./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8 --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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:33:11,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:33:11,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:33:11,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:33:11,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:33:11,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:33:11,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:33:11,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:33:11,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:33:11,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:33:11,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:33:11,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:33:11,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:33:11,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:33:11,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:33:11,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:33:11,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:33:11,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:33:11,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:33:11,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:33:11,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:33:11,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:33:11,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:33:11,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:33:11,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:33:11,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:33:11,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:33:11,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:33:11,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:33:11,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:33:11,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:33:11,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:33:11,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:33:11,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:33:11,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:33:11,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:33:11,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:33:11,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:33:11,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:33:11,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:33:11,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:33:11,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:33:11,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:33:11,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:33:11,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:33:11,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:33:11,873 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:33:11,873 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:33:11,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:33:11,873 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:33:11,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:33:11,881 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:33:11,883 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:33:11,883 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:33:11,884 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:33:11,884 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:33:11,884 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:33:11,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:33:11,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:33:11,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:33:11,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:33:11,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:33:11,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:33:11,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:33:11,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:33:11,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:33:11,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:33:11,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:33:11,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:33:11,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:11,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:33:11,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:33:11,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:33:11,892 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:33:11,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:33:11,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:33:11,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:33:11,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:33:11,893 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_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2021-11-07 01:33:12,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:33:12,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:33:12,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:33:12,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:33:12,266 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:33:12,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-07 01:33:12,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/ba4e0b4c2/914cb186e5e24bc39f32b94e4abd9842/FLAG1b4f10092 [2021-11-07 01:33:13,356 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:33:13,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-07 01:33:13,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/ba4e0b4c2/914cb186e5e24bc39f32b94e4abd9842/FLAG1b4f10092 [2021-11-07 01:33:13,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/ba4e0b4c2/914cb186e5e24bc39f32b94e4abd9842 [2021-11-07 01:33:13,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:33:13,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:33:13,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:13,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:33:13,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:33:13,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:13" (1/1) ... [2021-11-07 01:33:13,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68077d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:13, skipping insertion in model container [2021-11-07 01:33:13,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:13" (1/1) ... [2021-11-07 01:33:13,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:33:13,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:14,269 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-07 01:33:14,277 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-07 01:33:14,305 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:33:14,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:33:15,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,467 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:15,971 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:33:15,973 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:33:15,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:33:15,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:33:15,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:33:15,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:33:15,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:33:15,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:33:15,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:33:15,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:33:16,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:33:16,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,410 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,449 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:16,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:16,537 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:33:16,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4a232db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:16, skipping insertion in model container [2021-11-07 01:33:16,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:16,540 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:33:16,543 INFO L168 Benchmark]: Toolchain (without parser) took 2797.97 ms. Allocated memory was 115.3 MB in the beginning and 151.0 MB in the end (delta: 35.7 MB). Free memory was 67.6 MB in the beginning and 105.9 MB in the end (delta: -38.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:33:16,544 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 115.3 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:33:16,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2793.54 ms. Allocated memory was 115.3 MB in the beginning and 151.0 MB in the end (delta: 35.7 MB). Free memory was 67.4 MB in the beginning and 105.9 MB in the end (delta: -38.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:33:16,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 115.3 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2793.54 ms. Allocated memory was 115.3 MB in the beginning and 151.0 MB in the end (delta: 35.7 MB). Free memory was 67.4 MB in the beginning and 105.9 MB in the end (delta: -38.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7039]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) 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_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8 --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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:33:19,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:33:19,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:33:19,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:33:19,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:33:19,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:33:19,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:33:19,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:33:19,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:33:19,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:33:19,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:33:19,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:33:19,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:33:19,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:33:19,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:33:19,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:33:19,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:33:19,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:33:19,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:33:19,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:33:19,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:33:19,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:33:19,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:33:19,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:33:19,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:33:19,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:33:19,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:33:19,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:33:19,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:33:19,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:33:19,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:33:19,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:33:19,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:33:19,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:33:19,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:33:19,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:33:19,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:33:19,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:33:19,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:33:19,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:33:19,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:33:19,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:33:19,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:33:19,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:33:19,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:33:19,450 