./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_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_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/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_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/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_6971b57b-1f5b-42d4-a411-1a6133942fbd/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:59:39,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:59:39,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:59:39,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:59:39,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:59:39,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:59:39,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:59:39,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:59:39,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:59:39,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:59:39,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:59:39,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:59:39,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:59:39,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:59:39,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:59:39,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:59:39,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:59:39,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:59:39,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:59:39,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:59:39,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:59:39,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:59:39,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:59:39,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:59:39,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:59:39,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:59:39,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:59:39,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:59:39,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:59:39,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:59:39,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:59:39,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:59:39,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:59:39,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:59:39,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:59:39,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:59:39,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:59:39,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:59:39,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:59:39,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:59:39,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:59:39,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:59:39,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:59:39,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:59:39,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:59:39,215 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:59:39,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:59:39,215 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:59:39,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:59:39,216 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:59:39,216 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:59:39,216 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:59:39,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:59:39,218 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:59:39,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:59:39,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:59:39,218 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:59:39,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:59:39,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:59:39,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:59:39,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:59:39,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:59:39,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:59:39,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:59:39,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:59:39,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:59:39,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:59:39,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:59:39,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:59:39,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:59:39,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:59:39,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:59:39,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:59:39,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:59:39,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:59:39,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:59:39,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:59:39,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:59:39,224 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2021-11-03 04:59:39,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:59:39,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:59:39,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:59:39,590 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:59:39,590 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:59:39,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-03 04:59:39,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/b67d4971b/3bb5e045e371418ea7a2a7e5a0ed2243/FLAGcf1078519 [2021-11-03 04:59:40,596 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:59:40,596 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-03 04:59:40,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/b67d4971b/3bb5e045e371418ea7a2a7e5a0ed2243/FLAGcf1078519 [2021-11-03 04:59:41,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/b67d4971b/3bb5e045e371418ea7a2a7e5a0ed2243 [2021-11-03 04:59:41,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:59:41,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:59:41,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:59:41,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:59:41,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:59:41,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:59:41" (1/1) ... [2021-11-03 04:59:41,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244ca373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:41, skipping insertion in model container [2021-11-03 04:59:41,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:59:41" (1/1) ... [2021-11-03 04:59:41,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:59:41,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:59:41,478 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-03 04:59:41,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-03 04:59:41,510 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:59:41,517 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:59:42,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:42,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:59:42,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:59:42,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:59:42,843 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:59:42,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:59:42,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:59:42,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:59:42,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:59:42,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:59:42,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:59:43,068 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:59:43,083 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:59:43,089 INFO L168 Benchmark]: Toolchain (without parser) took 2052.73 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 65.0 MB in the beginning and 105.3 MB in the end (delta: -40.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:59:43,089 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:59:43,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2050.52 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 64.7 MB in the beginning and 105.3 MB in the end (delta: -40.5 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:59:43,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2050.52 ms. Allocated memory was 94.4 MB in the beginning and 138.4 MB in the end (delta: 44.0 MB). Free memory was 64.7 MB in the beginning and 105.3 MB in the end (delta: -40.5 MB). Peak memory consumption was 36.1 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/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_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/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_6971b57b-1f5b-42d4-a411-1a6133942fbd/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:59:45,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:59:45,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:59:45,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:59:45,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:59:45,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:59:45,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:59:45,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:59:45,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:59:45,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:59:45,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:59:45,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:59:45,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:59:45,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:59:45,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:59:45,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:59:45,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:59:45,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:59:45,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:59:45,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:59:45,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:59:45,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:59:45,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:59:45,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:59:45,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:59:45,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:59:45,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:59:45,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:59:45,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:59:45,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:59:45,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:59:45,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:59:45,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:59:45,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:59:45,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:59:45,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:59:45,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:59:45,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:59:45,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:59:45,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:59:45,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:59:45,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:59:45,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:59:45,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:59:45,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:59:45,326 