286 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:56:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-03 04:56:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-03 04:56:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.2461538461538462) 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 04:56:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-03 04:56:19,328 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 27 [2021-11-03 04:56:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:19,329 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-03 04:56:19,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-03 04:56:19,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:56:19,331 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:19,331 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] [2021-11-03 04:56:19,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:19,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:19,546 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:56:19,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1816035494, now seen corresponding path program 1 times [2021-11-03 04:56:19,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:19,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456233368] [2021-11-03 04:56:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:19,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:19,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:19,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:19,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:56:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:24,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:56:24,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:25,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:25,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:25,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456233368] [2021-11-03 04:56:25,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456233368] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:25,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:25,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-11-03 04:56:25,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091691293] [2021-11-03 04:56:25,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:56:25,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:56:25,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:56:25,922 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 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 04:56:28,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:28,473 INFO L93 Difference]: Finished difference Result 491 states and 571 transitions. [2021-11-03 04:56:28,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-03 04:56:28,474 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 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 27 [2021-11-03 04:56:28,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:28,481 INFO L225 Difference]: With dead ends: 491 [2021-11-03 04:56:28,481 INFO L226 Difference]: Without dead ends: 460 [2021-11-03 04:56:28,483 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2021-11-03 04:56:28,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-11-03 04:56:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 150. [2021-11-03 04:56:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.193103448275862) internal successors, (173), 149 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 173 transitions. [2021-11-03 04:56:28,521 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 173 transitions. Word has length 27 [2021-11-03 04:56:28,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:28,521 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 173 transitions. [2021-11-03 04:56:28,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 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 04:56:28,522 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 173 transitions. [2021-11-03 04:56:28,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:56:28,524 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:28,524 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:28,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:28,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:28,734 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:56:28,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash 515997540, now seen corresponding path program 1 times [2021-11-03 04:56:28,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:28,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906565294] [2021-11-03 04:56:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:28,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:28,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:28,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:28,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:56:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:33,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:56:33,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:33,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:33,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:33,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906565294] [2021-11-03 04:56:33,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906565294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:33,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:33,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:56:33,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288259515] [2021-11-03 04:56:33,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:56:33,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:56:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:56:33,804 INFO L87 Difference]: Start difference. First operand 150 states and 173 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:34,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:34,253 INFO L93 Difference]: Finished difference Result 192 states and 226 transitions. [2021-11-03 04:56:34,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:56:34,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-03 04:56:34,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:34,256 INFO L225 Difference]: With dead ends: 192 [2021-11-03 04:56:34,256 INFO L226 Difference]: Without dead ends: 167 [2021-11-03 04:56:34,257 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 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 04:56:34,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-03 04:56:34,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 131. [2021-11-03 04:56:34,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 130 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:34,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2021-11-03 04:56:34,273 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 28 [2021-11-03 04:56:34,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:34,274 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2021-11-03 04:56:34,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2021-11-03 04:56:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 04:56:34,277 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:34,277 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] [2021-11-03 04:56:34,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:34,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:34,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:56:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:34,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1532986451, now seen corresponding path program 1 times [2021-11-03 04:56:34,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:34,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044542188] [2021-11-03 04:56:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:34,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:34,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:34,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:34,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:56:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:39,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 04:56:39,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:40,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:41,082 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:41,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044542188] [2021-11-03 04:56:41,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044542188] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:41,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:41,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 8] imperfect sequences [] total 19 [2021-11-03 04:56:41,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29078871] [2021-11-03 04:56:41,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 04:56:41,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:41,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 04:56:41,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:56:41,086 