./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_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_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/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_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/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_bdd25006-cd2b-450b-8659-fbc1033e6a10/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 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:24:47,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:24:47,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:24:47,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:24:47,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:24:47,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:24:47,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:24:47,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:24:47,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:24:47,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:24:47,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:24:47,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:24:47,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:24:47,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:24:47,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:24:47,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:24:47,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:24:47,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:24:47,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:24:47,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:24:47,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:24:47,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:24:47,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:24:47,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:24:47,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:24:47,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:24:47,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:24:47,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:24:47,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:24:47,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:24:47,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:24:47,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:24:47,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:24:47,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:24:47,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:24:47,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:24:47,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:24:47,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:24:47,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:24:47,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:24:47,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:24:47,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:24:47,398 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:24:47,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:24:47,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:24:47,400 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:24:47,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:24:47,400 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:24:47,400 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:24:47,401 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:24:47,401 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:24:47,401 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:24:47,407 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:24:47,408 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:24:47,408 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:24:47,408 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:24:47,408 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:24:47,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:24:47,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:24:47,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:24:47,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:24:47,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:24:47,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:24:47,410 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:24:47,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:24:47,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:24:47,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:24:47,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:24:47,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:24:47,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:24:47,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:24:47,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:24:47,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:24:47,413 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:24:47,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:24:47,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:24:47,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:24:47,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:24:47,414 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-03 05:24:47,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:24:47,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:24:47,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:24:47,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:24:47,688 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:24:47,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-03 05:24:47,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/7d317c194/e8766b959973414fa5a4bffb44e8367d/FLAG36eca2925 [2021-11-03 05:24:48,527 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:24:48,528 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-03 05:24:48,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/7d317c194/e8766b959973414fa5a4bffb44e8367d/FLAG36eca2925 [2021-11-03 05:24:49,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/7d317c194/e8766b959973414fa5a4bffb44e8367d [2021-11-03 05:24:49,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:24:49,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:24:49,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:24:49,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:24:49,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:24:49,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:24:49" (1/1) ... [2021-11-03 05:24:49,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a747c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:49, skipping insertion in model container [2021-11-03 05:24:49,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:24:49" (1/1) ... [2021-11-03 05:24:49,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:24:49,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:24:49,540 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-03 05:24:49,549 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-03 05:24:49,571 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:24:49,588 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:24:50,250 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:24:50,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,356 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:50,680 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:24:50,681 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:24:50,682 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:24:50,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:24:50,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:24:50,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:24:50,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:24:50,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:24:50,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:24:50,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:24:50,807 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:24:50,811 INFO L168 Benchmark]: Toolchain (without parser) took 1705.95 ms. Allocated memory is still 113.2 MB. Free memory was 67.2 MB in the beginning and 57.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:24:50,812 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 113.2 MB. Free memory was 91.8 MB in the beginning and 91.8 MB in the end (delta: 72.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:24:50,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1702.34 ms. Allocated memory is still 113.2 MB. Free memory was 67.0 MB in the beginning and 57.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:24:50,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 113.2 MB. Free memory was 91.8 MB in the beginning and 91.8 MB in the end (delta: 72.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1702.34 ms. Allocated memory is still 113.2 MB. Free memory was 67.0 MB in the beginning and 57.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/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_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/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_bdd25006-cd2b-450b-8659-fbc1033e6a10/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 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:24:52,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:24:52,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:24:53,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:24:53,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:24:53,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:24:53,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:24:53,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:24:53,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:24:53,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:24:53,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:24:53,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:24:53,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:24:53,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:24:53,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:24:53,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:24:53,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:24:53,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:24:53,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:24:53,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:24:53,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:24:53,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:24:53,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:24:53,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:24:53,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:24:53,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:24:53,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:24:53,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:24:53,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:24:53,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:24:53,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:24:53,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:24:53,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:24:53,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:24:53,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:24:53,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:24:53,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:24:53,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:24:53,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:24:53,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:24:53,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:24:53,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:24:53,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:24:53,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:24:53,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:24:53,164 