./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:13:53,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:13:53,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:13:53,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:13:53,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:13:53,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:13:53,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:13:53,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:13:53,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:13:53,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:13:53,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:13:53,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:13:53,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:13:53,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:13:53,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:13:53,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:13:53,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:13:53,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:13:53,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:13:53,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:13:53,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:13:53,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:13:53,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:13:53,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:13:53,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:13:53,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:13:53,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:13:53,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:13:53,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:13:53,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:13:53,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:13:53,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:13:53,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:13:53,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:13:53,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:13:53,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:13:53,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:13:53,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:13:53,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:13:53,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:13:53,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:13:53,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:13:53,678 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:13:53,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:13:53,685 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:13:53,685 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:13:53,686 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:13:53,686 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:13:53,686 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:13:53,686 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:13:53,687 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:13:53,687 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:13:53,688 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:13:53,688 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:13:53,689 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:13:53,689 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:13:53,689 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:13:53,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:13:53,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:13:53,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:13:53,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:13:53,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:13:53,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:13:53,691 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:13:53,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:13:53,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:13:53,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:13:53,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:13:53,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:13:53,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:13:53,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:13:53,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:13:53,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:13:53,696 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:13:53,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:13:53,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:13:53,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:13:53,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:13:53,697 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2021-11-07 02:13:53,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:13:53,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:13:53,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:13:53,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:13:54,000 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:13:54,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-07 02:13:54,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/49f9fe6c4/c58cd0a1457346b88957ca9aaa8fd7f6/FLAG2de2747ec [2021-11-07 02:13:54,921 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:13:54,922 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-07 02:13:54,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/49f9fe6c4/c58cd0a1457346b88957ca9aaa8fd7f6/FLAG2de2747ec [2021-11-07 02:13:55,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/49f9fe6c4/c58cd0a1457346b88957ca9aaa8fd7f6 [2021-11-07 02:13:55,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:13:55,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:13:55,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:13:55,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:13:55,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:13:55,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:13:55" (1/1) ... [2021-11-07 02:13:55,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60abcc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:13:55, skipping insertion in model container [2021-11-07 02:13:55,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:13:55" (1/1) ... [2021-11-07 02:13:55,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:13:55,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:13:55,888 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-07 02:13:55,896 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-07 02:13:55,920 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:13:55,926 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:13:56,895 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:13:56,966 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,967 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,970 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:56,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:57,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:13:57,433 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:13:57,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:13:57,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:13:57,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:13:57,449 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:13:57,450 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:13:57,451 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:13:57,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:13:57,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:13:57,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:57,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:13:57,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:13:57,788 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 02:13:57,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bc1b8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:13:57, skipping insertion in model container [2021-11-07 02:13:57,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:13:57,790 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:13:57,793 INFO L168 Benchmark]: Toolchain (without parser) took 2355.27 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 73.6 MB in the beginning and 82.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:13:57,794 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:13:57,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2352.46 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 73.3 MB in the beginning and 82.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 37.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:13:57,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2352.46 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 73.3 MB in the beginning and 82.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 37.