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:46,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:46,094 INFO L93 Difference]: Finished difference Result 347 states and 398 transitions. [2021-11-03 04:56:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-03 04:56:46,095 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-03 04:56:46,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:46,097 INFO L225 Difference]: With dead ends: 347 [2021-11-03 04:56:46,097 INFO L226 Difference]: Without dead ends: 325 [2021-11-03 04:56:46,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=589, Invalid=1763, Unknown=0, NotChecked=0, Total=2352 [2021-11-03 04:56:46,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-03 04:56:46,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 149. [2021-11-03 04:56:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 144 states have (on average 1.2083333333333333) internal successors, (174), 148 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:46,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2021-11-03 04:56:46,116 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 33 [2021-11-03 04:56:46,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:46,117 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2021-11-03 04:56:46,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2021-11-03 04:56:46,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 04:56:46,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:46,119 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] [2021-11-03 04:56:46,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:56:46,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:46,342 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:56:46,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash -358833571, now seen corresponding path program 1 times [2021-11-03 04:56:46,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:46,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124431556] [2021-11-03 04:56:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:46,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:46,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:46,348 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:46,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:56:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:50,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1743 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-03 04:56:50,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:52,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:52,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:53,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:53,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124431556] [2021-11-03 04:56:53,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124431556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:53,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:53,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 17 [2021-11-03 04:56:53,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445747359] [2021-11-03 04:56:53,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-03 04:56:53,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:53,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-03 04:56:53,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-11-03 04:56:53,084 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:56,625 INFO L93 Difference]: Finished difference Result 500 states and 578 transitions. [2021-11-03 04:56:56,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-03 04:56:56,626 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-03 04:56:56,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:56,630 INFO L225 Difference]: With dead ends: 500 [2021-11-03 04:56:56,631 INFO L226 Difference]: Without dead ends: 485 [2021-11-03 04:56:56,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2021-11-03 04:56:56,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2021-11-03 04:56:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 174. [2021-11-03 04:56:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.1893491124260356) internal successors, (201), 173 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 201 transitions. [2021-11-03 04:56:56,653 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 201 transitions. Word has length 33 [2021-11-03 04:56:56,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:56,654 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 201 transitions. [2021-11-03 04:56:56,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:56:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 201 transitions. [2021-11-03 04:56:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:56:56,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:56,657 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:56,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:56,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:56,882 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:56:56,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:56,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1155426652, now seen corresponding path program 1 times [2021-11-03 04:56:56,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:56,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484347630] [2021-11-03 04:56:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:56,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:56,888 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:56,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:57:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:01,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:57:01,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:01,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:01,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:01,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:01,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484347630] [2021-11-03 04:57:01,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484347630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:01,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:01,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:57:01,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424006100] [2021-11-03 04:57:01,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:57:01,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:57:01,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:57:01,900 INFO L87 Difference]: Start difference. First operand 174 states and 201 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:01,989 INFO L93 Difference]: Finished difference Result 225 states and 261 transitions. [2021-11-03 04:57:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:57:01,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:57:01,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:01,992 INFO L225 Difference]: With dead ends: 225 [2021-11-03 04:57:01,992 INFO L226 Difference]: Without dead ends: 213 [2021-11-03 04:57:01,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:57:01,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-03 04:57:02,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 182. [2021-11-03 04:57:02,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.1807909604519775) internal successors, (209), 181 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:02,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 209 transitions. [2021-11-03 04:57:02,014 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 209 transitions. Word has length 34 [2021-11-03 04:57:02,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:02,017 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 209 transitions. [2021-11-03 04:57:02,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:02,017 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 209 transitions. [2021-11-03 04:57:02,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:57:02,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:02,030 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:57:02,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:02,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:57:02,249 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:57:02,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash 346080026, now seen corresponding path program 1 times [2021-11-03 04:57:02,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:57:02,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764076081] [2021-11-03 04:57:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:02,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:57:02,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:57:02,255 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:57:02,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:57:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:06,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-03 04:57:06,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:07,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:09,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:09,126 