./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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 76206b4f7fb4016a4087a30dbd51e90ef533ed916c2eae20331e23ac9a9e91be --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:12:56,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:12:56,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:12:56,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:12:56,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:12:56,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:12:56,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:12:56,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:12:56,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:12:56,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:12:56,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:12:56,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:12:56,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:12:56,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:12:56,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:12:56,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:12:56,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:12:56,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:12:56,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:12:56,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:12:56,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:12:56,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:12:56,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:12:56,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:12:56,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:12:56,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:12:56,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:12:56,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:12:56,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:12:56,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:12:56,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:12:56,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:12:56,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:12:56,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:12:56,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:12:56,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:12:56,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:12:56,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:12:56,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:12:56,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:12:56,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:12:56,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:12:56,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:12:56,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:12:56,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:12:56,352 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:12:56,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:12:56,353 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:12:56,353 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:12:56,353 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:12:56,359 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:12:56,359 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:12:56,360 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:12:56,361 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:12:56,361 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:12:56,361 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:12:56,361 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:12:56,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:12:56,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:12:56,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:12:56,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:12:56,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:12:56,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:12:56,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:12:56,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:12:56,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:12:56,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:12:56,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:12:56,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:12:56,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:12:56,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:12:56,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:12:56,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:12:56,366 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:12:56,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:12:56,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:12:56,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:12:56,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:12:56,367 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76206b4f7fb4016a4087a30dbd51e90ef533ed916c2eae20331e23ac9a9e91be [2021-11-03 04:12:56,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:12:56,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:12:56,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:12:56,710 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:12:56,711 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:12:56,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2021-11-03 04:12:56,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/28f539ea4/f54e29e4a2d546eeaeabfce3c50a8773/FLAG7569600ee [2021-11-03 04:12:57,573 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:12:57,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2021-11-03 04:12:57,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/28f539ea4/f54e29e4a2d546eeaeabfce3c50a8773/FLAG7569600ee [2021-11-03 04:12:58,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/28f539ea4/f54e29e4a2d546eeaeabfce3c50a8773 [2021-11-03 04:12:58,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:12:58,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:12:58,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:12:58,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:12:58,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:12:58,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:12:58" (1/1) ... [2021-11-03 04:12:58,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6497b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:12:58, skipping insertion in model container [2021-11-03 04:12:58,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:12:58" (1/1) ... [2021-11-03 04:12:58,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:12:58,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:12:58,607 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4494,4507] [2021-11-03 04:12:58,619 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4554,4567] [2021-11-03 04:12:58,648 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:12:58,656 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:12:59,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,729 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:12:59,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:00,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:00,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:00,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:00,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:00,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:00,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:00,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:00,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:00,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:00,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:00,624 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:00,678 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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:13:00,685 INFO L168 Benchmark]: Toolchain (without parser) took 2588.03 ms. Allocated memory was 98.6 MB in the beginning and 142.6 MB in the end (delta: 44.0 MB). Free memory was 70.7 MB in the beginning and 109.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:00,686 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 76.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:13:00,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2585.86 ms. Allocated memory was 98.6 MB in the beginning and 142.6 MB in the end (delta: 44.0 MB). Free memory was 70.5 MB in the beginning and 109.1 MB in the end (delta: -38.7 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:00,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 76.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2585.86 ms. Allocated memory was 98.6 MB in the beginning and 142.6 MB in the end (delta: 44.0 MB). Free memory was 70.5 MB in the beginning and 109.1 MB in the end (delta: -38.7 MB). Peak memory consumption was 38.8 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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 76206b4f7fb4016a4087a30dbd51e90ef533ed916c2eae20331e23ac9a9e91be --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:13:02,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:13:02,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:13:02,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:13:02,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:13:02,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:13:02,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:13:02,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:13:02,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:13:02,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:13:02,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:13:02,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:13:02,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:13:02,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:13:02,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:13:02,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:13:02,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:13:02,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:13:02,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:13:02,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:13:02,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:13:02,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:13:02,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:13:02,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:13:03,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:13:03,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:13:03,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:13:03,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:13:03,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:13:03,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:13:03,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:13:03,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:13:03,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:13:03,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:13:03,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:13:03,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:13:03,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:13:03,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:13:03,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:13:03,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:13:03,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:13:03,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:13:03,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:13:03,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:13:03,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:13:03,080 