./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:43:41,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:43:41,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:43:41,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:43:41,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:43:41,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:43:41,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:43:41,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:43:41,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:43:41,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:43:41,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:43:41,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:43:41,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:43:41,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:43:41,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:43:41,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:43:41,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:43:41,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:43:41,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:43:41,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:43:41,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:43:41,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:43:41,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:43:41,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:43:41,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:43:41,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:43:41,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:43:41,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:43:41,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:43:41,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:43:41,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:43:41,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:43:41,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:43:41,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:43:41,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:43:41,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:43:41,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:43:41,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:43:41,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:43:41,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:43:41,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:43:41,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:43:41,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:43:41,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:43:41,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:43:41,598 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:43:41,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:43:41,598 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:43:41,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:43:41,598 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:43:41,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:43:41,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:43:41,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:43:41,599 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:43:41,599 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:43:41,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:43:41,600 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:43:41,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:43:41,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:43:41,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:43:41,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:43:41,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:43:41,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:43:41,602 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:43:41,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:43:41,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:43:41,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:43:41,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:43:41,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:43:41,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:43:41,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:43:41,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:43:41,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:43:41,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:43:41,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:43:41,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:43:41,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:43:41,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:43:41,605 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2021-11-03 04:43:41,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:43:41,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:43:41,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:43:41,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:43:41,926 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:43:41,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-03 04:43:41,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/970a24e1e/bdc838ed476c458ab75fcb3280cddea0/FLAGbeabb5e56 [2021-11-03 04:43:42,795 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:43:42,795 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-03 04:43:42,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/970a24e1e/bdc838ed476c458ab75fcb3280cddea0/FLAGbeabb5e56 [2021-11-03 04:43:43,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/970a24e1e/bdc838ed476c458ab75fcb3280cddea0 [2021-11-03 04:43:43,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:43:43,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:43:43,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:43:43,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:43:43,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:43:43,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:43:43" (1/1) ... [2021-11-03 04:43:43,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b73cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:43, skipping insertion in model container [2021-11-03 04:43:43,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:43:43" (1/1) ... [2021-11-03 04:43:43,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:43:43,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:43:43,791 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-03 04:43:43,803 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-03 04:43:43,837 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:43:43,845 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:43:44,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,965 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,966 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,967 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:44,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:45,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:43:45,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:43:45,660 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:43:45,662 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:43:45,663 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:43:45,664 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:43:45,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:43:45,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:43:45,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:43:45,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:43:45,882 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:43:45,898 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:43:45,904 INFO L168 Benchmark]: Toolchain (without parser) took 2592.51 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 63.7 MB in the beginning and 88.8 MB in the end (delta: -25.1 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:43:45,905 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:43:45,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2590.55 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 63.4 MB in the beginning and 88.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:43:45,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2590.55 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 63.4 MB in the beginning and 88.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:43:48,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:43:48,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:43:48,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:43:48,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:43:48,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:43:48,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:43:48,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:43:48,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:43:48,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:43:48,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:43:48,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:43:48,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:43:48,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:43:48,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:43:48,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:43:48,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:43:48,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:43:48,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:43:48,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:43:48,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:43:48,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:43:48,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:43:48,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:43:48,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:43:48,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:43:48,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:43:48,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:43:48,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:43:48,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:43:48,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:43:48,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:43:48,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:43:48,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:43:48,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:43:48,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:43:48,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:43:48,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:43:48,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:43:48,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:43:48,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:43:48,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:43:48,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:43:48,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:43:48,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:43:48,312 