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:33:19,451 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:33:19,451 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:33:19,451 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:33:19,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:33:19,451 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:33:19,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:33:19,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:33:19,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:33:19,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:33:19,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:33:19,456 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:33:19,456 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:33:19,456 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:33:19,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:33:19,456 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:33:19,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:33:19,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:33:19,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:33:19,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:33:19,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:19,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:33:19,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:33:19,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:33:19,459 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:33:19,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:33:19,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:33:19,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:33:19,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:33:19,460 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_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2021-11-07 01:33:19,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:33:19,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:33:19,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:33:19,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:33:19,968 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:33:19,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-07 01:33:20,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/5ec57b440/5bdc8b5ea0964a529dbb81169a9c9c9c/FLAG294015f97 [2021-11-07 01:33:21,106 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:33:21,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-07 01:33:21,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/5ec57b440/5bdc8b5ea0964a529dbb81169a9c9c9c/FLAG294015f97 [2021-11-07 01:33:21,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/data/5ec57b440/5bdc8b5ea0964a529dbb81169a9c9c9c [2021-11-07 01:33:21,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:33:21,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:33:21,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:21,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:33:21,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:33:21,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:21" (1/1) ... [2021-11-07 01:33:21,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602d2014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:21, skipping insertion in model container [2021-11-07 01:33:21,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:21" (1/1) ... [2021-11-07 01:33:21,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:33:21,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:21,994 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-07 01:33:22,002 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-07 01:33:22,032 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:33:22,046 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:33:23,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:33:23,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:33:23,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:33:23,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:33:23,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:33:23,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:33:23,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:33:23,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:33:23,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:33:23,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:33:23,872 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:33:23,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:23,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,041 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,059 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:24,150 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:33:24,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:24,220 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-07 01:33:24,221 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-07 01:33:24,226 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:33:24,229 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:33:24,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,356 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:33:24,456 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:33:24,458 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:33:24,459 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:33:24,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:33:24,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:33:24,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:33:24,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:33:24,469 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:33:24,470 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:33:24,504 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:33:24,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:24,702 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:33:24,734 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-07 01:33:24,735 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_fadc0787-04a5-4289-8453-bccfdd73c847/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-07 01:33:24,737 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:33:24,742 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:33:24,816 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,817 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,817 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,829 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:33:24,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:33:24,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:33:24,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:33:24,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:33:24,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:33:24,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:33:24,885 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:33:24,886 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:33:24,886 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:33:24,917 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:33:24,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:24,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,029 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,050 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,064 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:25,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:25,512 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:33:25,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25 WrapperNode [2021-11-07 01:33:25,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:25,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:33:25,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:33:25,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:33:25,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:25,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:25,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:33:25,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:33:25,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:33:25,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:33:25,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:25,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:26,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:26,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:26,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:26,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:26,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:26,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:33:26,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:33:26,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:33:26,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:33:26,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (1/1) ... [2021-11-07 01:33:26,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:26,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:33:26,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:33:26,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:33:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:33:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:33:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:33:26,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:33:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:33:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:33:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:33:26,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:33:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:33:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:33:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:33:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:33:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:33:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:33:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:33:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:33:54,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:33:54,914 INFO L299 CfgBuilder]: Removed 788 assume(true) statements. [2021-11-07 01:33:54,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:54 BoogieIcfgContainer [2021-11-07 01:33:54,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:33:54,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:33:54,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:33:54,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:33:54,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:33:21" (1/3) ... [2021-11-07 01:33:54,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e79a28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:54, skipping insertion in model container [2021-11-07 