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:24:53,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:24:53,164 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:24:53,164 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:24:53,165 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:24:53,165 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:24:53,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:24:53,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:24:53,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:24:53,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:24:53,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:24:53,168 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:24:53,168 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:24:53,168 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:24:53,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:24:53,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:24:53,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:24:53,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:24:53,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:24:53,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:24:53,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:24:53,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:24:53,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:24:53,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:24:53,171 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:24:53,171 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:24:53,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:24:53,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:24:53,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:24:53,172 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-03 05:24:53,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:24:53,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:24:53,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:24:53,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:24:53,596 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:24:53,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-03 05:24:53,659 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/c072ca0f8/1c28cf26f3e642688fce09d02ebda2bd/FLAG7207ad798 [2021-11-03 05:24:54,451 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:24:54,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-03 05:24:54,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/c072ca0f8/1c28cf26f3e642688fce09d02ebda2bd/FLAG7207ad798 [2021-11-03 05:24:55,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/data/c072ca0f8/1c28cf26f3e642688fce09d02ebda2bd [2021-11-03 05:24:55,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:24:55,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:24:55,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:24:55,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:24:55,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:24:55,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:24:55" (1/1) ... [2021-11-03 05:24:55,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53132d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:55, skipping insertion in model container [2021-11-03 05:24:55,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:24:55" (1/1) ... [2021-11-03 05:24:55,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:24:55,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:24:55,443 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-03 05:24:55,450 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-03 05:24:55,475 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:24:55,487 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:24:56,289 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:24:56,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:24:56,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:24:56,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:24:56,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:24:56,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:24:56,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:24:56,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:24:56,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:24:56,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:24:56,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:24:56,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:56,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:24:57,049 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:24:57,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:24:57,132 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-03 05:24:57,133 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-03 05:24:57,135 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:24:57,137 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:24:57,225 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:24:57,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,296 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:24:57,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:24:57,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:24:57,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:24:57,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:24:57,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:24:57,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:24:57,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:24:57,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:24:57,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:24:57,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:24:57,374 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:24:57,400 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-03 05:24:57,401 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_bdd25006-cd2b-450b-8659-fbc1033e6a10/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-03 05:24:57,402 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:24:57,404 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:24:57,481 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:24:57,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:24:57,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:24:57,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:24:57,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:24:57,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:24:57,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:24:57,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:24:57,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:24:57,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:24:57,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:24:57,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:24:57,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:24:58,005 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:24:58,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58 WrapperNode [2021-11-03 05:24:58,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:24:58,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:24:58,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:24:58,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:24:58,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:24:58,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:24:58,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:24:58,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:24:58,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:24:58,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:24:58,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:24:58,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:24:58,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (1/1) ... [2021-11-03 05:24:58,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:24:58,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:24:58,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:24:58,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:24:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:24:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:24:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:24:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:24:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:24:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:24:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:24:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:24:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:24:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:24:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:24:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 05:24:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:24:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:24:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:24:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:25:13,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:25:13,205 INFO L299 CfgBuilder]: Removed 188 assume(true) statements. [2021-11-03 05:25:13,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:25:13 BoogieIcfgContainer [2021-11-03 05:25:13,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:25:13,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:25:13,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:25:13,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:25:13,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:24:55" (1/3) ... [2021-11-03 05:25:13,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9b53ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:25:13, skipping insertion in model container [2021-11-03 05:25:13,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:24:58" (2/3) ... [2021-11-03 