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:43:48,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:43:48,313 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:43:48,313 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:43:48,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:43:48,313 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:43:48,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:43:48,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:43:48,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:43:48,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:43:48,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:43:48,315 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:43:48,316 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:43:48,316 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:43:48,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:43:48,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:43:48,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:43:48,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:43:48,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:43:48,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:43:48,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:43:48,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:43:48,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:43:48,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:43:48,319 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:43:48,319 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:43:48,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:43:48,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:43:48,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:43:48,320 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2021-11-03 04:43:48,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:43:48,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:43:48,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:43:48,679 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:43:48,680 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:43:48,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-03 04:43:48,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/bede5d133/385e2d622028401e9b353ce4991a7687/FLAG9678a2a00 [2021-11-03 04:43:49,583 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:43:49,586 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2021-11-03 04:43:49,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/bede5d133/385e2d622028401e9b353ce4991a7687/FLAG9678a2a00 [2021-11-03 04:43:50,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/data/bede5d133/385e2d622028401e9b353ce4991a7687 [2021-11-03 04:43:50,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:43:50,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:43:50,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:43:50,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:43:50,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:43:50,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:43:50" (1/1) ... [2021-11-03 04:43:50,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc1f3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:50, skipping insertion in model container [2021-11-03 04:43:50,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:43:50" (1/1) ... [2021-11-03 04:43:50,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:43:50,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:43:50,655 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-03 04:43:50,662 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-03 04:43:50,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:43:50,694 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:43:51,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,820 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,821 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,823 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:51,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:52,421 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:43:52,422 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:43:52,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:43:52,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:43:52,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:43:52,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:43:52,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:43:52,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:43:52,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:43:52,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:43:52,683 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:43:53,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:43:53,255 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:43:53,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:43:53,340 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-03 04:43:53,340 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-03 04:43:53,342 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:43:53,342 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:43:53,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:43:53,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:43:53,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:43:53,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:43:53,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:43:53,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:43:53,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:43:53,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:43:53,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:43:53,442 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:43:53,462 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:43:53,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:43:53,653 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:43:53,668 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2021-11-03 04:43:53,668 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_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2021-11-03 04:43:53,669 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:43:53,697 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:43:53,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:43:53,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:43:53,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:43:53,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:43:53,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:43:53,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:43:53,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:43:53,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:43:53,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:43:53,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:43:53,830 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:43:53,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:53,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:43:54,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:43:54,369 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:43:54,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54 WrapperNode [2021-11-03 04:43:54,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:43:54,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:43:54,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:43:54,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:43:54,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:43:54,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:43:54,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:43:54,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:43:54,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:43:54,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:43:54,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:43:54,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:43:54,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (1/1) ... [2021-11-03 04:43:54,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:43:54,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:43:55,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:43:55,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:43:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 04:43:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:43:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:43:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:43:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:43:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:43:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:43:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:43:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:43:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:43:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 04:43:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:43:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:43:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:43:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:43:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:43:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:43:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-03 04:43:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:43:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:43:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:43:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-03 04:44:28,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##293: assume !true; [2021-11-03 04:44:28,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##268: assume !true; [2021-11-03 04:44:28,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !true; [2021-11-03 04:44:28,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##319: assume !true; [2021-11-03 04:44:28,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !true; [2021-11-03 04:44:28,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume !true; [2021-11-03 