01:33:54,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:25" (2/3) ... [2021-11-07 01:33:54,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e79a28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:54, skipping insertion in model container [2021-11-07 01:33:54,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:54" (3/3) ... [2021-11-07 01:33:54,930 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2021-11-07 01:33:54,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:33:54,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-11-07 01:33:55,009 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:33:55,017 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 [2021-11-07 01:33:55,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-11-07 01:33:55,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 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) [2021-11-07 01:33:55,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:33:55,086 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:55,087 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] [2021-11-07 01:33:55,087 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:33:55,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:55,094 INFO L85 PathProgramCache]: Analyzing trace with hash -97697725, now seen corresponding path program 1 times [2021-11-07 01:33:55,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:55,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742122968] [2021-11-07 01:33:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:55,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:55,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:55,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:55,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:33:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:59,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:33:59,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:00,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:00,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:00,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742122968] [2021-11-07 01:34:00,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742122968] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:00,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:00,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:34:00,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354011463] [2021-11-07 01:34:00,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:34:00,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:00,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:34:00,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:34:00,357 INFO L87 Difference]: Start difference. First operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:00,477 INFO L93 Difference]: Finished difference Result 1982 states and 2759 transitions. [2021-11-07 01:34:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:34:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 01:34:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:00,506 INFO L225 Difference]: With dead ends: 1982 [2021-11-07 01:34:00,506 INFO L226 Difference]: Without dead ends: 989 [2021-11-07 01:34:00,516 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:34:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2021-11-07 01:34:00,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2021-11-07 01:34:00,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3246887966804979) internal successors, (1277), 988 states have internal predecessors, (1277), 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) [2021-11-07 01:34:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1277 transitions. [2021-11-07 01:34:00,633 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1277 transitions. Word has length 42 [2021-11-07 01:34:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:00,633 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1277 transitions. [2021-11-07 01:34:00,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1277 transitions. [2021-11-07 01:34:00,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:34:00,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:00,637 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] [2021-11-07 01:34:00,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:00,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:00,838 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:34:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:00,839 INFO L85 PathProgramCache]: Analyzing trace with hash 268775359, now seen corresponding path program 1 times [2021-11-07 01:34:00,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:00,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999344290] [2021-11-07 01:34:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:00,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:00,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:00,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:00,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:34:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:05,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:34:05,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:05,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:05,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:06,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:06,242 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:06,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999344290] [2021-11-07 01:34:06,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999344290] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:06,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:06,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:34:06,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796192702] [2021-11-07 01:34:06,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:06,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:06,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:06,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:06,247 INFO L87 Difference]: Start difference. First operand 989 states and 1277 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:06,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:06,593 INFO L93 Difference]: Finished difference Result 2111 states and 2719 transitions. [2021-11-07 01:34:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:34:06,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 01:34:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:06,603 INFO L225 Difference]: With dead ends: 2111 [2021-11-07 01:34:06,604 INFO L226 Difference]: Without dead ends: 1202 [2021-11-07 01:34:06,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:06,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-11-07 01:34:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 989. [2021-11-07 01:34:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3215767634854771) internal successors, (1274), 988 states have internal predecessors, (1274), 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) [2021-11-07 01:34:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1274 transitions. [2021-11-07 01:34:06,667 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1274 transitions. Word has length 42 [2021-11-07 01:34:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:06,667 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1274 transitions. [2021-11-07 01:34:06,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:06,668 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1274 transitions. [2021-11-07 01:34:06,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 01:34:06,679 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:06,679 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] [2021-11-07 01:34:06,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:06,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:06,904 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:34:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash 82325853, now seen corresponding path program 1 times [2021-11-07 01:34:06,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:06,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891125322] [2021-11-07 01:34:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:06,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:06,915 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:06,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:34:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:11,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:34:11,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:12,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:12,409 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:12,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891125322] [2021-11-07 01:34:12,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891125322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:12,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:12,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:34:12,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529728946] [2021-11-07 01:34:12,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:34:12,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:34:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:12,412 INFO L87 Difference]: Start difference. First operand 989 states and 1274 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-07 01:34:17,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:17,218 INFO L93 Difference]: Finished difference Result 2206 states and 2835 transitions. [2021-11-07 01:34:17,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:34:17,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2021-11-07 01:34:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:17,228 INFO L225 Difference]: With dead ends: 2206 [2021-11-07 01:34:17,228 INFO L226 Difference]: Without dead ends: 1265 [2021-11-07 01:34:17,230 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:34:17,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2021-11-07 01:34:17,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 989. [2021-11-07 01:34:17,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3184647302904564) internal successors, (1271), 988 states have internal predecessors, (1271), 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) [2021-11-07 01:34:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1271 transitions. [2021-11-07 01:34:17,277 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1271 transitions. Word has length 50 [2021-11-07 01:34:17,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:17,278 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1271 transitions. [2021-11-07 01:34:17,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-07 01:34:17,279 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1271 transitions. [2021-11-07 01:34:17,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:34:17,281 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:17,282 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] [2021-11-07 01:34:17,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:17,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:17,500 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:34:17,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1376076053, now seen corresponding path program 1 times [2021-11-07 