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:13:03,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:13:03,081 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:13:03,081 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:13:03,081 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:13:03,081 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:13:03,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:13:03,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:13:03,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:13:03,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:13:03,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:13:03,085 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:13:03,085 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:13:03,085 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:13:03,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:13:03,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:13:03,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:13:03,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:13:03,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:13:03,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:13:03,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:03,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:13:03,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:13:03,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:13:03,088 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:13:03,088 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:13:03,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:13:03,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:13:03,089 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:13:03,089 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76206b4f7fb4016a4087a30dbd51e90ef533ed916c2eae20331e23ac9a9e91be [2021-11-03 04:13:03,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:13:03,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:13:03,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:13:03,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:13:03,458 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:13:03,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2021-11-03 04:13:03,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/11c9444f2/07bd3bedaa3f44cab9217ae1800d6740/FLAG11d500908 [2021-11-03 04:13:04,418 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:13:04,418 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2021-11-03 04:13:04,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/11c9444f2/07bd3bedaa3f44cab9217ae1800d6740/FLAG11d500908 [2021-11-03 04:13:04,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/data/11c9444f2/07bd3bedaa3f44cab9217ae1800d6740 [2021-11-03 04:13:04,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:13:04,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:13:04,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:04,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:13:04,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:13:04,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:04" (1/1) ... [2021-11-03 04:13:04,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154bacf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:04, skipping insertion in model container [2021-11-03 04:13:04,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:04" (1/1) ... [2021-11-03 04:13:04,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:13:05,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:05,377 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4494,4507] [2021-11-03 04:13:05,386 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4554,4567] [2021-11-03 04:13:05,420 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:05,427 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:06,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,789 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,801 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:06,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:07,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:07,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:07,246 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:07,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:07,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:07,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:07,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:07,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:07,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:07,442 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:07,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,820 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,821 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:07,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:07,941 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:13:07,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:07,988 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4494,4507] [2021-11-03 04:13:07,989 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4554,4567] [2021-11-03 04:13:07,990 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:07,991 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:08,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,026 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,107 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:08,108 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:08,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:08,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:08,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:08,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:08,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:08,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:08,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:08,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:08,135 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:08,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:08,346 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:13:08,359 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4494,4507] [2021-11-03 04:13:08,359 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_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i[4554,4567] [2021-11-03 04:13:08,361 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:08,362 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:08,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,462 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:08,463 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:08,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:08,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:08,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:08,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:08,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:08,469 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:08,469 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:08,471 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:08,500 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:08,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:08,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:09,111 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:13:09,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09 WrapperNode [2021-11-03 04:13:09,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:09,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:13:09,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:13:09,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:13:09,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:13:09,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:13:09,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:13:09,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:13:09,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:13:09,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:13:09,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:13:09,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:13:09,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (1/1) ... [2021-11-03 04:13:09,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:09,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:13:09,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:13:09,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:13:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 04:13:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:13:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:13:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:13:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:13:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:13:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:13:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:13:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:13:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:13:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:13:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:13:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:13:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:13:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:13:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:13:23,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:13:23,522 INFO L299 CfgBuilder]: Removed 126 assume(true) statements. [2021-11-03 04:13:23,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:13:23 BoogieIcfgContainer [2021-11-03 04:13:23,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:13:23,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:13:23,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:13:23,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:13:23,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:13:04" (1/3) ... [2021-11-03 04:13:23,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dafb883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:13:23, skipping insertion in model container [2021-11-03 04:13:23,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:09" (2/3) ... [2021-11-03 