./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:05:59,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:05:59,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:05:59,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:05:59,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:05:59,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:05:59,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:05:59,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:05:59,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:05:59,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:05:59,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:05:59,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:05:59,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:05:59,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:05:59,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:05:59,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:05:59,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:05:59,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:05:59,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:05:59,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:05:59,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:05:59,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:05:59,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:05:59,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:05:59,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:05:59,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:05:59,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:05:59,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:05:59,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:05:59,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:05:59,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:00,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:00,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:00,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:00,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:00,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:00,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:00,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:00,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:00,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:00,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:00,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:06:00,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:00,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:00,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:00,049 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:00,049 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:00,050 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:00,050 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:06:00,051 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:00,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:00,052 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:06:00,052 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:06:00,052 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:00,053 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:06:00,053 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:06:00,054 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:06:00,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:00,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:06:00,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:00,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:00,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:00,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:00,056 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:00,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:00,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:00,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:00,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:00,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:00,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:00,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:00,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:00,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:00,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:06:00,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:06:00,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:00,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:00,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:00,062 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 [2021-11-07 01:06:00,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:00,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:00,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:00,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:00,393 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:00,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 01:06:00,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/4539bcd9e/2bbdbf6c50204275be1ae1f03903ec79/FLAG5f0dd3016 [2021-11-07 01:06:01,419 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:01,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 01:06:01,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/4539bcd9e/2bbdbf6c50204275be1ae1f03903ec79/FLAG5f0dd3016 [2021-11-07 01:06:01,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/4539bcd9e/2bbdbf6c50204275be1ae1f03903ec79 [2021-11-07 01:06:01,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:01,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:01,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:01,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:01,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:01,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:01" (1/1) ... [2021-11-07 01:06:01,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c717bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:01, skipping insertion in model container [2021-11-07 01:06:01,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:01" (1/1) ... [2021-11-07 01:06:01,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:02,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:02,299 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4501,4514] [2021-11-07 01:06:02,307 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4561,4574] [2021-11-07 01:06:02,333 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:02,340 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:03,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,369 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:03,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:03,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:03,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:03,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:03,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:03,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:03,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:03,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:03,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:03,897 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:03,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:04,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:04,066 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 01:06:04,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@384c02be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:04, skipping insertion in model container [2021-11-07 01:06:04,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:04,067 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:06:04,070 INFO L168 Benchmark]: Toolchain (without parser) took 2204.86 ms. Allocated memory was 90.2 MB in the beginning and 125.8 MB in the end (delta: 35.7 MB). Free memory was 47.4 MB in the beginning and 55.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:04,071 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory was 60.5 MB in the beginning and 60.4 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:06:04,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2202.18 ms. Allocated memory was 90.2 MB in the beginning and 125.8 MB in the end (delta: 35.7 MB). Free memory was 47.1 MB in the beginning and 55.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:04,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory was 60.5 MB in the beginning and 60.4 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2202.18 ms. Allocated memory was 90.2 MB in the beginning and 125.8 MB in the end (delta: 35.7 MB). Free memory was 47.1 MB in the beginning and 55.