01:34:17,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:17,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37155752] [2021-11-07 01:34:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:17,505 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:17,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:17,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:34:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:22,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:34:22,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:23,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:23,507 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:23,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37155752] [2021-11-07 01:34:23,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37155752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:23,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:23,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:34:23,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568851585] [2021-11-07 01:34:23,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:34:23,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:23,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:34:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:23,510 INFO L87 Difference]: Start difference. First operand 989 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2021-11-07 01:34:24,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:24,509 INFO L93 Difference]: Finished difference Result 2802 states and 3579 transitions. [2021-11-07 01:34:24,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:34:24,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2021-11-07 01:34:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:24,528 INFO L225 Difference]: With dead ends: 2802 [2021-11-07 01:34:24,528 INFO L226 Difference]: Without dead ends: 1892 [2021-11-07 01:34:24,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:34:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2021-11-07 01:34:24,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 989. [2021-11-07 01:34:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3153526970954357) internal successors, (1268), 988 states have internal predecessors, (1268), 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) [2021-11-07 01:34:24,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1268 transitions. [2021-11-07 01:34:24,590 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1268 transitions. Word has length 66 [2021-11-07 01:34:24,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:24,592 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1268 transitions. [2021-11-07 01:34:24,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2021-11-07 01:34:24,593 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1268 transitions. [2021-11-07 01:34:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 01:34:24,596 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:24,596 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:24,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:24,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:24,820 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:34:24,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:24,821 INFO L85 PathProgramCache]: Analyzing trace with hash 726765177, now seen corresponding path program 1 times [2021-11-07 01:34:24,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:24,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541425038] [2021-11-07 01:34:24,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:24,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:24,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:24,829 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:24,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:34:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:30,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:34:30,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:30,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:31,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:31,448 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:31,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541425038] [2021-11-07 01:34:31,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541425038] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:31,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:31,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 01:34:31,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745402691] [2021-11-07 01:34:31,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:34:31,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:31,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:34:31,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:34:31,451 INFO L87 Difference]: Start difference. First operand 989 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 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) [2021-11-07 01:34:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:37,662 INFO L93 Difference]: Finished difference Result 3878 states and 4916 transitions. [2021-11-07 01:34:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:34:37,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-07 01:34:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:37,683 INFO L225 Difference]: With dead ends: 3878 [2021-11-07 01:34:37,684 INFO L226 Difference]: Without dead ends: 2952 [2021-11-07 01:34:37,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:34:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-11-07 01:34:37,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 989. [2021-11-07 01:34:37,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.312240663900415) internal successors, (1265), 988 states have internal predecessors, (1265), 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) [2021-11-07 01:34:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1265 transitions. [2021-11-07 01:34:37,766 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1265 transitions. Word has length 90 [2021-11-07 01:34:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:37,767 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1265 transitions. [2021-11-07 01:34:37,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 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) [2021-11-07 01:34:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1265 transitions. [2021-11-07 01:34:37,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-07 01:34:37,769 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:37,769 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:37,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:37,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:37,992 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:34:37,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:37,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1774462527, now seen corresponding path program 1 times [2021-11-07 01:34:37,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:37,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802519529] [2021-11-07 01:34:37,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:37,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:37,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:37,999 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:38,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:34:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:43,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1879 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:34:43,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:44,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:44,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:44,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:44,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802519529] [2021-11-07 01:34:44,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802519529] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:44,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:44,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:34:44,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585662814] [2021-11-07 01:34:44,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:34:44,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:44,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:34:44,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:44,527 INFO L87 Difference]: Start difference. First operand 989 states and 1265 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-07 01:34:45,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:45,573 INFO L93 Difference]: Finished difference Result 2732 states and 3487 transitions. [2021-11-07 01:34:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:34:45,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 106 [2021-11-07 01:34:45,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:45,586 INFO L225 Difference]: With dead ends: 2732 [2021-11-07 01:34:45,586 INFO L226 Difference]: Without dead ends: 1821 [2021-11-07 01:34:45,589 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:34:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2021-11-07 01:34:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1025. [2021-11-07 01:34:45,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1000 states have (on average 1.313) internal successors, (1313), 1024 states have internal predecessors, (1313), 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) [2021-11-07 01:34:45,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1313 transitions. [2021-11-07 01:34:45,659 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1313 transitions. Word has length 106 [2021-11-07 01:34:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:45,660 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1313 transitions. [2021-11-07 01:34:45,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-07 01:34:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1313 transitions. [2021-11-07 01:34:45,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-07 01:34:45,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:45,662 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:45,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:45,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:45,888 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:34:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1841232515, now seen corresponding path program 1 times [2021-11-07 01:34:45,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:45,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127794274] [2021-11-07 01:34:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:45,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:45,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:45,895 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:45,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:34:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:51,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:34:51,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:52,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:53,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:53,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127794274] [2021-11-07 