04:44:28,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##102: assume !true; [2021-11-03 04:44:28,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:44:28,741 INFO L299 CfgBuilder]: Removed 364 assume(true) statements. [2021-11-03 04:44:28,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:44:28 BoogieIcfgContainer [2021-11-03 04:44:28,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:44:28,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:44:28,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:44:28,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:44:28,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:43:50" (1/3) ... [2021-11-03 04:44:28,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd7d165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:44:28, skipping insertion in model container [2021-11-03 04:44:28,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:43:54" (2/3) ... [2021-11-03 04:44:28,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd7d165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:44:28, skipping insertion in model container [2021-11-03 04:44:28,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:44:28" (3/3) ... [2021-11-03 04:44:28,754 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2021-11-03 04:44:28,761 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:44:28,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-03 04:44:28,819 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:44:28,826 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 04:44:28,826 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-03 04:44:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 385 states, 368 states have (on average 1.4375) internal successors, (529), 384 states have internal predecessors, (529), 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 04:44:28,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:44:28,861 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:44:28,862 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] [2021-11-03 04:44:28,863 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:44:28,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:44:28,868 INFO L85 PathProgramCache]: Analyzing trace with hash 424433486, now seen corresponding path program 1 times [2021-11-03 04:44:28,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:44:28,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952231900] [2021-11-03 04:44:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:44:28,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:44:28,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:44:28,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:44:28,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:44:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:44:33,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:44:33,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:44:33,801 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 04:44:33,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:44:33,946 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 04:44:33,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:44:33,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952231900] [2021-11-03 04:44:33,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952231900] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:44:33,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:44:33,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:44:33,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778401417] [2021-11-03 04:44:33,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:44:33,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:44:33,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:44:33,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:44:33,988 INFO L87 Difference]: Start difference. First operand has 385 states, 368 states have (on average 1.4375) internal successors, (529), 384 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 04:44:34,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:44:34,044 INFO L93 Difference]: Finished difference Result 764 states and 1051 transitions. [2021-11-03 04:44:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:44:34,046 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 54 [2021-11-03 04:44:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:44:34,060 INFO L225 Difference]: With dead ends: 764 [2021-11-03 04:44:34,060 INFO L226 Difference]: Without dead ends: 378 [2021-11-03 04:44:34,064 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 04:44:34,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-11-03 04:44:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2021-11-03 04:44:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.2955801104972375) internal successors, (469), 377 states have internal predecessors, (469), 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 04:44:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 469 transitions. [2021-11-03 04:44:34,136 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 469 transitions. Word has length 54 [2021-11-03 04:44:34,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:44:34,136 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 469 transitions. [2021-11-03 04:44:34,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 04:44:34,136 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 469 transitions. [2021-11-03 04:44:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:44:34,138 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:44:34,138 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] [2021-11-03 04:44:34,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:44:34,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:44:34,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:44:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:44:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash 624058192, now seen corresponding path program 1 times [2021-11-03 04:44:34,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:44:34,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519796891] [2021-11-03 04:44:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:44:34,371 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:44:34,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:44:34,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:44:34,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:44:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:44:38,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:44:38,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:44:38,957 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 04:44:38,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:44:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:44:39,220 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:44:39,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519796891] [2021-11-03 04:44:39,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519796891] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:44:39,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:44:39,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:44:39,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420848666] [2021-11-03 04:44:39,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:44:39,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:44:39,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:44:39,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:44:39,224 INFO L87 Difference]: Start difference. First operand 378 states and 469 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 04:44:47,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:44:47,984 INFO L93 Difference]: Finished difference Result 1084 states and 1348 transitions. [2021-11-03 04:44:47,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:44:47,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2021-11-03 04:44:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:44:47,992 INFO L225 Difference]: With dead ends: 1084 [2021-11-03 04:44:47,992 INFO L226 Difference]: Without dead ends: 728 [2021-11-03 04:44:47,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:44:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-11-03 04:44:48,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 384. [2021-11-03 04:44:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 368 states have (on average 1.2907608695652173) internal successors, (475), 383 states have internal predecessors, (475), 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 04:44:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 475 transitions. [2021-11-03 04:44:48,025 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 475 transitions. Word has length 54 [2021-11-03 04:44:48,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:44:48,026 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 475 transitions. [2021-11-03 04:44:48,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 04:44:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 475 transitions. [2021-11-03 04:44:48,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 04:44:48,028 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:44:48,028 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] [2021-11-03 04:44:48,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:44:48,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:44:48,253 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:44:48,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:44:48,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1027901676, now seen corresponding path program 1 times [2021-11-03 04:44:48,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:44:48,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122109783] [2021-11-03 04:44:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:44:48,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:44:48,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:44:48,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:44:48,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:44:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:44:52,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:44:52,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:44:52,621 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 04:44:52,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:44:52,896 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 04:44:52,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:44:52,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122109783] [2021-11-03 