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:09,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764076081] [2021-11-03 04:57:09,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764076081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:09,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:09,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 12] imperfect sequences [] total 22 [2021-11-03 04:57:09,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347510901] [2021-11-03 04:57:09,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-03 04:57:09,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:09,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-03 04:57:09,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:57:09,129 INFO L87 Difference]: Start difference. First operand 182 states and 209 transitions. Second operand has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:15,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:15,097 INFO L93 Difference]: Finished difference Result 447 states and 493 transitions. [2021-11-03 04:57:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-03 04:57:15,098 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:57:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:15,102 INFO L225 Difference]: With dead ends: 447 [2021-11-03 04:57:15,102 INFO L226 Difference]: Without dead ends: 432 [2021-11-03 04:57:15,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=856, Invalid=2566, Unknown=0, NotChecked=0, Total=3422 [2021-11-03 04:57:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-03 04:57:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 195. [2021-11-03 04:57:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.168421052631579) internal successors, (222), 194 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2021-11-03 04:57:15,122 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 34 [2021-11-03 04:57:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:15,122 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2021-11-03 04:57:15,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2021-11-03 04:57:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:57:15,124 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:15,124 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:57:15,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:15,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:57:15,349 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:57:15,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1814533261, now seen corresponding path program 1 times [2021-11-03 04:57:15,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:57:15,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569823978] [2021-11-03 04:57:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:15,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:57:15,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:57:15,358 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:57:15,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:57:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:19,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 04:57:19,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:20,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:21,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:21,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569823978] [2021-11-03 04:57:21,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569823978] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:21,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:21,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 17 [2021-11-03 04:57:21,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158754578] [2021-11-03 04:57:21,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-03 04:57:21,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:21,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-03 04:57:21,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-11-03 04:57:21,504 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:23,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:23,996 INFO L93 Difference]: Finished difference Result 329 states and 376 transitions. [2021-11-03 04:57:23,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-03 04:57:23,996 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:57:23,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:23,999 INFO L225 Difference]: With dead ends: 329 [2021-11-03 04:57:23,999 INFO L226 Difference]: Without dead ends: 302 [2021-11-03 04:57:24,000 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2021-11-03 04:57:24,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-11-03 04:57:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 170. [2021-11-03 04:57:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.1757575757575758) internal successors, (194), 169 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 194 transitions. [2021-11-03 04:57:24,013 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 194 transitions. Word has length 34 [2021-11-03 04:57:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:24,014 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 194 transitions. [2021-11-03 04:57:24,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 194 transitions. [2021-11-03 04:57:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:57:24,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:24,016 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:57:24,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:24,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:57:24,234 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:57:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:24,234 INFO L85 PathProgramCache]: Analyzing trace with hash -849869248, now seen corresponding path program 1 times [2021-11-03 04:57:24,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:57:24,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324060459] [2021-11-03 04:57:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:24,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:57:24,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:57:24,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:57:24,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:57:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:28,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-03 04:57:28,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:29,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:30,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:30,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324060459] [2021-11-03 04:57:30,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324060459] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:30,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:30,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 10] imperfect sequences [] total 23 [2021-11-03 04:57:30,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23903969] [2021-11-03 04:57:30,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-03 04:57:30,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:30,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-03 04:57:30,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:57:30,705 INFO L87 Difference]: Start difference. First operand 170 states and 194 transitions. Second operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 23 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 04:57:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:37,395 INFO L93 Difference]: Finished difference Result 353 states and 394 transitions. [2021-11-03 04:57:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-03 04:57:37,396 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 23 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 36 [2021-11-03 04:57:37,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:37,398 INFO L225 Difference]: With dead ends: 353 [2021-11-03 04:57:37,398 INFO L226 Difference]: Without dead ends: 297 [2021-11-03 04:57:37,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=565, Invalid=1985, Unknown=0, NotChecked=0, Total=2550 [2021-11-03 04:57:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-03 04:57:37,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 176. [2021-11-03 04:57:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 171 states have (on average 1.1754385964912282) internal successors, (201), 175 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 201 transitions. [2021-11-03 04:57:37,414 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 201 transitions. Word has length 36 [2021-11-03 04:57:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:37,415 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 201 transitions. [2021-11-03 04:57:37,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 23 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 04:57:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 201 transitions. [2021-11-03 