04:13:23,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dafb883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:13:23, skipping insertion in model container [2021-11-03 04:13:23,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:13:23" (3/3) ... [2021-11-03 04:13:23,532 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness.i [2021-11-03 04:13:23,537 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:13:23,538 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 04:13:23,585 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:13:23,591 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:13:23,591 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 04:13:23,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 124 states have (on average 1.3951612903225807) internal successors, (173), 129 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:13:23,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:23,616 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] [2021-11-03 04:13:23,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:13:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash -662474665, now seen corresponding path program 1 times [2021-11-03 04:13:23,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:23,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966556521] [2021-11-03 04:13:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:23,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:23,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:23,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:23,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:13:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:13:27,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:13:27,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:13:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:28,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:13:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:28,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:13:28,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966556521] [2021-11-03 04:13:28,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966556521] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:13:28,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:13:28,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:13:28,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121754713] [2021-11-03 04:13:28,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:13:28,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:13:28,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:13:28,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:13:28,299 INFO L87 Difference]: Start difference. First operand has 130 states, 124 states have (on average 1.3951612903225807) internal successors, (173), 129 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:13:28,349 INFO L93 Difference]: Finished difference Result 256 states and 341 transitions. [2021-11-03 04:13:28,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:13:28,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2021-11-03 04:13:28,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:13:28,362 INFO L225 Difference]: With dead ends: 256 [2021-11-03 04:13:28,362 INFO L226 Difference]: Without dead ends: 124 [2021-11-03 04:13:28,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:13:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-03 04:13:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-03 04:13:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.2436974789915967) internal successors, (148), 123 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2021-11-03 04:13:28,414 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 57 [2021-11-03 04:13:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:13:28,414 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2021-11-03 04:13:28,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2021-11-03 04:13:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:13:28,421 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:28,421 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] [2021-11-03 04:13:28,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:13:28,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:13:28,635 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:13:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:28,636 INFO L85 PathProgramCache]: Analyzing trace with hash -683098601, now seen corresponding path program 1 times [2021-11-03 04:13:28,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:28,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768586272] [2021-11-03 04:13:28,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:28,641 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:28,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:28,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:28,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:13:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:13:32,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:13:32,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:13:32,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:32,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:13:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:33,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:13:33,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768586272] [2021-11-03 04:13:33,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768586272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:13:33,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:13:33,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:13:33,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430363768] [2021-11-03 04:13:33,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:13:33,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:13:33,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:13:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:13:33,180 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:33,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:13:33,339 INFO L93 Difference]: Finished difference Result 338 states and 405 transitions. [2021-11-03 04:13:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:13:33,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2021-11-03 04:13:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:13:33,347 INFO L225 Difference]: With dead ends: 338 [2021-11-03 04:13:33,348 INFO L226 Difference]: Without dead ends: 236 [2021-11-03 04:13:33,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:13:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-11-03 04:13:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 127. [2021-11-03 04:13:33,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 122 states have (on average 1.2377049180327868) internal successors, (151), 126 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 151 transitions. [2021-11-03 04:13:33,376 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 151 transitions. Word has length 57 [2021-11-03 04:13:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:13:33,376 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 151 transitions. [2021-11-03 04:13:33,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 151 transitions. [2021-11-03 04:13:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 04:13:33,378 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:33,378 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] [2021-11-03 04:13:33,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:13:33,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:13:33,579 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:13:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash 14737147, now seen corresponding path program 1 times [2021-11-03 04:13:33,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:33,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387249524] [2021-11-03 04:13:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:33,585 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:33,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:33,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:33,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:13:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:13:37,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:13:37,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:13:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:37,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:13:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:38,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:13:38,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387249524] [2021-11-03 04:13:38,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387249524] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:13:38,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:13:38,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:13:38,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587052377] [2021-11-03 04:13:38,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:13:38,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:13:38,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:13:38,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:13:38,019 INFO L87 Difference]: Start difference. First operand 127 states and 151 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:38,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:13:38,180 INFO L93 Difference]: Finished difference Result 229 states and 273 transitions. [2021-11-03 04:13:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:13:38,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 59 [2021-11-03 04:13:38,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:13:38,182 INFO L225 Difference]: With dead ends: 229 [2021-11-03 04:13:38,182 INFO L226 Difference]: Without dead ends: 127 [2021-11-03 04:13:38,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:13:38,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-03 04:13:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2021-11-03 04:13:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.226890756302521) internal successors, (146), 123 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:38,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 146 transitions. [2021-11-03 04:13:38,193 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 146 transitions. Word has length 59 [2021-11-03 04:13:38,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:13:38,193 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 146 transitions. [2021-11-03 04:13:38,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 146 transitions. [2021-11-03 04:13:38,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:13:38,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:38,199 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 04:13:38,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:13:38,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:13:38,407 