04:44:52,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122109783] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:44:52,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:44:52,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:44:52,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181632031] [2021-11-03 04:44:52,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:44:52,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:44:52,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:44:52,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:44:52,899 INFO L87 Difference]: Start difference. First operand 384 states and 475 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:44:53,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:44:53,327 INFO L93 Difference]: Finished difference Result 899 states and 1116 transitions. [2021-11-03 04:44:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:44:53,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-03 04:44:53,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:44:53,332 INFO L225 Difference]: With dead ends: 899 [2021-11-03 04:44:53,332 INFO L226 Difference]: Without dead ends: 540 [2021-11-03 04:44:53,333 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 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 04:44:53,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-11-03 04:44:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 381. [2021-11-03 04:44:53,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 365 states have (on average 1.2876712328767124) internal successors, (470), 380 states have internal predecessors, (470), 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 04:44:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 470 transitions. [2021-11-03 04:44:53,352 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 470 transitions. Word has length 56 [2021-11-03 04:44:53,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:44:53,352 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 470 transitions. [2021-11-03 04:44:53,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:44:53,353 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 470 transitions. [2021-11-03 04:44:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 04:44:53,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:44:53,355 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:53,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:44:53,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:44:53,580 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:44:53,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:44:53,582 INFO L85 PathProgramCache]: Analyzing trace with hash 711843647, now seen corresponding path program 1 times [2021-11-03 04:44:53,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:44:53,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249581644] [2021-11-03 04:44:53,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:44:53,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:44:53,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:44:53,594 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:44:53,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:44:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:44:57,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:44:57,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:44:58,403 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 04:44:58,760 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 04:44:58,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:44:58,986 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 04:44:59,474 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 04:44:59,474 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:44:59,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249581644] [2021-11-03 04:44:59,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249581644] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:44:59,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:44:59,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:44:59,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249647052] [2021-11-03 04:44:59,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:44:59,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:44:59,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:44:59,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:44:59,477 INFO L87 Difference]: Start difference. First operand 381 states and 470 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:45:32,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:45:32,935 INFO L93 Difference]: Finished difference Result 733 states and 908 transitions. [2021-11-03 04:45:32,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:45:32,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-03 04:45:32,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:45:32,957 INFO L225 Difference]: With dead ends: 733 [2021-11-03 04:45:32,957 INFO L226 Difference]: Without dead ends: 387 [2021-11-03 04:45:32,958 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:45:32,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-03 04:45:32,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2021-11-03 04:45:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 367 states have (on average 1.2861035422343323) internal successors, (472), 382 states have internal predecessors, (472), 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 04:45:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 472 transitions. [2021-11-03 04:45:32,972 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 472 transitions. Word has length 59 [2021-11-03 04:45:32,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:45:32,972 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 472 transitions. [2021-11-03 04:45:32,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:45:32,972 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 472 transitions. [2021-11-03 04:45:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 04:45:32,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:45:32,976 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 04:45:33,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:45:33,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:45:33,188 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:45:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:45:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1532139651, now seen corresponding path program 1 times [2021-11-03 04:45:33,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:45:33,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608842148] [2021-11-03 04:45:33,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:45:33,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:45:33,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:45:33,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:45:33,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:45:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:45:37,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:45:37,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:45:37,724 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 04:45:37,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:45:38,108 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 04:45:38,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:45:38,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608842148] [2021-11-03 04:45:38,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608842148] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:45:38,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:45:38,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:45:38,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940391758] [2021-11-03 04:45:38,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:45:38,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:45:38,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:45:38,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:45:38,113 INFO L87 Difference]: Start difference. First operand 383 states and 472 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:45:40,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:45:40,496 INFO L93 Difference]: Finished difference Result 732 states and 906 transitions. [2021-11-03 04:45:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:45:40,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-03 04:45:40,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:45:40,500 INFO L225 Difference]: With dead ends: 732 [2021-11-03 04:45:40,500 INFO L226 Difference]: Without dead ends: 381 [2021-11-03 04:45:40,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 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 04:45:40,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-03 04:45:40,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-11-03 04:45:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 365 states have (on average 1.2821917808219179) internal successors, (468), 380 states have internal predecessors, (468), 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 04:45:40,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 468 transitions. [2021-11-03 04:45:40,515 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 468 transitions. Word has length 59 [2021-11-03 04:45:40,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:45:40,516 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 468 transitions. [2021-11-03 04:45:40,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:45:40,516 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 468 transitions. [2021-11-03 04:45:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 04:45:40,517 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:45:40,517 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] [2021-11-03 04:45:40,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:45:40,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:45:40,732 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:45:40,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:45:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1629276988, now seen corresponding path program 1 times [2021-11-03 04:45:40,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:45:40,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138282401] [2021-11-03 