04:57:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:57:37,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:37,417 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:57:37,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:37,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:57:37,642 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:57:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:37,642 INFO L85 PathProgramCache]: Analyzing trace with hash 214022886, now seen corresponding path program 1 times [2021-11-03 04:57:37,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:57:37,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793779312] [2021-11-03 04:57:37,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:37,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:57:37,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:57:37,648 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:57:37,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:57:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:42,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 04:57:42,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:43,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:43,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:44,032 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:44,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793779312] [2021-11-03 04:57:44,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793779312] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:44,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:44,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 9] imperfect sequences [] total 21 [2021-11-03 04:57:44,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602696198] [2021-11-03 04:57:44,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-03 04:57:44,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:44,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-03 04:57:44,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2021-11-03 04:57:44,035 INFO L87 Difference]: Start difference. First operand 176 states and 201 transitions. Second operand has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:49,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:49,669 INFO L93 Difference]: Finished difference Result 301 states and 335 transitions. [2021-11-03 04:57:49,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-03 04:57:49,670 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 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 04:57:49,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:49,672 INFO L225 Difference]: With dead ends: 301 [2021-11-03 04:57:49,672 INFO L226 Difference]: Without dead ends: 277 [2021-11-03 04:57:49,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=596, Invalid=1954, Unknown=0, NotChecked=0, Total=2550 [2021-11-03 04:57:49,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-03 04:57:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 154. [2021-11-03 04:57:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.174496644295302) internal successors, (175), 153 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 175 transitions. [2021-11-03 04:57:49,685 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 175 transitions. Word has length 36 [2021-11-03 04:57:49,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:49,686 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 175 transitions. [2021-11-03 04:57:49,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:49,686 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 175 transitions. [2021-11-03 04:57:49,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:57:49,687 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:49,687 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:57:49,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:49,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:57:49,902 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:57:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:49,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2113766872, now seen corresponding path program 1 times [2021-11-03 04:57:49,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:57:49,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709767939] [2021-11-03 04:57:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:49,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:57:49,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:57:49,908 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:57:49,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:57:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:54,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-03 04:57:54,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:56,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:58,309 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 04:57:58,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:58,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709767939] [2021-11-03 04:57:58,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709767939] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:58,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:58,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 17] imperfect sequences [] total 33 [2021-11-03 04:57:58,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019284345] [2021-11-03 04:57:58,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-03 04:57:58,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:58,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-03 04:57:58,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=871, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 04:57:58,313 INFO L87 Difference]: Start difference. First operand 154 states and 175 transitions. Second operand has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 33 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:11,568 INFO L93 Difference]: Finished difference Result 449 states and 494 transitions. [2021-11-03 04:58:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-03 04:58:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 33 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-03 04:58:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:11,572 INFO L225 Difference]: With dead ends: 449 [2021-11-03 04:58:11,572 INFO L226 Difference]: Without dead ends: 422 [2021-11-03 04:58:11,576 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1333 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1177, Invalid=5303, Unknown=0, NotChecked=0, Total=6480 [2021-11-03 04:58:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-03 04:58:11,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 210. [2021-11-03 04:58:11,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.175609756097561) internal successors, (241), 209 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 241 transitions. [2021-11-03 04:58:11,594 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 241 transitions. Word has length 36 [2021-11-03 04:58:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:11,595 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 241 transitions. [2021-11-03 04:58:11,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.9090909090909092) internal successors, (63), 33 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 241 transitions. [2021-11-03 04:58:11,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:58:11,596 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:11,596 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:11,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:11,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:11,810 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:58:11,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:11,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1837401266, now seen corresponding path program 1 times [2021-11-03 04:58:11,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:11,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879383914] [2021-11-03 04:58:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:11,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:11,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:11,816 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:11,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:58:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:16,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-03 04:58:16,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:18,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:20,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879383914] [2021-11-03 04:58:20,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879383914] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:20,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:20,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 19] imperfect sequences [] total 32 [2021-11-03 04:58:20,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32983807] [2021-11-03 04:58:20,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-03 