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:59:45,326 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:59:45,326 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:59:45,327 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:59:45,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:59:45,327 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:59:45,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:59:45,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:59:45,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:59:45,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:59:45,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:59:45,330 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:59:45,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:59:45,331 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:59:45,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:59:45,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:59:45,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:59:45,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:59:45,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:59:45,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:59:45,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:59:45,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:59:45,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:59:45,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:59:45,333 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:59:45,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:59:45,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:59:45,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:59:45,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:59:45,335 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2021-11-03 04:59:45,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:59:45,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:59:45,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:59:45,765 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:59:45,766 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:59:45,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-03 04:59:45,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/e3874691a/30e51dd3fe6c4629918617863b5cccf1/FLAG3d3af7563 [2021-11-03 04:59:46,724 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:59:46,725 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-03 04:59:46,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/e3874691a/30e51dd3fe6c4629918617863b5cccf1/FLAG3d3af7563 [2021-11-03 04:59:47,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/data/e3874691a/30e51dd3fe6c4629918617863b5cccf1 [2021-11-03 04:59:47,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:59:47,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:59:47,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:59:47,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:59:47,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:59:47,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:59:47" (1/1) ... [2021-11-03 04:59:47,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a547c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:47, skipping insertion in model container [2021-11-03 04:59:47,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:59:47" (1/1) ... [2021-11-03 04:59:47,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:59:47,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:59:47,665 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-03 04:59:47,676 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-03 04:59:47,706 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:59:47,711 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:59:48,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:48,992 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:59:48,993 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:59:48,994 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:59:48,995 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:59:48,996 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:59:48,997 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:59:48,997 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:59:48,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:59:48,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:59:48,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:59:49,174 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:59:49,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:59:49,400 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:59:49,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:59:49,467 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-03 04:59:49,471 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-03 04:59:49,473 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:59:49,474 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:59:49,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:59:49,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:59:49,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:59:49,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:59:49,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:59:49,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:59:49,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:59:49,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:59:49,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:59:49,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:59:49,639 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:59:49,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,706 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:59:49,788 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:59:49,813 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-03 04:59:49,814 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_6971b57b-1f5b-42d4-a411-1a6133942fbd/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-03 04:59:49,815 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:59:49,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:59:49,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:59:49,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:59:49,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:59:49,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:59:49,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:59:49,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:59:49,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:59:49,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:59:49,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:59:49,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:59:49,917 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:59:49,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:49,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:59:50,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:59:50,248 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:59:50,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50 WrapperNode [2021-11-03 04:59:50,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:59:50,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:59:50,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:59:50,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:59:50,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:50,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:50,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:59:50,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:59:50,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:59:50,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:59:50,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:50,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:51,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:51,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:51,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:51,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:51,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:51,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:59:51,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:59:51,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:59:51,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:59:51,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (1/1) ... [2021-11-03 04:59:51,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:59:51,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:59:51,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:59:51,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:59:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:59:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:59:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:59:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:59:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:59:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:59:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:59:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:59:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:59:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:59:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:59:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:59:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:59:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:59:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:59:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:59:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:00:44,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:00:44,320 INFO L299 CfgBuilder]: Removed 2646 assume(true) statements. [2021-11-03 05:00:44,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:00:44 BoogieIcfgContainer [2021-11-03 05:00:44,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:00:44,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:00:44,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:00:44,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:00:44,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:59:47" (1/3) ... [2021-11-03 05:00:44,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e068b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:00:44, skipping