01:34:53,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127794274] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:53,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:53,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:34:53,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139053720] [2021-11-07 01:34:53,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:34:53,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:53,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:34:53,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:34:53,369 INFO L87 Difference]: Start difference. First operand 1025 states and 1313 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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) [2021-11-07 01:36:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:36:39,088 INFO L93 Difference]: Finished difference Result 2737 states and 3490 transitions. [2021-11-07 01:36:39,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:36:39,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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 106 [2021-11-07 01:36:39,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:36:39,101 INFO L225 Difference]: With dead ends: 2737 [2021-11-07 01:36:39,102 INFO L226 Difference]: Without dead ends: 1787 [2021-11-07 01:36:39,104 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:36:39,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2021-11-07 01:36:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1025. [2021-11-07 01:36:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1000 states have (on average 1.307) internal successors, (1307), 1024 states have internal predecessors, (1307), 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) [2021-11-07 01:36:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1307 transitions. [2021-11-07 01:36:39,189 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1307 transitions. Word has length 106 [2021-11-07 01:36:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:36:39,189 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1307 transitions. [2021-11-07 01:36:39,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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) [2021-11-07 01:36:39,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1307 transitions. [2021-11-07 01:36:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-07 01:36:39,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:36:39,192 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:36:39,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:36:39,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:36:39,408 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:36:39,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:36:39,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1225407999, now seen corresponding path program 1 times [2021-11-07 01:36:39,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:36:39,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928212843] [2021-11-07 01:36:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:36:39,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:36:39,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:36:39,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:36:39,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:36:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:36:45,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:36:45,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:36:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:36:46,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:36:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:36:47,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:36:47,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928212843] [2021-11-07 01:36:47,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928212843] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:36:47,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:36:47,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 01:36:47,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251494671] [2021-11-07 01:36:47,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:36:47,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:36:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:36:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:36:47,329 INFO L87 Difference]: Start difference. First operand 1025 states and 1307 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) [2021-11-07 01:39:07,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:07,622 INFO L93 Difference]: Finished difference Result 2743 states and 3484 transitions. [2021-11-07 01:39:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:39:07,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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 106 [2021-11-07 01:39:07,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:07,635 INFO L225 Difference]: With dead ends: 2743 [2021-11-07 01:39:07,636 INFO L226 Difference]: Without dead ends: 1793 [2021-11-07 01:39:07,638 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:39:07,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2021-11-07 01:39:07,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1037. [2021-11-07 01:39:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1012 states have (on average 1.2974308300395256) internal successors, (1313), 1036 states have internal predecessors, (1313), 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) [2021-11-07 01:39:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1313 transitions. [2021-11-07 01:39:07,717 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1313 transitions. Word has length 106 [2021-11-07 01:39:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:07,717 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 1313 transitions. [2021-11-07 01:39:07,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) [2021-11-07 01:39:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1313 transitions. [2021-11-07 01:39:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-07 01:39:07,719 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:07,719 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:07,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:07,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:39:07,936 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:39:07,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:07,937 INFO L85 PathProgramCache]: Analyzing trace with hash -335007621, now seen corresponding path program 1 times [2021-11-07 01:39:07,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:39:07,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608179294] [2021-11-07 01:39:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:07,941 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:39:07,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:39:07,942 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:39:07,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:39:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:13,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 01:39:13,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:14,929 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 40 treesize of output 28 [2021-11-07 01:39:14,940 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 25 treesize of output 13 [2021-11-07 01:39:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:15,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:18,094 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:18,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-07 01:39:18,162 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-07 01:39:18,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-07 01:39:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:18,694 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:39:18,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608179294] [2021-11-07 01:39:18,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608179294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:39:18,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:39:18,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-11-07 01:39:18,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056724605] [2021-11-07 01:39:18,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:39:18,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:39:18,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:39:18,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:39:18,696 INFO L87 Difference]: Start difference. First operand 1037 states and 1313 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 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) [2021-11-07 01:40:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:49,371 INFO L93 Difference]: Finished difference Result 6077 states and 7672 transitions. [2021-11-07 01:40:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 01:40:49,373 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 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 106 [2021-11-07 01:40:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:49,408 INFO L225 Difference]: With dead ends: 6077 [2021-11-07 01:40:49,408 INFO L226 Difference]: Without dead ends: 5144 [2021-11-07 01:40:49,412 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2021-11-07 01:40:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2021-11-07 01:40:49,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 1045. [2021-11-07 01:40:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1020 states have (on average 1.2950980392156863) internal successors, (1321), 1044 states have internal predecessors, (1321), 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) [2021-11-07 01:40:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1321 transitions. [2021-11-07 01:40:49,536 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1321 transitions. Word has length 106 [2021-11-07 01:40:49,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:49,536 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 1321 transitions. [2021-11-07 01:40:49,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 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) [2021-11-07 01:40:49,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1321 transitions. [2021-11-07 01:40:49,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-07 01:40:49,538 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:49,538 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:49,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:49,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:49,755 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:40:49,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:49,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1027709372, now seen corresponding path program 1 times [2021-11-07 01:40:49,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:49,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940747234] [2021-11-07 01:40:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:49,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:49,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:49,760 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:49,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:40:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:55,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:40:55,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:55,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:55,647 