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 29.6 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:06:06,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:06:06,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:06:06,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:06:06,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:06:06,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:06:06,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:06:06,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:06:06,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:06:06,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:06:06,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:06:06,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:06:06,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:06:06,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:06:06,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:06:06,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:06:06,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:06:06,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:06:06,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:06:06,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:06:06,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:06:06,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:06:06,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:06:06,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:06:06,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:06:06,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:06:06,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:06:06,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:06:06,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:06:06,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:06:06,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:06,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:06,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:06,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:06,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:06,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:06,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:06,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:06,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:06,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:06,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:06,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:06:06,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:06,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:06,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:06,539 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:06,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:06,540 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:06,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:06,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:06,540 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:06,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:06,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:06,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:06,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:06,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:06,544 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:06,544 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:06:06,544 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:06:06,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:06,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:06,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:06,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:06,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:06:06,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:06,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:06,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:06,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:06,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:06,547 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:06:06,547 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:06:06,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:06,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:06,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:06,548 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 [2021-11-07 01:06:07,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:07,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:07,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:07,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:07,052 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:07,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 01:06:07,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/1fd4ed537/8b608d5e1c89400ead100b77be5a9176/FLAGc81899f76 [2021-11-07 01:06:08,132 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:08,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 01:06:08,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/1fd4ed537/8b608d5e1c89400ead100b77be5a9176/FLAGc81899f76 [2021-11-07 01:06:08,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/data/1fd4ed537/8b608d5e1c89400ead100b77be5a9176 [2021-11-07 01:06:08,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:08,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:08,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:08,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:08,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:08,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:08" (1/1) ... [2021-11-07 01:06:08,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8f3859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:08, skipping insertion in model container [2021-11-07 01:06:08,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:08" (1/1) ... [2021-11-07 01:06:08,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:08,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:09,092 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4501,4514] [2021-11-07 01:06:09,100 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4561,4574] [2021-11-07 01:06:09,133 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:09,149 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:10,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:10,524 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:10,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:10,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:10,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:10,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:10,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:10,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:10,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:10,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:10,752 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:10,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:10,970 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:06:11,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:11,052 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4501,4514] [2021-11-07 01:06:11,052 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4561,4574] [2021-11-07 01:06:11,054 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:11,055 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:11,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,108 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,108 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,108 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,155 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:11,156 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:11,157 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:11,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:11,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:11,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:11,160 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:11,160 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:11,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:11,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:11,184 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:11,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:11,292 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:06:11,306 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4501,4514] [2021-11-07 01:06:11,307 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_f3bee682-9070-4cfc-bde7-c0532d7ee88b/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i[4561,4574] [2021-11-07 01:06:11,308 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:11,309 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:11,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:11,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:11,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:11,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:11,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:11,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:11,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:11,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:11,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:11,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:11,452 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:11,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,511 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:11,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:12,003 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:06:12,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12 WrapperNode [2021-11-07 01:06:12,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:12,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:12,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:06:12,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:06:12,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:12,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:06:12,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:06:12,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:06:12,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:12,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:06:12,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:06:12,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:06:12,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:06:12,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (1/1) ... [2021-11-07 01:06:13,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:13,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:06:13,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:06:13,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:06:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:06:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:06:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:06:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:06:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:06:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:06:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:06:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:06:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:06:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:06:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:06:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:06:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:06:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:06:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:06:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:06:55,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:06:55,451 