04:45:40,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:45:40,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:45:40,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:45:40,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:45:40,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:45:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:45:44,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:45:44,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:45:45,430 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 04:45:45,559 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 04:45:45,766 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 04:45:45,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:45:46,007 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 04:45:46,473 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 04:45:46,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:45:46,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138282401] [2021-11-03 04:45:46,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138282401] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:45:46,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:45:46,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:45:46,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606214579] [2021-11-03 04:45:46,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:45:46,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:45:46,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:45:46,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:45:46,476 INFO L87 Difference]: Start difference. First operand 381 states and 468 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 04:46:22,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:22,743 INFO L93 Difference]: Finished difference Result 728 states and 899 transitions. [2021-11-03 04:46:22,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:46:22,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 61 [2021-11-03 04:46:22,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:22,767 INFO L225 Difference]: With dead ends: 728 [2021-11-03 04:46:22,767 INFO L226 Difference]: Without dead ends: 381 [2021-11-03 04:46:22,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:46:22,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-03 04:46:22,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2021-11-03 04:46:22,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 365 states have (on average 1.2794520547945205) internal successors, (467), 380 states have internal predecessors, (467), 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 04:46:22,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 467 transitions. [2021-11-03 04:46:22,780 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 467 transitions. Word has length 61 [2021-11-03 04:46:22,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:22,780 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 467 transitions. [2021-11-03 04:46:22,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 04:46:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 467 transitions. [2021-11-03 04:46:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:46:22,781 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:22,782 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 04:46:22,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:23,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:23,005 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:46:23,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:23,006 INFO L85 PathProgramCache]: Analyzing trace with hash -76393491, now seen corresponding path program 1 times [2021-11-03 04:46:23,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:23,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405151042] [2021-11-03 04:46:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:23,017 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:23,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:23,020 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:23,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:46:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:27,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1746 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:46:27,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:27,596 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 04:46:27,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:27,752 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 04:46:27,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:27,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405151042] [2021-11-03 04:46:27,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405151042] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:27,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:27,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:46:27,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249779266] [2021-11-03 04:46:27,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:46:27,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:46:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:46:27,755 INFO L87 Difference]: Start difference. First operand 381 states and 467 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 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 04:46:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:28,044 INFO L93 Difference]: Finished difference Result 1029 states and 1276 transitions. [2021-11-03 04:46:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:46:28,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 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 04:46:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:28,053 INFO L225 Difference]: With dead ends: 1029 [2021-11-03 04:46:28,054 INFO L226 Difference]: Without dead ends: 706 [2021-11-03 04:46:28,054 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 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 04:46:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-11-03 04:46:28,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 383. [2021-11-03 04:46:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 367 states have (on average 1.2779291553133516) internal successors, (469), 382 states have internal predecessors, (469), 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 04:46:28,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 469 transitions. [2021-11-03 04:46:28,074 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 469 transitions. Word has length 62 [2021-11-03 04:46:28,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:28,075 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 469 transitions. [2021-11-03 04:46:28,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 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 04:46:28,075 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 469 transitions. [2021-11-03 04:46:28,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:46:28,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:28,076 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 04:46:28,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:28,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:28,291 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:46:28,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash 603664879, now seen corresponding path program 1 times [2021-11-03 04:46:28,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:28,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768128301] [2021-11-03 04:46:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:28,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:28,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:28,297 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:28,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:46:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:32,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1743 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:46:32,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:32,916 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 04:46:32,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:33,047 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 04:46:33,047 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:33,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768128301] [2021-11-03 04:46:33,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768128301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:33,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:33,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:46:33,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999372241] [2021-11-03 04:46:33,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:46:33,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:33,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:46:33,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:46:33,049 INFO L87 Difference]: Start difference. First operand 383 states and 469 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 04:46:38,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:38,473 INFO L93 Difference]: Finished difference Result 901 states and 1114 transitions. [2021-11-03 04:46:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:46:38,474 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 04:46:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:38,479 INFO L225 Difference]: With dead ends: 901 [2021-11-03 04:46:38,479 INFO L226 Difference]: Without dead ends: 573 [2021-11-03 04:46:38,480 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 04:46:38,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-11-03 04:46:38,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 383. [2021-11-03 04:46:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 367 states have (on average 1.2643051771117166) internal successors, (464), 382 states have internal predecessors, (464), 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 04:46:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 464 transitions. [2021-11-03 04:46:38,502 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 464 transitions. Word has length 62 [2021-11-03 04:46:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:38,502 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 464 transitions. [2021-11-03 04:46:38,502 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 04:46:38,502 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 464 transitions. [2021-11-03 04:46:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:46:38,503 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:38,503 