04:58:20,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:20,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-03 04:58:20,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2021-11-03 04:58:20,596 INFO L87 Difference]: Start difference. First operand 210 states and 241 transitions. Second operand has 32 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:28,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:28,329 INFO L93 Difference]: Finished difference Result 436 states and 475 transitions. [2021-11-03 04:58:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-03 04:58:28,330 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 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 04:58:28,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:28,333 INFO L225 Difference]: With dead ends: 436 [2021-11-03 04:58:28,333 INFO L226 Difference]: Without dead ends: 421 [2021-11-03 04:58:28,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=672, Invalid=2868, Unknown=0, NotChecked=0, Total=3540 [2021-11-03 04:58:28,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-03 04:58:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 210. [2021-11-03 04:58:28,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.175609756097561) internal successors, (241), 209 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 241 transitions. [2021-11-03 04:58:28,353 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 241 transitions. Word has length 36 [2021-11-03 04:58:28,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:28,353 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 241 transitions. [2021-11-03 04:58:28,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:28,354 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 241 transitions. [2021-11-03 04:58:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:58:28,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:28,355 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 04:58:28,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 04:58:28,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:28,570 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:58:28,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:28,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1155735666, now seen corresponding path program 1 times [2021-11-03 04:58:28,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:28,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496100114] [2021-11-03 04:58:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:28,574 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:28,575 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:28,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:58:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:33,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-03 04:58:33,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:35,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:37,300 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:37,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496100114] [2021-11-03 04:58:37,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496100114] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:37,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:37,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 17] imperfect sequences [] total 33 [2021-11-03 04:58:37,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592355987] [2021-11-03 04:58:37,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-03 04:58:37,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:37,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-03 04:58:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=871, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 04:58:37,302 INFO L87 Difference]: Start difference. First operand 210 states and 241 transitions. Second operand has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:47,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:47,493 INFO L93 Difference]: Finished difference Result 289 states and 317 transitions. [2021-11-03 04:58:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-03 04:58:47,494 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 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 04:58:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:47,495 INFO L225 Difference]: With dead ends: 289 [2021-11-03 04:58:47,496 INFO L226 Difference]: Without dead ends: 269 [2021-11-03 04:58:47,498 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=931, Invalid=4181, Unknown=0, NotChecked=0, Total=5112 [2021-11-03 04:58:47,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-03 04:58:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 205. [2021-11-03 04:58:47,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.17) internal successors, (234), 204 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 234 transitions. [2021-11-03 04:58:47,514 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 234 transitions. Word has length 37 [2021-11-03 04:58:47,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:47,515 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 234 transitions. [2021-11-03 04:58:47,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 234 transitions. [2021-11-03 04:58:47,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:58:47,516 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:47,516 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 04:58:47,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:47,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:47,742 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:58:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:47,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1071392324, now seen corresponding path program 1 times [2021-11-03 04:58:47,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:47,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741290980] [2021-11-03 04:58:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:47,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:47,750 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:47,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:58:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:52,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-03 04:58:52,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:54,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:56,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:56,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:56,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741290980] [2021-11-03 04:58:56,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741290980] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:56,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:56,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 19] imperfect sequences [] total 32 [2021-11-03 04:58:56,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141187181] [2021-11-03 04:58:56,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-03 04:58:56,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:56,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-03 04:58:56,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2021-11-03 04:58:56,591 INFO L87 Difference]: Start difference. First operand 205 states and 234 transitions. Second operand has 32 states, 32 states have (on average 2.0) internal successors, (64), 32 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:59:03,463 INFO L93 Difference]: Finished difference Result 268 states and 296 transitions. [2021-11-03 04:59:03,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-03 04:59:03,464 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.0) internal successors, (64), 32 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 04:59:03,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:59:03,465 INFO L225 Difference]: With dead ends: 268 [2021-11-03 04:59:03,465 INFO L226 Difference]: Without dead ends: 252 [2021-11-03 04:59:03,467 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=632, Invalid=2560, Unknown=0, NotChecked=0, Total=3192 [2021-11-03 04:59:03,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-03 04:59:03,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 192. [2021-11-03 04:59:03,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 187 states have (on average 1.1764705882352942) internal successors, (220), 191 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:03,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 220 transitions. [2021-11-03 04:59:03,480 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 220 transitions. Word has length 37 [2021-11-03 04:59:03,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:59:03,481 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 220 transitions. [2021-11-03 04:59:03,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.0) internal successors, (64), 32 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 220 transitions. [2021-11-03 04:59:03,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:59:03,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:59:03,482 