INFO L299 CfgBuilder]: Removed 1883 assume(true) statements. [2021-11-07 01:06:55,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:55 BoogieIcfgContainer [2021-11-07 01:06:55,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:06:55,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:06:55,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:06:55,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:06:55,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:06:08" (1/3) ... [2021-11-07 01:06:55,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6190fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:55, skipping insertion in model container [2021-11-07 01:06:55,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:12" (2/3) ... [2021-11-07 01:06:55,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6190fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:55, skipping insertion in model container [2021-11-07 01:06:55,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:55" (3/3) ... [2021-11-07 01:06:55,464 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness.i [2021-11-07 01:06:55,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:06:55,470 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2021-11-07 01:06:55,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:06:55,530 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 01:06:55,531 INFO L340 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2021-11-07 01:06:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 2319 states, 2255 states have (on average 1.4124168514412416) internal successors, (3185), 2318 states have internal predecessors, (3185), 0 states have call successors, (0), 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 01:06:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:06:55,590 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:55,590 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:06:55,591 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:06:55,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:55,596 INFO L85 PathProgramCache]: Analyzing trace with hash -966206977, now seen corresponding path program 1 times [2021-11-07 01:06:55,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:55,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364539338] [2021-11-07 01:06:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:55,616 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:55,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:55,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:55,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:06:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:59,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:06:59,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:00,045 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 01:07:00,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:00,260 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 01:07:00,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:00,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364539338] [2021-11-07 01:07:00,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364539338] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:00,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:00,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:07:00,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004163130] [2021-11-07 01:07:00,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:07:00,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:00,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:07:00,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:07:00,315 INFO L87 Difference]: Start difference. First operand has 2319 states, 2255 states have (on average 1.4124168514412416) internal successors, (3185), 2318 states have internal predecessors, (3185), 0 states have call successors, (0), 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 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:00,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:00,485 INFO L93 Difference]: Finished difference Result 4632 states and 6363 transitions. [2021-11-07 01:07:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:07:00,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 01:07:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:00,521 INFO L225 Difference]: With dead ends: 4632 [2021-11-07 01:07:00,521 INFO L226 Difference]: Without dead ends: 2314 [2021-11-07 01:07:00,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 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 01:07:00,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2021-11-07 01:07:00,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2021-11-07 01:07:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.3251888049755665) internal successors, (2983), 2313 states have internal predecessors, (2983), 0 states have call successors, (0), 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 01:07:00,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2983 transitions. [2021-11-07 01:07:00,816 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2983 transitions. Word has length 64 [2021-11-07 01:07:00,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:00,817 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2983 transitions. [2021-11-07 01:07:00,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:00,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2983 transitions. [2021-11-07 01:07:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:07:00,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:00,830 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:00,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:01,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:01,052 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:07:01,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:01,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1823598091, now seen corresponding path program 1 times [2021-11-07 01:07:01,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:01,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351065446] [2021-11-07 01:07:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:01,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:01,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:01,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:01,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:07:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:05,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:07:05,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:05,518 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 01:07:05,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:05,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:05,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351065446] [2021-11-07 01:07:05,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351065446] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:05,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:05,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:07:05,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599669682] [2021-11-07 01:07:05,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:05,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:05,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:07:05,902 INFO L87 Difference]: Start difference. First operand 2314 states and 2983 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:06,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:06,362 INFO L93 Difference]: Finished difference Result 4548 states and 5861 transitions. [2021-11-07 01:07:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:07:06,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 01:07:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:06,379 INFO L225 Difference]: With dead ends: 4548 [2021-11-07 01:07:06,379 INFO L226 Difference]: Without dead ends: 2314 [2021-11-07 01:07:06,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 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 01:07:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2021-11-07 01:07:06,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2021-11-07 01:07:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.3238560639715682) internal successors, (2980), 2313 states have internal predecessors, (2980), 0 states have call successors, (0), 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 01:07:06,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2980 transitions. [2021-11-07 01:07:06,487 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2980 transitions. Word has length 64 [2021-11-07 01:07:06,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:06,488 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2980 transitions. [2021-11-07 01:07:06,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:06,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2980 transitions. [2021-11-07 01:07:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 01:07:06,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:06,490 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] [2021-11-07 01:07:06,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:06,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:06,704 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:07:06,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:06,705 INFO L85 PathProgramCache]: Analyzing trace with hash 998964115, now seen corresponding path program 1 times [2021-11-07 01:07:06,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:06,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127195910] [2021-11-07 