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:13:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:38,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1101691960, now seen corresponding path program 1 times [2021-11-03 04:13:38,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:38,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814823827] [2021-11-03 04:13:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:38,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:38,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:38,413 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:38,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:13:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:13:42,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1653 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:13:42,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:13:42,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 04:13:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:43,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:13:43,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-03 04:13:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:43,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:13:43,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814823827] [2021-11-03 04:13:43,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814823827] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:13:43,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:13:43,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:13:43,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944247188] [2021-11-03 04:13:43,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:13:43,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:13:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:13:43,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:13:43,760 INFO L87 Difference]: Start difference. First operand 124 states and 146 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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 04:13:49,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:13:49,735 INFO L93 Difference]: Finished difference Result 219 states and 260 transitions. [2021-11-03 04:13:49,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:13:49,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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 62 [2021-11-03 04:13:49,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:13:49,738 INFO L225 Difference]: With dead ends: 219 [2021-11-03 04:13:49,738 INFO L226 Difference]: Without dead ends: 130 [2021-11-03 04:13:49,739 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:13:49,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-03 04:13:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2021-11-03 04:13:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 121 states have (on average 1.2231404958677685) internal successors, (148), 125 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2021-11-03 04:13:49,751 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 62 [2021-11-03 04:13:49,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:13:49,752 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2021-11-03 04:13:49,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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 04:13:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2021-11-03 04:13:49,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:13:49,753 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:49,754 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 04:13:49,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:13:49,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:13:49,971 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:13:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:49,971 INFO L85 PathProgramCache]: Analyzing trace with hash -442160438, now seen corresponding path program 1 times [2021-11-03 04:13:49,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:49,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599473866] [2021-11-03 04:13:49,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:49,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:49,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:49,977 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:49,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:13:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:13:53,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:13:53,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:13:54,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:54,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:13:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:54,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:13:54,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599473866] [2021-11-03 04:13:54,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599473866] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:13:54,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:13:54,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:13:54,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410971333] [2021-11-03 04:13:54,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:13:54,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:13:54,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:13:54,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:13:54,616 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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 04:13:54,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:13:54,799 INFO L93 Difference]: Finished difference Result 218 states and 258 transitions. [2021-11-03 04:13:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:13:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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 62 [2021-11-03 04:13:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:13:54,802 INFO L225 Difference]: With dead ends: 218 [2021-11-03 04:13:54,802 INFO L226 Difference]: Without dead ends: 124 [2021-11-03 04:13:54,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:13:54,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-03 04:13:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-03 04:13:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.1932773109243697) internal successors, (142), 123 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:54,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2021-11-03 04:13:54,813 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 62 [2021-11-03 04:13:54,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:13:54,814 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2021-11-03 04:13:54,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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 04:13:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2021-11-03 04:13:54,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 04:13:54,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:54,816 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] [2021-11-03 04:13:54,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 04:13:55,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:13:55,039 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:13:55,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:55,039 INFO L85 PathProgramCache]: Analyzing trace with hash 547390499, now seen corresponding path program 1 times [2021-11-03 04:13:55,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:55,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521947223] [2021-11-03 04:13:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:55,043 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:55,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:55,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:55,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:13:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:13:59,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:13:59,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:13:59,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 04:13:59,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-03 04:13:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:59,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:13:59,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-03 04:14:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:00,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:00,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521947223] [2021-11-03 04:14:00,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521947223] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:00,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:00,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:14:00,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858495340] [2021-11-03 04:14:00,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:14:00,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:00,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:14:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:14:00,350 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:06,584 INFO L93 Difference]: Finished difference Result 271 states and 313 transitions. [2021-11-03 04:14:06,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:14:06,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-03 04:14:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:06,587 INFO L225 Difference]: With dead ends: 271 [2021-11-03 04:14:06,587 INFO L226 Difference]: Without dead ends: 181 [2021-11-03 04:14:06,588 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:14:06,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-03 04:14:06,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 124. [2021-11-03 04:14:06,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.184873949579832) internal successors, (141), 123 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 141 transitions. [2021-11-03 04:14:06,598 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 141 transitions. Word has length 64 [2021-11-03 04:14:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:06,598 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 141 transitions. [2021-11-03 04:14:06,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 141 transitions. [2021-11-03 04:14:06,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 04:14:06,600 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:06,601 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] [2021-11-03 04:14:06,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 04:14:06,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:06,823 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:14:06,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:06,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1406904410, now seen corresponding path program 1 times [2021-11-03 