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 04:59:03,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:59:03,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:03,706 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:59:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash -761417087, now seen corresponding path program 1 times [2021-11-03 04:59:03,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:03,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566792055] [2021-11-03 04:59:03,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:03,712 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:03,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:03,714 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:03,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 04:59:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:59:08,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:59:08,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:59:09,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:09,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:59:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:09,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:59:09,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566792055] [2021-11-03 04:59:09,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566792055] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:59:09,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:59:09,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 5] imperfect sequences [] total 13 [2021-11-03 04:59:09,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736538948] [2021-11-03 04:59:09,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:59:09,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:59:09,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:59:09,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:59:09,906 INFO L87 Difference]: Start difference. First operand 192 states and 220 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:59:11,721 INFO L93 Difference]: Finished difference Result 320 states and 356 transitions. [2021-11-03 04:59:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 04:59:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-03 04:59:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:59:11,723 INFO L225 Difference]: With dead ends: 320 [2021-11-03 04:59:11,724 INFO L226 Difference]: Without dead ends: 269 [2021-11-03 04:59:11,725 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2021-11-03 04:59:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-03 04:59:11,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 201. [2021-11-03 04:59:11,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.1581632653061225) internal successors, (227), 200 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:11,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2021-11-03 04:59:11,750 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 39 [2021-11-03 04:59:11,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:59:11,751 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2021-11-03 04:59:11,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2021-11-03 04:59:11,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:59:11,752 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:59:11,753 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 04:59:11,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-03 04:59:11,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:11,966 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:59:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:11,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1013590275, now seen corresponding path program 1 times [2021-11-03 04:59:11,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:11,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879634762] [2021-11-03 04:59:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:11,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:11,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:11,971 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:11,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 04:59:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:59:17,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:59:17,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:59:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:17,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:59:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:18,019 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:59:18,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879634762] [2021-11-03 04:59:18,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879634762] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:59:18,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:59:18,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2021-11-03 04:59:18,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519523552] [2021-11-03 04:59:18,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:59:18,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:59:18,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:59:18,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:59:18,021 INFO L87 Difference]: Start difference. First operand 201 states and 227 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:59:19,129 INFO L93 Difference]: Finished difference Result 264 states and 292 transitions. [2021-11-03 04:59:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 04:59:19,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-03 04:59:19,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:59:19,132 INFO L225 Difference]: With dead ends: 264 [2021-11-03 04:59:19,132 INFO L226 Difference]: Without dead ends: 262 [2021-11-03 04:59:19,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:59:19,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-03 04:59:19,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 201. [2021-11-03 04:59:19,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.153061224489796) internal successors, (226), 200 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 226 transitions. [2021-11-03 04:59:19,142 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 226 transitions. Word has length 39 [2021-11-03 04:59:19,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:59:19,142 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 226 transitions. [2021-11-03 04:59:19,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:19,143 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 226 transitions. [2021-11-03 04:59:19,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:59:19,143 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:59:19,144 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 04:59:19,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-03 04:59:19,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:19,344 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:59:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:19,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1059303570, now seen corresponding path program 1 times [2021-11-03 04:59:19,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:19,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264285113] [2021-11-03 04:59:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:19,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:19,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:19,350 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:19,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f97cf33-8bab-4629-86bb-6e82937a91f4/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-03 05:02:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:34,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-03 05:02:34,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:34,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:02:34,450 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-03 05:02:34,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-11-03 05:02:34,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:34,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2021-11-03 05:02:39,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:39,654 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-03 05:02:39,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 138 [2021-11-03 05:02:40,120 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-03 05:02:40,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 38 [2021-11-03 05:02:40,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:02:40,925 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-03 05:03:31,538 WARN L207 SmtUtils]: Spent 50.60 s on a formula simplification. DAG size of input: 210 DAG size of output: 72 [2021-11-03 05:03:31,540 INFO L354 Elim1Store]: treesize reduction 1407, result has 11.6 percent of original size [2021-11-03 05:03:31,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 38 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 8 case distinctions, treesize of input 200 treesize of output 330