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:40:55,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940747234] [2021-11-07 01:40:55,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940747234] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:40:55,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:40:55,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:40:55,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989135109] [2021-11-07 01:40:55,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:40:55,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:40:55,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:40:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:55,649 INFO L87 Difference]: Start difference. First operand 1045 states and 1321 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2021-11-07 01:40:55,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:55,857 INFO L93 Difference]: Finished difference Result 2193 states and 2783 transitions. [2021-11-07 01:40:55,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:40:55,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 108 [2021-11-07 01:40:55,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:55,868 INFO L225 Difference]: With dead ends: 2193 [2021-11-07 01:40:55,868 INFO L226 Difference]: Without dead ends: 2055 [2021-11-07 01:40:55,869 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:55,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-11-07 01:40:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1050. [2021-11-07 01:40:55,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.293658536585366) internal successors, (1326), 1049 states have internal predecessors, (1326), 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) [2021-11-07 01:40:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1326 transitions. [2021-11-07 01:40:55,968 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1326 transitions. Word has length 108 [2021-11-07 01:40:55,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:55,968 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1326 transitions. [2021-11-07 01:40:55,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2021-11-07 01:40:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1326 transitions. [2021-11-07 01:40:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 01:40:55,970 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:55,970 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:56,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:56,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:56,188 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:40:56,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:56,189 INFO L85 PathProgramCache]: Analyzing trace with hash 64676664, now seen corresponding path program 1 times [2021-11-07 01:40:56,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:56,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393409087] [2021-11-07 01:40:56,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:56,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:56,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:56,195 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:56,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:41:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:01,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:41:01,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:02,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:03,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:03,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393409087] [2021-11-07 01:41:03,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393409087] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:03,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:03,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:41:03,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341637368] [2021-11-07 01:41:03,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:41:03,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:03,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:41:03,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:41:03,092 INFO L87 Difference]: Start difference. First operand 1050 states and 1326 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2021-11-07 01:41:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:03,557 INFO L93 Difference]: Finished difference Result 2136 states and 2704 transitions. [2021-11-07 01:41:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:41:03,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 110 [2021-11-07 01:41:03,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:03,562 INFO L225 Difference]: With dead ends: 2136 [2021-11-07 01:41:03,562 INFO L226 Difference]: Without dead ends: 1264 [2021-11-07 01:41:03,564 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:41:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2021-11-07 01:41:03,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1050. [2021-11-07 01:41:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2917073170731708) internal successors, (1324), 1049 states have internal predecessors, (1324), 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) [2021-11-07 01:41:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1324 transitions. [2021-11-07 01:41:03,659 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1324 transitions. Word has length 110 [2021-11-07 01:41:03,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:03,660 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1324 transitions. [2021-11-07 01:41:03,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2021-11-07 01:41:03,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1324 transitions. [2021-11-07 01:41:03,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 01:41:03,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:03,662 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:03,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:03,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:03,884 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:41:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2058054553, now seen corresponding path program 1 times [2021-11-07 01:41:03,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:03,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379241184] [2021-11-07 01:41:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:03,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:03,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:03,889 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:03,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:41:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:09,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:41:09,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:10,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:11,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:11,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379241184] [2021-11-07 01:41:11,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379241184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:11,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:11,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:41:11,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183381435] [2021-11-07 01:41:11,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:41:11,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:41:11,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:41:11,072 INFO L87 Difference]: Start difference. First operand 1050 states and 1324 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2021-11-07 01:41:14,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:14,988 INFO L93 Difference]: Finished difference Result 2176 states and 2748 transitions. [2021-11-07 01:41:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:41:14,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 114 [2021-11-07 01:41:14,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:14,995 INFO L225 Difference]: With dead ends: 2176 [2021-11-07 01:41:14,995 INFO L226 Difference]: Without dead ends: 1304 [2021-11-07 01:41:14,997 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:41:14,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2021-11-07 01:41:15,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1050. [2021-11-07 01:41:15,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2878048780487805) internal successors, (1320), 1049 states have internal predecessors, (1320), 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) [2021-11-07 01:41:15,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1320 transitions. [2021-11-07 01:41:15,097 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1320 transitions. Word has length 114 [2021-11-07 01:41:15,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:15,098 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1320 transitions. [2021-11-07 01:41:15,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2021-11-07 01:41:15,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1320 transitions. [2021-11-07 01:41:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 01:41:15,100 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:15,100 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:15,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:15,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:15,320 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:41:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:15,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1877694083, now seen corresponding path program 1 times [2021-11-07 01:41:15,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:15,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186007483] [2021-11-07 01:41:15,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:15,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:15,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:15,327 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:15,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:41:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:21,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:41:21,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:22,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:22,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:23,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:23,114 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:23,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186007483] [2021-11-07 01:41:23,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186007483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:23,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:23,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:41:23,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347010775] [2021-11-07 01:41:23,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:41:23,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:23,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:41:23,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:41:23,116 INFO L87 Difference]: Start difference. First operand 1050 states and 1320 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2021-11-07 01:41:24,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:24,149 INFO L93 Difference]: Finished difference Result 2416 states and 3043 