insertion in model container [2021-11-03 05:00:44,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:59:50" (2/3) ... [2021-11-03 05:00:44,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e068b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:00:44, skipping insertion in model container [2021-11-03 05:00:44,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:00:44" (3/3) ... [2021-11-03 05:00:44,334 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2021-11-03 05:00:44,339 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:00:44,340 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-03 05:00:44,399 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:00:44,404 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 05:00:44,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-03 05:00:44,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 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 05:00:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 05:00:44,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:44,485 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 05:00:44,486 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:00:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash 462763660, now seen corresponding path program 1 times [2021-11-03 05:00:44,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:44,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928720053] [2021-11-03 05:00:44,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:44,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:44,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:44,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:44,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:00:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:48,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:00:48,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:48,897 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 05:00:48,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:49,023 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 05:00:49,024 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:49,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928720053] [2021-11-03 05:00:49,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928720053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:49,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:49,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:00:49,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295695617] [2021-11-03 05:00:49,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:00:49,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:49,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:00:49,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:00:49,060 INFO L87 Difference]: Start difference. First operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 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 27.5) internal successors, (55), 2 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 05:00:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:00:49,234 INFO L93 Difference]: Finished difference Result 6676 states and 9247 transitions. [2021-11-03 05:00:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:00:49,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 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 05:00:49,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:00:49,266 INFO L225 Difference]: With dead ends: 6676 [2021-11-03 05:00:49,266 INFO L226 Difference]: Without dead ends: 3336 [2021-11-03 05:00:49,276 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 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 05:00:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-03 05:00:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-03 05:00:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.327485380116959) internal successors, (4313), 3335 states have internal predecessors, (4313), 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 05:00:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4313 transitions. [2021-11-03 05:00:49,435 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4313 transitions. Word has length 55 [2021-11-03 05:00:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:00:49,436 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4313 transitions. [2021-11-03 05:00:49,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 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 05:00:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4313 transitions. [2021-11-03 05:00:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 05:00:49,439 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:00:49,439 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 05:00:49,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:00:49,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:00:49,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:00:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:00:49,665 INFO L85 PathProgramCache]: Analyzing trace with hash -349284918, now seen corresponding path program 1 times [2021-11-03 05:00:49,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:00:49,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308397085] [2021-11-03 05:00:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:00:49,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:00:49,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:00:49,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:00:49,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:00:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:00:53,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 05:00:53,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:00:54,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:00:54,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 59 [2021-11-03 05:00:55,186 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 05:00:55,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:00:57,120 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 05:00:57,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:00:57,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308397085] [2021-11-03 05:00:57,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308397085] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:00:57,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:00:57,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-03 05:00:57,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249367123] [2021-11-03 05:00:57,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 05:00:57,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:00:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 05:00:57,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:00:57,125 INFO L87 Difference]: Start difference. First operand 3336 states and 4313 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:04:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:03,590 INFO L93 Difference]: Finished difference Result 6654 states and 8606 transitions. [2021-11-03 05:04:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:04:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-03 05:04:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:03,611 INFO L225 Difference]: With dead ends: 6654 [2021-11-03 05:04:03,611 INFO L226 Difference]: Without dead ends: 3334 [2021-11-03 05:04:03,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-11-03 05:04:03,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2021-11-03 05:04:03,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3334. [2021-11-03 05:04:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3247 states have (on average 1.3273791191869417) internal successors, (4310), 3333 states have internal predecessors, (4310), 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 05:04:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4310 transitions. [2021-11-03 05:04:03,731 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4310 transitions. Word has length 55 [2021-11-03 05:04:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:03,731 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 4310 transitions. [2021-11-03 05:04:03,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:04:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4310 transitions. [2021-11-03 05:04:03,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 05:04:03,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:03,734 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:04:03,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:03,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:03,956 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:04:03,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1485346398, now seen corresponding path program 1 times [2021-11-03 05:04:03,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:03,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294145608] [2021-11-03 05:04:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:03,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:03,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:03,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:03,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:04:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:07,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:04:07,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:08,385 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 05:04:08,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:08,804 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 05:04:08,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:08,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294145608] [2021-11-03 05:04:08,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294145608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:08,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:08,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:04:08,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762766905] [2021-11-03 05:04:08,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:04:08,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:08,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:04:08,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:04:08,807 INFO L87 Difference]: Start difference. First operand 3334 states and 4310 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 05:04:11,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:11,556 INFO L93 Difference]: Finished difference Result 6590 states and 8518 transitions. [2021-11-03 05:04:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:04:11,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 05:04:11,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:11,575 INFO L225 Difference]: With dead ends: 6590 [2021-11-03 