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] [2021-11-03 04:46:38,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:38,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:38,716 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:46:38,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1195786181, now seen corresponding path program 1 times [2021-11-03 04:46:38,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:38,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803264518] [2021-11-03 04:46:38,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:38,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:38,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:38,753 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:38,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:46:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:43,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 04:46:43,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:43,425 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 04:46:43,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:43,572 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 04:46:43,573 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:43,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803264518] [2021-11-03 04:46:43,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803264518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:43,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:43,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:46:43,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410129036] [2021-11-03 04:46:43,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:46:43,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:43,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:46:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:46:43,575 INFO L87 Difference]: Start difference. First operand 383 states and 464 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 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 04:46:44,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:44,095 INFO L93 Difference]: Finished difference Result 586 states and 735 transitions. [2021-11-03 04:46:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:46:44,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 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 63 [2021-11-03 04:46:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:44,100 INFO L225 Difference]: With dead ends: 586 [2021-11-03 04:46:44,100 INFO L226 Difference]: Without dead ends: 580 [2021-11-03 04:46:44,100 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:46:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-11-03 04:46:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 377. [2021-11-03 04:46:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 364 states have (on average 1.2582417582417582) internal successors, (458), 376 states have internal predecessors, (458), 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 04:46:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 458 transitions. [2021-11-03 04:46:44,121 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 458 transitions. Word has length 63 [2021-11-03 04:46:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:44,122 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 458 transitions. [2021-11-03 04:46:44,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 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 04:46:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 458 transitions. [2021-11-03 04:46:44,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 04:46:44,123 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:44,123 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 04:46:44,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:44,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:44,339 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:46:44,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:44,340 INFO L85 PathProgramCache]: Analyzing trace with hash -531476485, now seen corresponding path program 1 times [2021-11-03 04:46:44,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:44,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415114922] [2021-11-03 04:46:44,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:44,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:44,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:44,343 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:44,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:46:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:48,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1769 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:46:48,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:48,937 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 04:46:48,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:49,126 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 04:46:49,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:49,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415114922] [2021-11-03 04:46:49,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415114922] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:49,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:49,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:46:49,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001360564] [2021-11-03 04:46:49,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:46:49,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:46:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:46:49,129 INFO L87 Difference]: Start difference. First operand 377 states and 458 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 04:46:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:50,034 INFO L93 Difference]: Finished difference Result 1545 states and 1959 transitions. [2021-11-03 04:46:50,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:46:50,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 04:46:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:50,043 INFO L225 Difference]: With dead ends: 1545 [2021-11-03 04:46:50,044 INFO L226 Difference]: Without dead ends: 1543 [2021-11-03 04:46:50,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:46:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2021-11-03 04:46:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 375. [2021-11-03 04:46:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 363 states have (on average 1.256198347107438) internal successors, (456), 374 states have internal predecessors, (456), 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 04:46:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 456 transitions. [2021-11-03 04:46:50,077 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 456 transitions. Word has length 70 [2021-11-03 04:46:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:50,078 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 456 transitions. [2021-11-03 04:46:50,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 04:46:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 456 transitions. [2021-11-03 04:46:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 04:46:50,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:50,079 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] [2021-11-03 04:46:50,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:46:50,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:50,295 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:46:50,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:50,295 INFO L85 PathProgramCache]: Analyzing trace with hash 185250899, now seen corresponding path program 1 times [2021-11-03 04:46:50,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:50,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505649378] [2021-11-03 04:46:50,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:50,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:50,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:50,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:50,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:46:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:46:54,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:46:54,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:46:55,137 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 04:46:55,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:46:55,352 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 04:46:55,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:46:55,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505649378] [2021-11-03 04:46:55,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505649378] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:46:55,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:46:55,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:46:55,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256043215] [2021-11-03 04:46:55,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:46:55,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:46:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:46:55,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:46:55,354 INFO L87 Difference]: Start difference. First operand 375 states and 456 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 04:46:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:46:55,677 INFO L93 Difference]: Finished difference Result 803 states and 994 transitions. [2021-11-03 04:46:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:46:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 77 [2021-11-03 04:46:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:46:55,682 INFO L225 Difference]: With dead ends: 803 [2021-11-03 04:46:55,682 INFO L226 Difference]: Without dead ends: 762 [2021-11-03 04:46:55,683 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:46:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-11-03 04:46:55,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 377. [2021-11-03 04:46:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.2547945205479452) internal successors, (458), 376 states have internal predecessors, (458), 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 04:46:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 458 transitions. [2021-11-03 04:46:55,711 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 458 transitions. Word has length 77 [2021-11-03 04:46:55,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:46:55,711 