04:14:06,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:06,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64141294] [2021-11-03 04:14:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:06,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:06,827 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:06,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:14:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:11,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:14:11,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:11,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:11,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:11,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64141294] [2021-11-03 04:14:11,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64141294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:11,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:11,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:14:11,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009848723] [2021-11-03 04:14:11,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:14:11,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:14:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:14:11,403 INFO L87 Difference]: Start difference. First operand 124 states and 141 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:11,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:11,695 INFO L93 Difference]: Finished difference Result 207 states and 234 transitions. [2021-11-03 04:14:11,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:14:11,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-03 04:14:11,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:11,698 INFO L225 Difference]: With dead ends: 207 [2021-11-03 04:14:11,698 INFO L226 Difference]: Without dead ends: 144 [2021-11-03 04:14:11,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 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 04:14:11,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-03 04:14:11,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 124. [2021-11-03 04:14:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.1764705882352942) internal successors, (140), 123 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:11,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2021-11-03 04:14:11,707 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 65 [2021-11-03 04:14:11,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:11,708 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2021-11-03 04:14:11,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:11,708 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2021-11-03 04:14:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 04:14:11,709 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:11,709 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:14:11,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:11,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:11,910 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:14:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:11,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1252657281, now seen corresponding path program 1 times [2021-11-03 04:14:11,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:11,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714012150] [2021-11-03 04:14:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:11,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:11,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:11,915 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:11,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:14:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:16,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:14:16,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:16,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-03 04:14:16,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-03 04:14:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:16,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:16,928 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:16,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714012150] [2021-11-03 04:14:16,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714012150] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:16,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:16,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:14:16,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518913488] [2021-11-03 04:14:16,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:14:16,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:16,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:14:16,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:14:16,929 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 04:14:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:23,557 INFO L93 Difference]: Finished difference Result 197 states and 226 transitions. [2021-11-03 04:14:23,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:14:23,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 67 [2021-11-03 04:14:23,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:23,561 INFO L225 Difference]: With dead ends: 197 [2021-11-03 04:14:23,561 INFO L226 Difference]: Without dead ends: 133 [2021-11-03 04:14:23,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:14:23,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-03 04:14:23,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 124. [2021-11-03 04:14:23,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.1512605042016806) internal successors, (137), 123 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:23,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 137 transitions. [2021-11-03 04:14:23,571 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 137 transitions. Word has length 67 [2021-11-03 04:14:23,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:23,571 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 137 transitions. [2021-11-03 04:14:23,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 04:14:23,571 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 137 transitions. [2021-11-03 04:14:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:14:23,572 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:23,573 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] [2021-11-03 04:14:23,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:23,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:23,799 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:14:23,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash 499737873, now seen corresponding path program 1 times [2021-11-03 04:14:23,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:23,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261538398] [2021-11-03 04:14:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:23,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:23,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:23,804 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:23,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:14:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:28,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:14:28,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:28,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:28,474 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:28,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261538398] [2021-11-03 04:14:28,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261538398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:28,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:28,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:14:28,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800256947] [2021-11-03 04:14:28,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:14:28,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:28,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:14:28,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:14:28,476 INFO L87 Difference]: Start difference. First operand 124 states and 137 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:28,506 INFO L93 Difference]: Finished difference Result 173 states and 190 transitions. [2021-11-03 04:14:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:14:28,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 04:14:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:28,508 INFO L225 Difference]: With dead ends: 173 [2021-11-03 04:14:28,508 INFO L226 Difference]: Without dead ends: 125 [2021-11-03 04:14:28,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:14:28,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-03 04:14:28,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-11-03 04:14:28,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 120 states have (on average 1.15) internal successors, (138), 124 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 138 transitions. [2021-11-03 04:14:28,517 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 138 transitions. Word has length 68 [2021-11-03 04:14:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:28,518 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 138 transitions. [2021-11-03 04:14:28,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 138 transitions. [2021-11-03 04:14:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:14:28,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:28,519 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] [2021-11-03 04:14:28,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-03 04:14:28,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:28,735 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:14:28,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2020222061, now seen corresponding path program 1 times [2021-11-03 04:14:28,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:28,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445469175] [2021-11-03 04:14:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:28,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:28,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:28,746 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:28,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:14:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:33,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:14:33,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:33,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:33,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:33,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445469175] [2021-11-03 04:14:33,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445469175] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:33,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:33,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:14:33,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127199752] [2021-11-03 