05:04:11,575 INFO L226 Difference]: Without dead ends: 3334 [2021-11-03 05:04:11,581 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 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 05:04:11,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2021-11-03 05:04:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3334. [2021-11-03 05:04:11,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3247 states have (on average 1.327071142593163) internal successors, (4309), 3333 states have internal predecessors, (4309), 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 05:04:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4309 transitions. [2021-11-03 05:04:11,668 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4309 transitions. Word has length 58 [2021-11-03 05:04:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:11,669 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 4309 transitions. [2021-11-03 05:04:11,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 05:04:11,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4309 transitions. [2021-11-03 05:04:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 05:04:11,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:11,675 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] [2021-11-03 05:04:11,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:11,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:11,876 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:04:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:11,877 INFO L85 PathProgramCache]: Analyzing trace with hash -69686705, now seen corresponding path program 1 times [2021-11-03 05:04:11,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:11,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075294468] [2021-11-03 05:04:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:11,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:11,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:11,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:11,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:04:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:15,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:04:15,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:16,294 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 05:04:16,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:16,826 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 05:04:16,826 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:16,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075294468] [2021-11-03 05:04:16,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075294468] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:16,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:16,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 05:04:16,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027660643] [2021-11-03 05:04:16,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:04:16,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:16,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:04:16,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:04:16,828 INFO L87 Difference]: Start difference. First operand 3334 states and 4309 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 05:04:30,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:30,973 INFO L93 Difference]: Finished difference Result 9047 states and 11596 transitions. [2021-11-03 05:04:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:04:30,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 62 [2021-11-03 05:04:30,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:31,005 INFO L225 Difference]: With dead ends: 9047 [2021-11-03 05:04:31,006 INFO L226 Difference]: Without dead ends: 5759 [2021-11-03 05:04:31,012 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:04:31,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-11-03 05:04:31,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 3334. [2021-11-03 05:04:31,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3247 states have (on average 1.3267631659993842) internal successors, (4308), 3333 states have internal predecessors, (4308), 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 05:04:31,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4308 transitions. [2021-11-03 05:04:31,118 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4308 transitions. Word has length 62 [2021-11-03 05:04:31,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:31,119 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 4308 transitions. [2021-11-03 05:04:31,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 05:04:31,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4308 transitions. [2021-11-03 05:04:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:04:31,121 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:31,121 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:04:31,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:31,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:31,336 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:04:31,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash -930055501, now seen corresponding path program 1 times [2021-11-03 05:04:31,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:31,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426598519] [2021-11-03 05:04:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:31,340 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:31,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:31,343 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:31,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:04:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:35,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:04:35,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:36,103 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 05:04:36,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:36,578 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 05:04:36,579 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:36,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426598519] [2021-11-03 05:04:36,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426598519] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:36,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:36,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:04:36,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321414425] [2021-11-03 05:04:36,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:04:36,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:04:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:04:36,581 INFO L87 Difference]: Start difference. First operand 3334 states and 4308 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 05:04:40,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:40,797 INFO L93 Difference]: Finished difference Result 6591 states and 8517 transitions. [2021-11-03 05:04:40,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:04:40,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-03 05:04:40,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:40,812 INFO L225 Difference]: With dead ends: 6591 [2021-11-03 05:04:40,813 INFO L226 Difference]: Without dead ends: 3334 [2021-11-03 05:04:40,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:04:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2021-11-03 05:04:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3334. [2021-11-03 05:04:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3247 states have (on average 1.3264551894056051) internal successors, (4307), 3333 states have internal predecessors, (4307), 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 05:04:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4307 transitions. [2021-11-03 05:04:40,895 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4307 transitions. Word has length 70 [2021-11-03 05:04:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:40,896 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 4307 transitions. [2021-11-03 05:04:40,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 05:04:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4307 transitions. [2021-11-03 05:04:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-03 05:04:40,897 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:40,898 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] [2021-11-03 05:04:40,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:41,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:41,124 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:04:41,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:41,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1485552222, now seen corresponding path program 1 times [2021-11-03 05:04:41,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:41,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872197418] [2021-11-03 05:04:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:41,128 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:41,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:41,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:41,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:04:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:45,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:04:45,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:46,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:46,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:46,609 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 05:04:46,610 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:46,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872197418] [2021-11-03 05:04:46,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872197418] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:46,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:46,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 05:04:46,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632584031] [2021-11-03 05:04:46,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:04:46,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:46,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:04:46,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:04:46,611 INFO L87 Difference]: Start difference. First operand 3334 states and 4307 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 05:05:02,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:05:02,155 INFO L93 Difference]: Finished difference Result 6607 states and 8539 transitions. [2021-11-03 05:05:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:05:02,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 82 [2021-11-03 05:05:02,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:05:02,172 INFO L225 Difference]: With dead ends: 6607 [2021-11-03 05:05:02,172 INFO L226 Difference]: Without dead ends: 3334 [2021-11-03 05:05:02,177 