01:07:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:06,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:06,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:06,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:06,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:07:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:11,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:07:11,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:11,624 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 01:07:11,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:12,164 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 01:07:12,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:12,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127195910] [2021-11-07 01:07:12,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127195910] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:12,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:12,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:07:12,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104946439] [2021-11-07 01:07:12,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:07:12,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:12,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:07:12,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:07:12,168 INFO L87 Difference]: Start difference. First operand 2314 states and 2980 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:21,754 INFO L93 Difference]: Finished difference Result 5247 states and 6724 transitions. [2021-11-07 01:07:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:07:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 01:07:21,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:21,780 INFO L225 Difference]: With dead ends: 5247 [2021-11-07 01:07:21,781 INFO L226 Difference]: Without dead ends: 2981 [2021-11-07 01:07:21,785 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:07:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-11-07 01:07:21,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2314. [2021-11-07 01:07:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.32252332296757) internal successors, (2977), 2313 states have internal predecessors, (2977), 0 states have call successors, (0), 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 01:07:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2977 transitions. [2021-11-07 01:07:21,991 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2977 transitions. Word has length 72 [2021-11-07 01:07:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:21,992 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2977 transitions. [2021-11-07 01:07:21,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2977 transitions. [2021-11-07 01:07:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 01:07:21,994 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:21,995 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] [2021-11-07 01:07:22,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:22,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:22,220 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:07:22,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash -984193973, now seen corresponding path program 1 times [2021-11-07 01:07:22,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:22,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825494682] [2021-11-07 01:07:22,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:22,231 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:22,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:22,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:22,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:07:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:27,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:07:27,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:27,987 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 01:07:27,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:28,517 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 01:07:28,517 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:28,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825494682] [2021-11-07 01:07:28,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825494682] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:28,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:28,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:07:28,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080357184] [2021-11-07 01:07:28,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:07:28,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:28,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:07:28,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:07:28,520 INFO L87 Difference]: Start difference. First operand 2314 states and 2977 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 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 01:07:30,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:30,174 INFO L93 Difference]: Finished difference Result 5255 states and 6739 transitions. [2021-11-07 01:07:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:07:30,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-11-07 01:07:30,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:30,196 INFO L225 Difference]: With dead ends: 5255 [2021-11-07 01:07:30,198 INFO L226 Difference]: Without dead ends: 3020 [2021-11-07 01:07:30,204 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 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 01:07:30,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2021-11-07 01:07:30,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2314. [2021-11-07 01:07:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.3211905819635716) internal successors, (2974), 2313 states have internal predecessors, (2974), 0 states have call successors, (0), 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 01:07:30,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2974 transitions. [2021-11-07 01:07:30,339 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2974 transitions. Word has length 88 [2021-11-07 01:07:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:30,339 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2974 transitions. [2021-11-07 01:07:30,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 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 01:07:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2974 transitions. [2021-11-07 01:07:30,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 01:07:30,350 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:30,351 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] [2021-11-07 01:07:30,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:30,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:30,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:07:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:30,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1935115155, now seen corresponding path program 1 times [2021-11-07 01:07:30,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:30,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765209192] [2021-11-07 01:07:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:30,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:30,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:30,575 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:30,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:07:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:35,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:07:35,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:36,203 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 01:07:36,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:36,870 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 01:07:36,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:36,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765209192] [2021-11-07 01:07:36,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765209192] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:36,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:36,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:07:36,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484738308] [2021-11-07 01:07:36,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:07:36,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:36,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:07:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:07:36,873 INFO L87 Difference]: Start difference. First operand 2314 states and 2974 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 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 01:07:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:46,931 INFO L93 Difference]: Finished difference Result 5271 states and 6757 transitions. [2021-11-07 01:07:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:07:46,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 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 112 [2021-11-07 01:07:46,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:46,954 INFO L225 Difference]: With dead ends: 5271 [2021-11-07 01:07:46,954 INFO L226 Difference]: Without dead ends: 3020 [2021-11-07 01:07:46,959 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:07:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2021-11-07 01:07:47,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2314. [2021-11-07 01:07:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.3198578409595736) internal successors, (2971), 2313 states have internal predecessors, (2971), 0 states have call successors, (0), 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 01:07:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2971 transitions. [2021-11-07 01:07:47,125 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2971 transitions. Word has length 112 [2021-11-07 01:07:47,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:47,126 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2971 transitions. [2021-11-07 