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:14:00,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:14:00,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:14:00,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:14:00,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:14:00,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:14:00,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:14:00,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:14:00,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:14:00,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:14:00,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:14:00,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:14:00,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:14:00,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:14:00,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:14:00,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:14:00,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:14:00,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:14:00,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:14:00,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:14:00,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:14:00,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:14:00,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:14:00,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:14:00,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:14:00,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:14:00,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:14:00,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:14:00,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:14:00,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:14:00,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:14:00,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:14:00,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:14:00,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:14:00,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:14:00,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:14:00,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:14:00,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:14:00,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:14:00,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:14:00,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:14:00,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:14:00,329 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:14:00,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:14:00,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:14:00,331 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:14:00,332 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:14:00,332 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:14:00,332 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:14:00,332 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:14:00,332 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:14:00,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:14:00,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:14:00,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:14:00,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:14:00,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:14:00,336 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:14:00,336 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:14:00,336 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:14:00,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:14:00,337 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:14:00,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:14:00,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:14:00,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:14:00,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:14:00,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:14:00,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:14:00,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:14:00,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:14:00,338 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:14:00,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:14:00,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:14:00,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:14:00,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:14:00,339 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2021-11-07 02:14:00,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:14:00,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:14:00,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:14:00,797 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:14:00,798 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:14:00,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-07 02:14:00,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/156b72c1c/f80347a5a15449ebb5cdee9f2ae49ff4/FLAG06f0177df [2021-11-07 02:14:01,975 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:14:01,977 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-07 02:14:02,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/156b72c1c/f80347a5a15449ebb5cdee9f2ae49ff4/FLAG06f0177df [2021-11-07 02:14:02,365 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/data/156b72c1c/f80347a5a15449ebb5cdee9f2ae49ff4 [2021-11-07 02:14:02,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:14:02,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:14:02,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:14:02,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:14:02,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:14:02,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:14:02" (1/1) ... [2021-11-07 02:14:02,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b68a040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:02, skipping insertion in model container [2021-11-07 02:14:02,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:14:02" (1/1) ... [2021-11-07 02:14:02,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:14:02,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:14:02,857 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-07 02:14:02,866 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-07 02:14:02,897 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:14:02,912 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:14:04,139 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:14:04,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,238 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:14:04,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:14:04,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:14:04,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:14:04,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:14:04,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:14:04,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:14:04,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:14:04,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:14:04,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:14:04,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:04,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:14:05,083 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:14:05,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:14:05,128 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-07 02:14:05,129 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-07 02:14:05,130 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:14:05,131 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:14:05,161 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:14:05,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:14:05,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:14:05,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:14:05,246 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:14:05,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:14:05,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:14:05,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:14:05,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:14:05,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:14:05,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:14:05,309 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:14:05,387 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:14:05,401 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-07 02:14:05,401 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_3edf3953-c5ee-4927-9858-9578f9d5bcf0/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-07 02:14:05,403 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:14:05,404 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:14:05,431 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:14:05,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:14:05,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:14:05,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:14:05,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:14:05,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:14:05,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:14:05,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:14:05,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:14:05,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:14:05,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:14:05,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:14:05,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:14:06,027 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:14:06,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06 WrapperNode [2021-11-07 02:14:06,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:14:06,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:14:06,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:14:06,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:14:06,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:14:06,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:14:06,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:14:06,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:14:06,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:14:06,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:14:06,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:14:06,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:14:06,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (1/1) ... [2021-11-07 02:14:06,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:14:06,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:14:06,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:14:06,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:14:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:14:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:14:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:14:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:14:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:14:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:14:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:14:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:14:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:14:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:14:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:14:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:14:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:14:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:14:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:14:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:14:23,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:14:23,501 