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 458 transitions. [2021-11-03 04:46:55,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 04:46:55,712 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 458 transitions. [2021-11-03 04:46:55,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 04:46:55,713 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:46:55,713 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] [2021-11-03 04:46:55,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-03 04:46:55,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:46:55,928 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:46:55,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:46:55,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1368735462, now seen corresponding path program 1 times [2021-11-03 04:46:55,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:46:55,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169848968] [2021-11-03 04:46:55,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:46:55,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:46:55,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:46:55,944 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:46:55,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:47:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:47:00,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 04:47:00,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:47:01,360 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 04:47:01,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:47:02,021 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 04:47:02,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:47:02,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169848968] [2021-11-03 04:47:02,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169848968] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:47:02,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:47:02,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-03 04:47:02,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57030730] [2021-11-03 04:47:02,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:47:02,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:47:02,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:47:02,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:47:02,023 INFO L87 Difference]: Start difference. First operand 377 states and 458 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 04:47:04,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:47:04,846 INFO L93 Difference]: Finished difference Result 1136 states and 1411 transitions. [2021-11-03 04:47:04,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:47:04,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 77 [2021-11-03 04:47:04,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:47:04,853 INFO L225 Difference]: With dead ends: 1136 [2021-11-03 04:47:04,853 INFO L226 Difference]: Without dead ends: 851 [2021-11-03 04:47:04,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:47:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-11-03 04:47:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 389. [2021-11-03 04:47:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 377 states have (on average 1.257294429708223) internal successors, (474), 388 states have internal predecessors, (474), 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 04:47:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 474 transitions. [2021-11-03 04:47:04,892 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 474 transitions. Word has length 77 [2021-11-03 04:47:04,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:47:04,893 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 474 transitions. [2021-11-03 04:47:04,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 04:47:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 474 transitions. [2021-11-03 04:47:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 04:47:04,894 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:47:04,894 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] [2021-11-03 04:47:04,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 04:47:05,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:47:05,114 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:47:05,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:47:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash 575211757, now seen corresponding path program 1 times [2021-11-03 04:47:05,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:47:05,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720682615] [2021-11-03 04:47:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:47:05,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:47:05,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:47:05,130 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:47:05,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:47:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:47:10,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:47:10,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:47:10,584 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 04:47:10,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:47:10,953 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 04:47:10,953 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:47:10,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720682615] [2021-11-03 04:47:10,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720682615] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:47:10,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:47:10,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-03 04:47:10,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561946771] [2021-11-03 04:47:10,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:47:10,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:47:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:47:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:47:10,955 INFO L87 Difference]: Start difference. First operand 389 states and 474 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 04:47:36,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:47:36,225 INFO L93 Difference]: Finished difference Result 1073 states and 1329 transitions. [2021-11-03 04:47:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:47:36,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 78 [2021-11-03 04:47:36,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:47:36,247 INFO L225 Difference]: With dead ends: 1073 [2021-11-03 04:47:36,247 INFO L226 Difference]: Without dead ends: 813 [2021-11-03 04:47:36,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:47:36,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2021-11-03 04:47:36,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 389. [2021-11-03 04:47:36,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 377 states have (on average 1.2519893899204244) internal successors, (472), 388 states have internal predecessors, (472), 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 04:47:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 472 transitions. [2021-11-03 04:47:36,294 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 472 transitions. Word has length 78 [2021-11-03 04:47:36,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:47:36,294 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 472 transitions. [2021-11-03 04:47:36,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 04:47:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 472 transitions. [2021-11-03 04:47:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 04:47:36,296 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:47:36,296 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:47:36,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:47:36,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:47:36,511 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:47:36,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:47:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash 653480191, now seen corresponding path program 1 times [2021-11-03 04:47:36,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:47:36,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743693471] [2021-11-03 04:47:36,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:47:36,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:47:36,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:47:36,517 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:47:36,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cb33ca-b1c0-49bd-b166-5241ed6b1b2c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:47:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:47:42,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 72 conjunts are in the unsatisfiable core [2021-11-03 04:47:42,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:48:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:48:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:48:44,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:48:44,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 102 [2021-11-03 04:48:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:48:44,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:48:44,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:48:44,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 70 [2021-11-03 04:48:49,279 INFO L354 Elim1Store]: treesize reduction 9360, result has 0.0 percent of original size [2021-11-03 04:48:49,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 40 select indices, 40 select index equivalence classes, 0 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 780 case distinctions, treesize of input 955 treesize of output 283 [2021-11-03 04:48:50,683 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 04:48:50,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:50:36,378 WARN L207 SmtUtils]: Spent 27.24 s on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-11-03 04:50:36,380 INFO L354 Elim1Store]: treesize reduction 76, result has 59.6 percent of original size [2021-11-03 04:50:36,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1814 treesize of output 1893 [2021-11-03 04:50:59,525 WARN L207 SmtUtils]: Spent 23.11 s on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-11-03 04:50:59,527 INFO L354 Elim1Store]: treesize reduction 76, result has 59.6 percent of original size [2021-11-03 04:50:59,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1893 treesize of output 1972