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:05:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2021-11-03 05:05:02,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3334. [2021-11-03 05:05:02,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3247 states have (on average 1.3261472128118263) internal successors, (4306), 3333 states have internal predecessors, (4306), 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 05:05:02,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4306 transitions. [2021-11-03 05:05:02,257 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4306 transitions. Word has length 82 [2021-11-03 05:05:02,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:05:02,257 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 4306 transitions. [2021-11-03 05:05:02,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 05:05:02,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4306 transitions. [2021-11-03 05:05:02,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 05:05:02,259 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:05:02,259 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] [2021-11-03 05:05:02,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:05:02,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:05:02,476 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:05:02,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:05:02,476 INFO L85 PathProgramCache]: Analyzing trace with hash -839835714, now seen corresponding path program 1 times [2021-11-03 05:05:02,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:05:02,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467581305] [2021-11-03 05:05:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:02,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:05:02,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:05:02,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:05:02,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:05:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:06,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:05:06,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:07,326 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 05:05:07,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:07,641 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 05:05:07,641 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:05:07,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467581305] [2021-11-03 05:05:07,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467581305] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:05:07,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:05:07,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:05:07,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974527959] [2021-11-03 05:05:07,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:05:07,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:05:07,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:05:07,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:05:07,643 INFO L87 Difference]: Start difference. First operand 3334 states and 4306 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 05:05:10,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:05:10,771 INFO L93 Difference]: Finished difference Result 9537 states and 12274 transitions. [2021-11-03 05:05:10,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:05:10,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2021-11-03 05:05:10,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:05:10,801 INFO L225 Difference]: With dead ends: 9537 [2021-11-03 05:05:10,801 INFO L226 Difference]: Without dead ends: 6279 [2021-11-03 05:05:10,807 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 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 05:05:10,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6279 states. [2021-11-03 05:05:10,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6279 to 3448. [2021-11-03 05:05:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 3361 states have (on average 1.326390955072895) internal successors, (4458), 3447 states have internal predecessors, (4458), 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 05:05:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4458 transitions. [2021-11-03 05:05:10,897 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4458 transitions. Word has length 90 [2021-11-03 05:05:10,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:05:10,897 INFO L470 AbstractCegarLoop]: Abstraction has 3448 states and 4458 transitions. [2021-11-03 05:05:10,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 05:05:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4458 transitions. [2021-11-03 05:05:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 05:05:10,899 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:05:10,899 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] [2021-11-03 05:05:10,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:05:11,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:05:11,109 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:05:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:05:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash 57557564, now seen corresponding path program 1 times [2021-11-03 05:05:11,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:05:11,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032042898] [2021-11-03 05:05:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:11,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:05:11,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:05:11,113 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:05:11,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:05:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:15,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:05:15,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:16,727 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 05:05:16,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:17,430 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 05:05:17,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:05:17,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032042898] [2021-11-03 05:05:17,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032042898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:05:17,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:05:17,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 05:05:17,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071333336] [2021-11-03 05:05:17,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:05:17,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:05:17,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:05:17,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:05:17,432 INFO L87 Difference]: Start difference. First operand 3448 states and 4458 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 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 05:12:24,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:24,840 INFO L93 Difference]: Finished difference Result 9517 states and 12233 transitions. [2021-11-03 05:12:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:12:24,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 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 90 [2021-11-03 05:12:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:24,862 INFO L225 Difference]: With dead ends: 9517 [2021-11-03 05:12:24,862 INFO L226 Difference]: Without dead ends: 6142 [2021-11-03 05:12:24,867 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:12:24,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6142 states. [2021-11-03 05:12:24,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6142 to 3448. [2021-11-03 05:12:24,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 3361 states have (on average 1.3207378756322523) internal successors, (4439), 3447 states have internal predecessors, (4439), 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 05:12:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4439 transitions. [2021-11-03 05:12:24,987 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4439 transitions. Word has length 90 [2021-11-03 05:12:24,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:24,988 INFO L470 AbstractCegarLoop]: Abstraction has 3448 states and 4439 transitions. [2021-11-03 05:12:24,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 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 05:12:24,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4439 transitions. [2021-11-03 05:12:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 05:12:24,990 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:24,990 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] [2021-11-03 05:12:25,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:25,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:25,216 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:12:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:25,216 INFO L85 PathProgramCache]: Analyzing trace with hash 481204286, now seen corresponding path program 1 times [2021-11-03 05:12:25,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:25,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921118932] [2021-11-03 05:12:25,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:25,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:25,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:25,222 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:25,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6971b57b-1f5b-42d4-a411-1a6133942fbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:12:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:30,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:12:30,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:32,240 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 05:12:32,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:33,303 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 05:12:33,303 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:33,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921118932] [2021-11-03 05:12:33,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921118932] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:33,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:33,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-03 05:12:33,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710186982] [2021-11-03 05:12:33,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:12:33,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:33,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:12:33,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:12:33,306 INFO L87 Difference]: Start difference. First operand 3448 states and 4439 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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)