04:14:33,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:14:33,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:33,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:14:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:14:33,500 INFO L87 Difference]: Start difference. First operand 125 states and 138 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 04:14:33,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:33,621 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2021-11-03 04:14:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:14:33,622 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 68 [2021-11-03 04:14:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:33,623 INFO L225 Difference]: With dead ends: 125 [2021-11-03 04:14:33,623 INFO L226 Difference]: Without dead ends: 123 [2021-11-03 04:14:33,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:14:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-03 04:14:33,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-03 04:14:33,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 119 states have (on average 1.1428571428571428) internal successors, (136), 122 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:33,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2021-11-03 04:14:33,632 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 68 [2021-11-03 04:14:33,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:33,633 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2021-11-03 04:14:33,633 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 04:14:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2021-11-03 04:14:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 04:14:33,634 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:33,634 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 04:14:33,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:33,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:33,838 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:14:33,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:33,838 INFO L85 PathProgramCache]: Analyzing trace with hash -108050539, now seen corresponding path program 1 times [2021-11-03 04:14:33,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:33,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650514042] [2021-11-03 04:14:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:33,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:33,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:33,843 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:33,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:14:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:38,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1709 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:14:38,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:38,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:41,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:41,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650514042] [2021-11-03 04:14:41,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650514042] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:41,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:41,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:14:41,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275395372] [2021-11-03 04:14:41,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:14:41,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:41,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:14:41,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-11-03 04:14:41,160 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:41,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:41,397 INFO L93 Difference]: Finished difference Result 123 states and 136 transitions. [2021-11-03 04:14:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:14:41,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 04:14:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:41,399 INFO L225 Difference]: With dead ends: 123 [2021-11-03 04:14:41,399 INFO L226 Difference]: Without dead ends: 121 [2021-11-03 04:14:41,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=23, Invalid=32, Unknown=1, NotChecked=0, Total=56 [2021-11-03 04:14:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-03 04:14:41,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-11-03 04:14:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.1355932203389831) internal successors, (134), 120 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 134 transitions. [2021-11-03 04:14:41,411 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 134 transitions. Word has length 70 [2021-11-03 04:14:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:41,412 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 134 transitions. [2021-11-03 04:14:41,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:41,413 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 134 transitions. [2021-11-03 04:14:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 04:14:41,413 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:41,414 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] [2021-11-03 04:14:41,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:41,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:41,615 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:14:41,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:41,615 INFO L85 PathProgramCache]: Analyzing trace with hash 355402322, now seen corresponding path program 1 times [2021-11-03 04:14:41,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:41,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449718799] [2021-11-03 04:14:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:41,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:41,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:41,620 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:41,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:14:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:46,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:14:46,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:47,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:47,506 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:47,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449718799] [2021-11-03 04:14:47,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449718799] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:47,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:47,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:14:47,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479444988] [2021-11-03 04:14:47,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:14:47,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:47,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:14:47,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:14:47,509 INFO L87 Difference]: Start difference. First operand 121 states and 134 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:47,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:47,786 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2021-11-03 04:14:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:14:47,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-03 04:14:47,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:47,791 INFO L225 Difference]: With dead ends: 152 [2021-11-03 04:14:47,791 INFO L226 Difference]: Without dead ends: 121 [2021-11-03 04:14:47,792 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:14:47,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-03 04:14:47,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-11-03 04:14:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.1271186440677967) internal successors, (133), 120 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 133 transitions. [2021-11-03 04:14:47,803 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 133 transitions. Word has length 81 [2021-11-03 04:14:47,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:47,804 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 133 transitions. [2021-11-03 04:14:47,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:47,804 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 133 transitions. [2021-11-03 04:14:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 04:14:47,805 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:47,806 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] [2021-11-03 04:14:47,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 04:14:48,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:48,019 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:14:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:48,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1419605040, now seen corresponding path program 1 times [2021-11-03 04:14:48,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:48,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413068748] [2021-11-03 04:14:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:48,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:48,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:48,027 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:48,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb3feb9-a855-47f6-9ece-06ba60a4fe23/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:15:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:13,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-03 04:15:13,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:14,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:14,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:14,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:14,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:14,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:14,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:14,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:15,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 109 [2021-11-03 04:15:16,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:15:16,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,891 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:15:16,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:15:16,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:15:16,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:15:16,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:15:16,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:15:16,949 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:15:17,282 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-03 04:15:17,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 49 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 533 treesize of output 357 [2021-11-03 04:15:18,664 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:15:18,664 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 507 treesize of output 411 [2021-11-03 04:15:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:18,985 INFO L328 TraceCheckSpWp]: Computing backward predicates...