05:25:13,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9b53ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:25:13, skipping insertion in model container [2021-11-03 05:25:13,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:25:13" (3/3) ... [2021-11-03 05:25:13,227 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_size_harness.i [2021-11-03 05:25:13,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:25:13,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-03 05:25:13,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:25:13,284 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 05:25:13,284 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-03 05:25:13,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 231 states have (on average 1.4458874458874458) internal successors, (334), 245 states have internal predecessors, (334), 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 05:25:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 05:25:13,311 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:25:13,312 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:25:13,312 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:25:13,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:25:13,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1385932008, now seen corresponding path program 1 times [2021-11-03 05:25:13,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:25:13,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320193942] [2021-11-03 05:25:13,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:25:13,340 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:25:13,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:25:13,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:25:13,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:25:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:25:17,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:25:17,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:25:17,459 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 05:25:17,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:25:17,671 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 05:25:17,672 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:25:17,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320193942] [2021-11-03 05:25:17,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320193942] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:25:17,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:25:17,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:25:17,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624400327] [2021-11-03 05:25:17,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:25:17,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:25:17,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:25:17,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:25:17,707 INFO L87 Difference]: Start difference. First operand has 246 states, 231 states have (on average 1.4458874458874458) internal successors, (334), 245 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:25:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:25:17,761 INFO L93 Difference]: Finished difference Result 486 states and 661 transitions. [2021-11-03 05:25:17,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:25:17,763 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-03 05:25:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:25:17,776 INFO L225 Difference]: With dead ends: 486 [2021-11-03 05:25:17,780 INFO L226 Difference]: Without dead ends: 239 [2021-11-03 05:25:17,785 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:25:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-03 05:25:17,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-03 05:25:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3244444444444445) internal successors, (298), 238 states have internal predecessors, (298), 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 05:25:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 298 transitions. [2021-11-03 05:25:17,838 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 298 transitions. Word has length 40 [2021-11-03 05:25:17,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:25:17,839 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 298 transitions. [2021-11-03 05:25:17,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:25:17,839 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 298 transitions. [2021-11-03 05:25:17,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 05:25:17,843 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:25:17,844 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:25:17,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:25:18,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:25:18,046 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:25:18,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:25:18,047 INFO L85 PathProgramCache]: Analyzing trace with hash 577264856, now seen corresponding path program 1 times [2021-11-03 05:25:18,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:25:18,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461472628] [2021-11-03 05:25:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:25:18,051 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:25:18,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:25:18,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:25:18,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:25:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:25:21,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-03 05:25:21,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:25:23,621 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:25:23,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:25:23,879 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 05:25:23,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:25:25,559 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 05:25:25,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:25:25,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461472628] [2021-11-03 05:25:25,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461472628] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:25:25,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:25:25,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-03 05:25:25,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132527439] [2021-11-03 05:25:25,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 05:25:25,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:25:25,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 05:25:25,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:25:25,564 INFO L87 Difference]: Start difference. First operand 239 states and 298 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 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 05:25:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:25:46,812 INFO L93 Difference]: Finished difference Result 460 states and 576 transitions. [2021-11-03 05:25:46,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 05:25:46,815 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 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 40 [2021-11-03 05:25:46,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:25:46,817 INFO L225 Difference]: With dead ends: 460 [2021-11-03 05:25:46,817 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 05:25:46,819 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2021-11-03 05:25:46,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 05:25:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-03 05:25:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 223 states have (on average 1.3228699551569507) internal successors, (295), 236 states have internal predecessors, (295), 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 05:25:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 295 transitions. [2021-11-03 05:25:46,836 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 295 transitions. Word has length 40 [2021-11-03 05:25:46,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:25:46,836 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 295 transitions. [2021-11-03 05:25:46,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 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 05:25:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 295 transitions. [2021-11-03 05:25:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 05:25:46,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:25:46,839 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:25:46,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:25:47,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:25:47,044 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:25:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:25:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1026524868, now seen corresponding path program 1 times [2021-11-03 05:25:47,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:25:47,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355690898] [2021-11-03 05:25:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:25:47,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:25:47,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:25:47,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:25:47,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:25:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:25:50,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:25:50,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:25:51,038 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 05:25:51,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:25:51,254 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 05:25:51,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:25:51,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355690898] [2021-11-03 05:25:51,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355690898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:25:51,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:25:51,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:25:51,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085199928] [2021-11-03 05:25:51,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:25:51,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:25:51,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:25:51,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:25:51,256 INFO L87 Difference]: Start difference. First operand 237 states and 295 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:25:51,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:25:51,421 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2021-11-03 05:25:51,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:25:51,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-03 