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-11-07 02:14:23,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:14:23 BoogieIcfgContainer [2021-11-07 02:14:23,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:14:23,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:14:23,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:14:23,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:14:23,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:14:02" (1/3) ... [2021-11-07 02:14:23,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a7cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:14:23, skipping insertion in model container [2021-11-07 02:14:23,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:14:06" (2/3) ... [2021-11-07 02:14:23,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a7cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:14:23, skipping insertion in model container [2021-11-07 02:14:23,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:14:23" (3/3) ... [2021-11-07 02:14:23,512 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2021-11-07 02:14:23,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:14:23,519 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-07 02:14:23,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:14:23,577 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 02:14:23,578 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-07 02:14:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 234 states have (on average 1.4487179487179487) internal successors, (339), 249 states have internal predecessors, (339), 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 02:14:23,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 02:14:23,608 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:23,609 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] [2021-11-07 02:14:23,610 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:14:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1889202216, now seen corresponding path program 1 times [2021-11-07 02:14:23,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:23,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742880976] [2021-11-07 02:14:23,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:23,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:23,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:23,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:23,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:14:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:27,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:14:27,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:28,167 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 02:14:28,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:28,392 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 02:14:28,393 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:14:28,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742880976] [2021-11-07 02:14:28,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742880976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:14:28,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:14:28,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:14:28,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235841708] [2021-11-07 02:14:28,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:14:28,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:14:28,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:14:28,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:14:28,438 INFO L87 Difference]: Start difference. First operand has 250 states, 234 states have (on average 1.4487179487179487) internal successors, (339), 249 states have internal predecessors, (339), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 02:14:28,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:14:28,520 INFO L93 Difference]: Finished difference Result 494 states and 671 transitions. [2021-11-07 02:14:28,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:14:28,522 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-07 02:14:28,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:14:28,535 INFO L225 Difference]: With dead ends: 494 [2021-11-07 02:14:28,535 INFO L226 Difference]: Without dead ends: 243 [2021-11-07 02:14:28,543 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 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 02:14:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-07 02:14:28,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-07 02:14:28,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.3201754385964912) internal successors, (301), 242 states have internal predecessors, (301), 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 02:14:28,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 301 transitions. [2021-11-07 02:14:28,638 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 301 transitions. Word has length 40 [2021-11-07 02:14:28,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:14:28,639 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 301 transitions. [2021-11-07 02:14:28,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 02:14:28,641 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 301 transitions. [2021-11-07 02:14:28,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 02:14:28,644 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:28,644 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] [2021-11-07 02:14:28,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:14:28,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:14:28,845 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:14:28,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash -947073706, now seen corresponding path program 1 times [2021-11-07 02:14:28,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:28,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784258152] [2021-11-07 02:14:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:28,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:28,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:28,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:28,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:14:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:33,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:14:33,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:33,536 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 02:14:33,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:33,820 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 02:14:33,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:14:33,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784258152] [2021-11-07 02:14:33,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784258152] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:14:33,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:14:33,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:14:33,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965832584] [2021-11-07 02:14:33,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:14:33,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:14:33,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:14:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:14:33,826 INFO L87 Difference]: Start difference. First operand 243 states and 301 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 02:14:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:14:34,194 INFO L93 Difference]: Finished difference Result 406 states and 497 transitions. [2021-11-07 02:14:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:14:34,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2021-11-07 02:14:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:14:34,199 INFO L225 Difference]: With dead ends: 406 [2021-11-07 02:14:34,199 INFO L226 Difference]: Without dead ends: 243 [2021-11-07 02:14:34,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 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 02:14:34,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-07 02:14:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-07 02:14:34,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.3114035087719298) internal successors, (299), 242 states have internal predecessors, (299), 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 02:14:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 299 transitions. [2021-11-07 02:14:34,219 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 299 transitions. Word has length 40 [2021-11-07 02:14:34,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:14:34,219 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 299 transitions. [2021-11-07 02:14:34,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 02:14:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 299 transitions. [2021-11-07 02:14:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 02:14:34,222 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:34,222 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] [2021-11-07 02:14:34,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:14:34,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:14:34,445 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:14:34,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:34,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1776399483, now seen corresponding path program 1 times [2021-11-07 02:14:34,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:34,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619993077] [2021-11-07 02:14:34,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:34,454 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:34,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:34,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:34,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:14:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:38,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:14:38,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:39,166 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 02:14:39,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:39,565 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 