transitions. [2021-11-07 01:41:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:41:24,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 122 [2021-11-07 01:41:24,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:24,156 INFO L225 Difference]: With dead ends: 2416 [2021-11-07 01:41:24,156 INFO L226 Difference]: Without dead ends: 1544 [2021-11-07 01:41:24,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:41:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2021-11-07 01:41:24,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1050. [2021-11-07 01:41:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2858536585365854) internal successors, (1318), 1049 states have internal predecessors, (1318), 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) [2021-11-07 01:41:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1318 transitions. [2021-11-07 01:41:24,254 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1318 transitions. Word has length 122 [2021-11-07 01:41:24,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:24,254 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1318 transitions. [2021-11-07 01:41:24,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2021-11-07 01:41:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1318 transitions. [2021-11-07 01:41:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-07 01:41:24,256 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:24,257 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:24,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-07 01:41:24,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:24,472 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:41:24,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1389825570, now seen corresponding path program 1 times [2021-11-07 01:41:24,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:24,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658097554] [2021-11-07 01:41:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:24,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:24,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:24,478 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:24,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 01:41:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:30,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:41:30,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:31,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:32,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:32,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658097554] [2021-11-07 01:41:32,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658097554] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:32,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:32,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 01:41:32,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820278645] [2021-11-07 01:41:32,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:41:32,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:32,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:41:32,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:41:32,920 INFO L87 Difference]: Start difference. First operand 1050 states and 1318 transitions. Second operand has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 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) [2021-11-07 01:41:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:37,002 INFO L93 Difference]: Finished difference Result 2191 states and 2762 transitions. [2021-11-07 01:41:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:41:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 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 129 [2021-11-07 01:41:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:37,009 INFO L225 Difference]: With dead ends: 2191 [2021-11-07 01:41:37,009 INFO L226 Difference]: Without dead ends: 1319 [2021-11-07 01:41:37,011 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:41:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-11-07 01:41:37,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1050. [2021-11-07 01:41:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.278048780487805) internal successors, (1310), 1049 states have internal predecessors, (1310), 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) [2021-11-07 01:41:37,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1310 transitions. [2021-11-07 01:41:37,106 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1310 transitions. Word has length 129 [2021-11-07 01:41:37,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:37,106 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1310 transitions. [2021-11-07 01:41:37,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 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) [2021-11-07 01:41:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1310 transitions. [2021-11-07 01:41:37,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 01:41:37,108 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:37,108 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:37,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:37,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:37,312 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:41:37,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:37,313 INFO L85 PathProgramCache]: Analyzing trace with hash 49364914, now seen corresponding path program 1 times [2021-11-07 01:41:37,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:37,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830930469] [2021-11-07 01:41:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:37,318 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:37,319 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:37,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:41:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:43,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:41:43,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:44,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:44,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:44,983 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:44,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830930469] [2021-11-07 01:41:44,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830930469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:44,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:44,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:41:44,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309425366] [2021-11-07 01:41:44,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:41:44,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:44,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:41:44,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:41:44,985 INFO L87 Difference]: Start difference. First operand 1050 states and 1310 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:49,493 INFO L93 Difference]: Finished difference Result 2418 states and 3009 transitions. [2021-11-07 01:41:49,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 01:41:49,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-07 01:41:49,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:49,502 INFO L225 Difference]: With dead ends: 2418 [2021-11-07 01:41:49,502 INFO L226 Difference]: Without dead ends: 1546 [2021-11-07 01:41:49,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:41:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2021-11-07 01:41:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1050. [2021-11-07 01:41:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2760975609756098) internal successors, (1308), 1049 states have internal predecessors, (1308), 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) [2021-11-07 01:41:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1308 transitions. [2021-11-07 01:41:49,582 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1308 transitions. Word has length 134 [2021-11-07 01:41:49,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:49,583 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1308 transitions. [2021-11-07 01:41:49,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:49,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1308 transitions. [2021-11-07 01:41:49,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 01:41:49,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:49,584 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:49,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-07 01:41:49,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:49,808 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:41:49,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:49,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1959022358, now seen corresponding path program 1 times [2021-11-07 01:41:49,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:49,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842812852] [2021-11-07 01:41:49,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:49,813 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:49,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:49,819 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:49,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 01:42:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:07,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 2040 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:42:07,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:08,500 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:42:08,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 36 [2021-11-07 01:42:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:11,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:42:11,935 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:11,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842812852] [2021-11-07 01:42:11,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842812852] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:11,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:11,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-07 01:42:11,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971534331] [2021-11-07 01:42:11,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:42:11,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:11,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:42:11,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2021-11-07 01:42:11,937 INFO L87 Difference]: Start difference. First operand 1050 states and 1308 transitions. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 states have internal predecessors, (147), 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) [2021-11-07 01:43:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:46,889 INFO L93 Difference]: Finished difference Result 3120 states and 3901 transitions. [2021-11-07 01:43:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:43:46,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 states have internal predecessors, (147), 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 142 [2021-11-07 01:43:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:46,901 INFO L225 Difference]: With dead ends: 3120 [2021-11-07 01:43:46,902 INFO L226 Difference]: Without dead ends: 2182 [2021-11-07 01:43:46,904 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=47, Invalid=84, Unknown=1, NotChecked=0, Total=132 [2021-11-07 01:43:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2021-11-07 01:43:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 1052. [2021-11-07 01:43:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1027 states have (on average 1.2755598831548198) internal successors, (1310), 1051 states have internal predecessors, (1310), 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) [2021-11-07 01:43:46,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1310 transitions. [2021-11-07 01:43:46,999 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1310 transitions. Word has length 142 [2021-11-07 01:43:46,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:46,999 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1310 transitions. [2021-11-07 01:43:46,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 states have internal predecessors, (147), 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) [2021-11-07 01:43:46,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1310 transitions. [2021-11-07 01:43:47,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-07 01:43:47,001 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:47,001 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:47,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-07 01:43:47,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:47,224 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:43:47,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:47,225 INFO L85 PathProgramCache]: Analyzing trace with hash -561623017, now seen corresponding path program 1 times [2021-11-07 01:43:47,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:47,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778656960] [2021-11-07 01:43:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:47,229 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:47,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:47,230 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:47,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 01:43:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:52,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 2053 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:43:52,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:53,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:53,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:53,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778656960] [2021-11-07 01:43:53,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778656960] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:53,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:53,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:43:53,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190944900] [2021-11-07 01:43:53,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:43:53,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:53,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:43:53,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:43:53,883 INFO L87 Difference]: Start difference. First operand 1052 states and 1310 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2021-11-07 01:43:54,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:54,630 INFO L93 Difference]: Finished difference Result 3890 states and 4851 transitions. [2021-11-07 01:43:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:43:54,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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 143 [2021-11-07 01:43:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:54,638 INFO L225 Difference]: With dead ends: 3890 [2021-11-07 01:43:54,638 INFO L226 Difference]: Without dead ends: 2930 [2021-11-07 01:43:54,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:43:54,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-11-07 01:43:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1100. [2021-11-07 01:43:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1075 states have (on average 1.2744186046511627) internal successors, (1370), 1099 states have internal predecessors, (1370), 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) [2021-11-07 01:43:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1370 transitions. [2021-11-07 01:43:54,776 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1370 transitions. Word has length 143 [2021-11-07 01:43:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:54,776 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1370 transitions. [2021-11-07 01:43:54,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2021-11-07 01:43:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1370 transitions. [2021-11-07 01:43:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-07 01:43:54,777 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:54,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:54,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:54,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:54,978 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:43:54,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1417729843, now seen corresponding path program 1 times [2021-11-07 01:43:54,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:54,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034325293] [2021-11-07 01:43:54,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:54,982 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:54,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:54,982 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:54,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-07 01:44:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:00,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 2055 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:44:00,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:01,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:01,568 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:01,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034325293] [2021-11-07 01:44:01,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034325293] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:01,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:01,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:44:01,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578129148] [2021-11-07 01:44:01,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:44:01,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:44:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:44:01,571 INFO L87 Difference]: Start difference. First operand 1100 states and 1370 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2021-11-07 01:44:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:03,314 INFO L93 Difference]: Finished difference Result 4072 states and 5041 transitions. [2021-11-07 01:44:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:44:03,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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 143 [2021-11-07 01:44:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:03,320 INFO L225 Difference]: With dead ends: 4072 [2021-11-07 01:44:03,320 INFO L226 Difference]: Without dead ends: 3059 [2021-11-07 01:44:03,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:44:03,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2021-11-07 01:44:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 1100. [2021-11-07 01:44:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1075 states have (on average 1.2688372093023257) internal successors, (1364), 1099 states have internal predecessors, (1364), 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) [2021-11-07 01:44:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1364 transitions. [2021-11-07 01:44:03,427 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1364 transitions. Word has length 143 [2021-11-07 01:44:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:03,427 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1364 transitions. [2021-11-07 01:44:03,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2021-11-07 01:44:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1364 transitions. [2021-11-07 01:44:03,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-07 01:44:03,429 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:03,429 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:03,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:03,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:03,637 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-07 01:44:03,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:03,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1417265175, now seen corresponding path program 1 times [2021-11-07 01:44:03,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:03,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739384440] [2021-11-07 01:44:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:03,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:03,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:03,644 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:03,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-07 01:44:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:09,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:44:09,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:09,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:10,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:10,584 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:10,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739384440] [2021-11-07 01:44:10,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739384440] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:10,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1162665254] [2021-11-07 01:44:10,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:10,585 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:44:10,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:44:10,586 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:44:10,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-07 01:44:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:16,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:44:16,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:17,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:17,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1162665254] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:17,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728701252] [2021-11-07 01:44:17,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:17,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:44:17,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:44:17,545 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:44:17,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fadc0787-04a5-4289-8453-bccfdd73c847/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-07 01:44:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:20,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 01:44:20,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:44:23,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:35,788 WARN L207 SmtUtils]: Spent 11.76 s on a formula simplification. DAG size of input: 534 DAG size of output: 280 [2021-11-07 01:44:35,791 INFO L354 Elim1Store]: treesize reduction 895, result has 45.2 percent of original size [2021-11-07 01:44:35,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 773