05:25:51,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:25:51,425 INFO L225 Difference]: With dead ends: 396 [2021-11-03 05:25:51,425 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 05:25:51,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:25:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 05:25:51,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-03 05:25:51,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 223 states have (on average 1.3139013452914798) internal successors, (293), 236 states have internal predecessors, (293), 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 05:25:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 293 transitions. [2021-11-03 05:25:51,442 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 293 transitions. Word has length 43 [2021-11-03 05:25:51,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:25:51,443 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 293 transitions. [2021-11-03 05:25:51,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:25:51,443 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 293 transitions. [2021-11-03 05:25:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 05:25:51,445 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:25:51,445 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:25:51,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 05:25:51,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:25:51,661 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:25:51,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:25:51,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1627246861, now seen corresponding path program 1 times [2021-11-03 05:25:51,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:25:51,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648845526] [2021-11-03 05:25:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:25:51,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:25:51,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:25:51,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:25:51,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:25:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:25:55,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:25:55,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:25:55,776 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 05:25:55,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:25:56,054 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 05:25:56,055 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:25:56,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648845526] [2021-11-03 05:25:56,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648845526] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:25:56,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:25:56,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 05:25:56,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36555196] [2021-11-03 05:25:56,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:25:56,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:25:56,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:25:56,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:25:56,057 INFO L87 Difference]: Start difference. First operand 237 states and 293 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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 05:25:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:25:57,097 INFO L93 Difference]: Finished difference Result 507 states and 614 transitions. [2021-11-03 05:25:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:25:57,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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 47 [2021-11-03 05:25:57,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:25:57,100 INFO L225 Difference]: With dead ends: 507 [2021-11-03 05:25:57,100 INFO L226 Difference]: Without dead ends: 316 [2021-11-03 05:25:57,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:25:57,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-03 05:25:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 237. [2021-11-03 05:25:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 223 states have (on average 1.304932735426009) internal successors, (291), 236 states have internal predecessors, (291), 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 05:25:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 291 transitions. [2021-11-03 05:25:57,115 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 291 transitions. Word has length 47 [2021-11-03 05:25:57,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:25:57,115 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 291 transitions. [2021-11-03 05:25:57,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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 05:25:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 291 transitions. [2021-11-03 05:25:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 05:25:57,118 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:25:57,118 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:25:57,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:25:57,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:25:57,331 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:25:57,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:25:57,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2031624975, now seen corresponding path program 1 times [2021-11-03 05:25:57,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:25:57,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126686112] [2021-11-03 05:25:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:25:57,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:25:57,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:25:57,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:25:57,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:26:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:01,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1717 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:26:01,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:26:01,856 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 05:26:01,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:26:02,169 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 05:26:02,170 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:26:02,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126686112] [2021-11-03 05:26:02,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126686112] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:02,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:02,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:26:02,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842293168] [2021-11-03 05:26:02,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:26:02,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:26:02,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:26:02,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:26:02,172 INFO L87 Difference]: Start difference. First operand 237 states and 291 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 05:26:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:02,552 INFO L93 Difference]: Finished difference Result 397 states and 483 transitions. [2021-11-03 05:26:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:26:02,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 55 [2021-11-03 05:26:02,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:02,556 INFO L225 Difference]: With dead ends: 397 [2021-11-03 05:26:02,556 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 05:26:02,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:26:02,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 05:26:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-03 05:26:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 223 states have (on average 1.295964125560538) internal successors, (289), 236 states have internal predecessors, (289), 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 05:26:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 289 transitions. [2021-11-03 05:26:02,568 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 289 transitions. Word has length 55 [2021-11-03 05:26:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:02,568 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 289 transitions. [2021-11-03 05:26:02,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 05:26:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 289 transitions. [2021-11-03 05:26:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 05:26:02,570 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:02,570 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:02,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:26:02,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:26:02,792 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:26:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:02,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1483454464, now seen corresponding path program 1 times [2021-11-03 05:26:02,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:26:02,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567059164] [2021-11-03 05:26:02,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:02,796 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:26:02,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:26:02,797 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:26:02,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:26:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:06,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:26:06,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:26:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:26:07,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:26:07,708 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 05:26:07,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:26:07,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567059164] [2021-11-03 05:26:07,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567059164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:07,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:07,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 05:26:07,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007682690] [2021-11-03 05:26:07,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:26:07,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:26:07,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:26:07,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:26:07,711 INFO L87 Difference]: Start difference. First operand 237 states and 289 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 05:26:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:08,559 