02:14:39,566 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:14:39,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619993077] [2021-11-07 02:14:39,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619993077] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:14:39,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:14:39,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:14:39,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327649737] [2021-11-07 02:14:39,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:14:39,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:14:39,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:14:39,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:14:39,569 INFO L87 Difference]: Start difference. First operand 243 states and 299 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:14:41,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:14:41,006 INFO L93 Difference]: Finished difference Result 521 states and 626 transitions. [2021-11-07 02:14:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:14:41,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 02:14:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:14:41,011 INFO L225 Difference]: With dead ends: 521 [2021-11-07 02:14:41,011 INFO L226 Difference]: Without dead ends: 326 [2021-11-07 02:14:41,012 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:14:41,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-07 02:14:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 243. [2021-11-07 02:14:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.3026315789473684) internal successors, (297), 242 states have internal predecessors, (297), 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 02:14:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 297 transitions. [2021-11-07 02:14:41,035 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 297 transitions. Word has length 44 [2021-11-07 02:14:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:14:41,036 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 297 transitions. [2021-11-07 02:14:41,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:14:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 297 transitions. [2021-11-07 02:14:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 02:14:41,039 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:41,039 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] [2021-11-07 02:14:41,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:14:41,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:14:41,265 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:14:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:41,266 INFO L85 PathProgramCache]: Analyzing trace with hash 421587873, now seen corresponding path program 1 times [2021-11-07 02:14:41,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:41,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185074253] [2021-11-07 02:14:41,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:41,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:41,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:41,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:41,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:14:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:45,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:14:45,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:46,285 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 02:14:46,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:46,610 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 02:14:46,611 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:14:46,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185074253] [2021-11-07 02:14:46,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185074253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:14:46,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:14:46,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:14:46,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454033268] [2021-11-07 02:14:46,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:14:46,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:14:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:14:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:14:46,614 INFO L87 Difference]: Start difference. First operand 243 states and 297 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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 02:14:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:14:47,241 INFO L93 Difference]: Finished difference Result 407 states and 492 transitions. [2021-11-07 02:14:47,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:14:47,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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 52 [2021-11-07 02:14:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:14:47,245 INFO L225 Difference]: With dead ends: 407 [2021-11-07 02:14:47,245 INFO L226 Difference]: Without dead ends: 243 [2021-11-07 02:14:47,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:14:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-07 02:14:47,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-07 02:14:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.293859649122807) internal successors, (295), 242 states have internal predecessors, (295), 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 02:14:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 295 transitions. [2021-11-07 02:14:47,264 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 295 transitions. Word has length 52 [2021-11-07 02:14:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:14:47,264 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 295 transitions. [2021-11-07 02:14:47,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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 02:14:47,265 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 295 transitions. [2021-11-07 02:14:47,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 02:14:47,267 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:47,268 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 02:14:47,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:14:47,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:14:47,493 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:14:47,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:47,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1861026450, now seen corresponding path program 1 times [2021-11-07 02:14:47,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:47,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097555134] [2021-11-07 02:14:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:47,498 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:47,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:47,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:47,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:14:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:52,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:14:52,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:52,673 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 02:14:52,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:14:53,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:14:53,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097555134] [2021-11-07 02:14:53,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097555134] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:14:53,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:14:53,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 02:14:53,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686410716] [2021-11-07 02:14:53,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:14:53,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:14:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:14:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:14:53,092 INFO L87 Difference]: Start difference. First operand 243 states and 295 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 02:14:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:14:54,310 INFO L93 Difference]: Finished difference Result 423 states and 512 transitions. [2021-11-07 02:14:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:14:54,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 02:14:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:14:54,314 INFO L225 Difference]: With dead ends: 423 [2021-11-07 02:14:54,314 INFO L226 Difference]: Without dead ends: 243 [2021-11-07 02:14:54,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:14:54,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-07 02:14:54,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-07 02:14:54,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.2850877192982457) internal successors, (293), 242 states have internal predecessors, (293), 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 02:14:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 293 transitions. [2021-11-07 02:14:54,330 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 293 transitions. Word has length 64 [2021-11-07 02:14:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:14:54,331 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 293 transitions. [2021-11-07 02:14:54,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 02:14:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 293 transitions. [2021-11-07 02:14:54,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 02:14:54,333 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:54,334 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 02:14:54,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:14:54,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:14:54,541 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:14:54,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:54,541 INFO L85 PathProgramCache]: Analyzing trace with hash 219242486, now seen corresponding path program 1 times [2021-11-07 02:14:54,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:54,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890826745] [2021-11-07 02:14:54,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:54,545 