01:07:47,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 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 01:07:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2971 transitions. [2021-11-07 01:07:47,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 01:07:47,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:47,129 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] [2021-11-07 01:07:47,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:47,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:47,356 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:07:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:47,357 INFO L85 PathProgramCache]: Analyzing trace with hash 210590901, now seen corresponding path program 1 times [2021-11-07 01:07:47,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:47,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141208094] [2021-11-07 01:07:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:47,362 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:47,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:47,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:47,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:07:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:52,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:07:52,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:52,987 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 01:07:52,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:53,406 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 01:07:53,406 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:53,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141208094] [2021-11-07 01:07:53,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141208094] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:53,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:53,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:07:53,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469655892] [2021-11-07 01:07:53,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:07:53,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:53,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:07:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:07:53,409 INFO L87 Difference]: Start difference. First operand 2314 states and 2971 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 0 states have call successors, (0), 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 01:07:55,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:55,007 INFO L93 Difference]: Finished difference Result 6635 states and 8501 transitions. [2021-11-07 01:07:55,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:07:55,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2021-11-07 01:07:55,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:55,038 INFO L225 Difference]: With dead ends: 6635 [2021-11-07 01:07:55,038 INFO L226 Difference]: Without dead ends: 4399 [2021-11-07 01:07:55,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 251 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 01:07:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2021-11-07 01:07:55,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 2374. [2021-11-07 01:07:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 2311 states have (on average 1.3202077022933796) internal successors, (3051), 2373 states have internal predecessors, (3051), 0 states have call successors, (0), 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 01:07:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3051 transitions. [2021-11-07 01:07:55,184 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3051 transitions. Word has length 128 [2021-11-07 01:07:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:55,185 INFO L470 AbstractCegarLoop]: Abstraction has 2374 states and 3051 transitions. [2021-11-07 01:07:55,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 0 states have call successors, (0), 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 01:07:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3051 transitions. [2021-11-07 01:07:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 01:07:55,187 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:55,187 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] [2021-11-07 01:07:55,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:55,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:55,412 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:07:55,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:55,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2089721847, now seen corresponding path program 1 times [2021-11-07 01:07:55,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:55,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171694046] [2021-11-07 01:07:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:55,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:55,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:55,421 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:55,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:08:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:00,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:08:00,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:01,874 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 01:08:01,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:02,697 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 01:08:02,697 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:02,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171694046] [2021-11-07 01:08:02,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171694046] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:02,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:02,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:08:02,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691500864] [2021-11-07 01:08:02,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:08:02,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:02,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:08:02,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:08:02,699 INFO L87 Difference]: Start difference. First operand 2374 states and 3051 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 01:14:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:44,805 INFO L93 Difference]: Finished difference Result 6635 states and 8495 transitions. [2021-11-07 01:14:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:14:44,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 128 [2021-11-07 01:14:44,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:44,827 INFO L225 Difference]: With dead ends: 6635 [2021-11-07 01:14:44,827 INFO L226 Difference]: Without dead ends: 4336 [2021-11-07 01:14:44,831 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 248 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 01:14:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2021-11-07 01:14:44,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 2374. [2021-11-07 01:14:44,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 2311 states have (on average 1.3158805711813069) internal successors, (3041), 2373 states have internal predecessors, (3041), 0 states have call successors, (0), 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 01:14:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3041 transitions. [2021-11-07 01:14:44,985 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3041 transitions. Word has length 128 [2021-11-07 01:14:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:44,986 INFO L470 AbstractCegarLoop]: Abstraction has 2374 states and 3041 transitions. [2021-11-07 01:14:44,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 01:14:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3041 transitions. [2021-11-07 01:14:44,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 01:14:44,988 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:44,988 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] [2021-11-07 01:14:45,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:45,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:14:45,212 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 01:14:45,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash -638487499, now seen corresponding path program 1 times [2021-11-07 01:14:45,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:45,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767332895] [2021-11-07 01:14:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:45,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:45,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:45,219 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:45,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bee682-9070-4cfc-bde7-c0532d7ee88b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:14:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:50,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:14:50,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:51,239 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 01:14:51,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:52,033 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 01:14:52,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:52,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767332895] [2021-11-07 01:14:52,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767332895] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:14:52,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:14:52,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 01:14:52,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166469194] [2021-11-07 01:14:52,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:14:52,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:52,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:14:52,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:14:52,036 INFO L87 Difference]: Start difference. First operand 2374 states and 3041 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)