INFO L93 Difference]: Finished difference Result 413 states and 503 transitions. [2021-11-03 05:26:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 05:26:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 67 [2021-11-03 05:26:08,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:08,562 INFO L225 Difference]: With dead ends: 413 [2021-11-03 05:26:08,562 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 05:26:08,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:26:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 05:26:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2021-11-03 05:26:08,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 223 states have (on average 1.2869955156950672) internal successors, (287), 236 states have internal predecessors, (287), 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 05:26:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 287 transitions. [2021-11-03 05:26:08,574 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 287 transitions. Word has length 67 [2021-11-03 05:26:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:08,575 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 287 transitions. [2021-11-03 05:26:08,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 05:26:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 287 transitions. [2021-11-03 05:26:08,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:26:08,576 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:08,576 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:08,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:26:08,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:26:08,799 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:26:08,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:08,800 INFO L85 PathProgramCache]: Analyzing trace with hash 917596516, now seen corresponding path program 1 times [2021-11-03 05:26:08,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:26:08,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120508358] [2021-11-03 05:26:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:08,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:26:08,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:26:08,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:26:08,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:26:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:13,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:26:13,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:26:13,383 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 05:26:13,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:26:13,580 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 05:26:13,580 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:26:13,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120508358] [2021-11-03 05:26:13,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120508358] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:13,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:13,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:26:13,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523191405] [2021-11-03 05:26:13,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:26:13,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:26:13,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:26:13,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:26:13,584 INFO L87 Difference]: Start difference. First operand 237 states and 287 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:13,836 INFO L93 Difference]: Finished difference Result 552 states and 661 transitions. [2021-11-03 05:26:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:26:13,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 05:26:13,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:13,839 INFO L225 Difference]: With dead ends: 552 [2021-11-03 05:26:13,839 INFO L226 Difference]: Without dead ends: 391 [2021-11-03 05:26:13,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:26:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-11-03 05:26:13,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 249. [2021-11-03 05:26:13,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 248 states have internal predecessors, (303), 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 05:26:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 303 transitions. [2021-11-03 05:26:13,854 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 303 transitions. Word has length 75 [2021-11-03 05:26:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:13,854 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 303 transitions. [2021-11-03 05:26:13,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:26:13,854 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 303 transitions. [2021-11-03 05:26:13,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:26:13,855 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:13,856 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:13,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:26:14,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:26:14,060 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:26:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1427069606, now seen corresponding path program 1 times [2021-11-03 05:26:14,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:26:14,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190092307] [2021-11-03 05:26:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:14,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:26:14,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:26:14,064 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:26:14,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:26:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:18,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:26:18,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:26:19,285 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 05:26:19,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:26:19,804 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 05:26:19,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:26:19,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190092307] [2021-11-03 05:26:19,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190092307] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:19,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:19,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 05:26:19,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572980850] [2021-11-03 05:26:19,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:26:19,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:26:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:26:19,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:26:19,806 INFO L87 Difference]: Start difference. First operand 249 states and 303 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 05:26:38,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:26:38,539 INFO L93 Difference]: Finished difference Result 577 states and 694 transitions. [2021-11-03 05:26:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:26:38,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 05:26:38,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:26:38,544 INFO L225 Difference]: With dead ends: 577 [2021-11-03 05:26:38,544 INFO L226 Difference]: Without dead ends: 401 [2021-11-03 05:26:38,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:26:38,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-03 05:26:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 249. [2021-11-03 05:26:38,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 248 states have internal predecessors, (301), 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 05:26:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 301 transitions. [2021-11-03 05:26:38,559 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 301 transitions. Word has length 75 [2021-11-03 05:26:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:26:38,560 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 301 transitions. [2021-11-03 05:26:38,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 05:26:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 301 transitions. [2021-11-03 05:26:38,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:26:38,561 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:26:38,561 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:26:38,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 05:26:38,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:26:38,783 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:26:38,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:26:38,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1489109220, now seen corresponding path program 1 times [2021-11-03 05:26:38,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:26:38,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014356086] [2021-11-03 05:26:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:26:38,788 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:26:38,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:26:38,788 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:26:38,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:26:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:26:43,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1809 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:26:43,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:26:44,118 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 05:26:44,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:26:44,613 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 05:26:44,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:26:44,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014356086] [2021-11-03 05:26:44,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014356086] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:26:44,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:26:44,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-03 05:26:44,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348274358] [2021-11-03 05:26:44,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:26:44,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:26:44,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:26:44,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:26:44,616 INFO L87 Difference]: Start difference. First operand 249 states and 301 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 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 05:27:06,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:06,767 INFO L93 Difference]: Finished difference Result 579 states and 692 transitions. [2021-11-03 05:27:06,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 05:27:06,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 05:27:06,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:06,774 INFO L225 Difference]: With dead ends: 579 [2021-11-03 05:27:06,774 INFO L226 Difference]: Without dead ends: 403 [2021-11-03 05:27:06,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:27:06,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-03 05:27:06,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 253. [2021-11-03 05:27:06,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 239 states have (on average 1.2677824267782427) internal successors, (303), 252 states have internal predecessors, (303), 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 05:27:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 303 transitions. [2021-11-03 05:27:06,790 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 303 transitions. Word has length 75 [2021-11-03 05:27:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:06,792 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 303 transitions. [2021-11-03 05:27:06,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 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 05:27:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 303 transitions. [2021-11-03 05:27:06,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:27:06,793 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:06,793 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:27:06,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:27:07,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:07,015 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:27:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1355095714, now seen corresponding path program 1 times [2021-11-03 05:27:07,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:07,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456402963] [2021-11-03 05:27:07,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:07,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:07,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:07,022 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:07,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:27:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:11,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:27:11,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:12,447 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 05:27:12,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:12,899 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 05:27:12,899 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:12,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456402963] [2021-11-03 05:27:12,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456402963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:12,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:12,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:27:12,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481141801] [2021-11-03 05:27:12,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:12,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:12,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:12,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:12,901 INFO L87 Difference]: Start difference. First operand 253 states and 303 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:27:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:13,558 INFO L93 Difference]: Finished difference Result 390 states and 462 transitions. [2021-11-03 05:27:13,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:13,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 05:27:13,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:13,561 INFO L225 Difference]: With dead ends: 390 [2021-11-03 05:27:13,562 INFO L226 Difference]: Without dead ends: 253 [2021-11-03 05:27:13,562 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:27:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-03 05:27:13,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2021-11-03 05:27:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 239 states have (on average 1.2594142259414225) internal successors, (301), 252 states have internal predecessors, (301), 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 05:27:13,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 301 transitions. [2021-11-03 05:27:13,577 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 301 transitions. Word has length 75 [2021-11-03 05:27:13,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:13,577 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 301 transitions. [2021-11-03 05:27:13,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:27:13,578 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 301 transitions. [2021-11-03 05:27:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 05:27:13,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:13,579 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:27:13,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-03 05:27:13,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:13,795 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:27:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash 307956460, now seen corresponding path program 1 times [2021-11-03 05:27:13,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:13,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491267033] [2021-11-03 05:27:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:13,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:13,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:13,801 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:13,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:27:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:19,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:27:19,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:19,491 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 05:27:19,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:19,640 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 05:27:19,640 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:19,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491267033] [2021-11-03 05:27:19,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491267033] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:19,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:19,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:27:19,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829954323] [2021-11-03 05:27:19,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:27:19,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:27:19,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:27:19,642 INFO L87 Difference]: Start difference. First operand 253 states and 301 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 05:27:20,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:20,175 INFO L93 Difference]: Finished difference Result 491 states and 590 transitions. [2021-11-03 05:27:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:20,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 91 [2021-11-03 05:27:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:20,179 INFO L225 Difference]: With dead ends: 491 [2021-11-03 05:27:20,179 INFO L226 Difference]: Without dead ends: 283 [2021-11-03 05:27:20,180 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:20,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-03 05:27:20,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 265. [2021-11-03 05:27:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 251 states have (on average 1.247011952191235) internal successors, (313), 264 states have internal predecessors, (313), 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 05:27:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 313 transitions. [2021-11-03 05:27:20,193 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 313 transitions. Word has length 91 [2021-11-03 05:27:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:20,194 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 313 transitions. [2021-11-03 05:27:20,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 05:27:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 313 transitions. [2021-11-03 05:27:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 05:27:20,195 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:20,195 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:27:20,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:27:20,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:20,407 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-03 05:27:20,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1467050902, now seen corresponding path program 1 times [2021-11-03 05:27:20,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:20,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83232503] [2021-11-03 05:27:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:20,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:20,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:20,413 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:20,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd25006-cd2b-450b-8659-fbc1033e6a10/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:27:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:26,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-03 05:27:26,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:30,468 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 05:27:30,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 624 treesize of output 604 [2021-11-03 05:27:33,821 INFO L354 Elim1Store]: treesize reduction 560, result has 54.6 percent of original size [2021-11-03 05:27:33,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 598 treesize of output 886 [2021-11-03 05:27:33,876 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 05:27:33,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1702 treesize of output 1682 [2021-11-03 05:28:54,073 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 05:28:54,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:29:12,386 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-03 05:29:12,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 723 treesize of output 723 [2021-11-03 05:29:12,705 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-03 05:29:12,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 719 treesize of output 719 [2021-11-03 05:31:05,633 WARN L207 SmtUtils]: Spent 1.73 m on a formula simplification. DAG size of input: 1178 DAG size of output: 750 [2021-11-03 05:31:05,642 INFO L354 Elim1Store]: treesize reduction 1688, result has 56.6 percent of original size [2021-11-03 05:31:05,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 799 treesize of output 2423