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:54,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:54,546 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:54,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:14:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:59,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:14:59,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:00,022 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 02:15:00,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:00,274 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 02:15:00,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:00,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890826745] [2021-11-07 02:15:00,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890826745] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:00,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:00,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:15:00,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337089166] [2021-11-07 02:15:00,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:15:00,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:00,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:15:00,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:15:00,277 INFO L87 Difference]: Start difference. First operand 243 states and 293 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 02:15:00,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:00,618 INFO L93 Difference]: Finished difference Result 566 states and 673 transitions. [2021-11-07 02:15:00,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:15:00,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 02:15:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:00,626 INFO L225 Difference]: With dead ends: 566 [2021-11-07 02:15:00,627 INFO L226 Difference]: Without dead ends: 401 [2021-11-07 02:15:00,628 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 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 02:15:00,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-07 02:15:00,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 255. [2021-11-07 02:15:00,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 240 states have (on average 1.2875) internal successors, (309), 254 states have internal predecessors, (309), 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 02:15:00,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 309 transitions. [2021-11-07 02:15:00,646 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 309 transitions. Word has length 72 [2021-11-07 02:15:00,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:00,646 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 309 transitions. [2021-11-07 02:15:00,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 02:15:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 309 transitions. [2021-11-07 02:15:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 02:15:00,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:00,650 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 02:15:00,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:00,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:00,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:15:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash 728715576, now seen corresponding path program 1 times [2021-11-07 02:15:00,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:00,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780570497] [2021-11-07 02:15:00,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:00,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:00,870 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:00,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:15:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:05,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:15:05,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:06,988 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 02:15:06,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:07,577 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 02:15:07,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:07,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780570497] [2021-11-07 02:15:07,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780570497] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:07,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:07,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 02:15:07,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360436025] [2021-11-07 02:15:07,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:15:07,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:07,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:15:07,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:15:07,580 INFO L87 Difference]: Start difference. First operand 255 states and 309 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 02:15:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:34,370 INFO L93 Difference]: Finished difference Result 591 states and 706 transitions. [2021-11-07 02:15:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:15:34,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 02:15:34,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:34,376 INFO L225 Difference]: With dead ends: 591 [2021-11-07 02:15:34,376 INFO L226 Difference]: Without dead ends: 411 [2021-11-07 02:15:34,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:15:34,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-11-07 02:15:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 255. [2021-11-07 02:15:34,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 240 states have (on average 1.2791666666666666) internal successors, (307), 254 states have internal predecessors, (307), 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 02:15:34,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 307 transitions. [2021-11-07 02:15:34,394 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 307 transitions. Word has length 72 [2021-11-07 02:15:34,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:34,395 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 307 transitions. [2021-11-07 02:15:34,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 02:15:34,395 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 307 transitions. [2021-11-07 02:15:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 02:15:34,396 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:34,396 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 02:15:34,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:34,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:34,605 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:15:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:34,605 INFO L85 PathProgramCache]: Analyzing trace with hash 790755190, now seen corresponding path program 1 times [2021-11-07 02:15:34,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:34,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564644386] [2021-11-07 02:15:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:34,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:34,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:34,609 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:34,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:15:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:39,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:15:39,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:15:40,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:40,964 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 02:15:40,964 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:40,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564644386] [2021-11-07 02:15:40,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564644386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:40,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:40,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 02:15:40,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788762965] [2021-11-07 02:15:40,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:15:40,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:40,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:15:40,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:15:40,967 INFO L87 Difference]: Start difference. First operand 255 states and 307 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 02:16:21,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:21,603 INFO L93 Difference]: Finished difference Result 593 states and 704 transitions. [2021-11-07 02:16:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 02:16:21,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 02:16:21,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:21,609 INFO L225 Difference]: With dead ends: 593 [2021-11-07 02:16:21,610 INFO L226 Difference]: Without dead ends: 413 [2021-11-07 02:16:21,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:16:21,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-11-07 02:16:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 259. [2021-11-07 02:16:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 244 states have (on average 1.2663934426229508) internal successors, (309), 258 states have internal predecessors, (309), 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 02:16:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2021-11-07 02:16:21,627 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 72 [2021-11-07 02:16:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:21,627 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2021-11-07 02:16:21,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 02:16:21,628 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2021-11-07 02:16:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 02:16:21,629 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:21,629 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 02:16:21,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:21,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:21,841 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:16:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash 656741684, now seen corresponding path program 1 times [2021-11-07 02:16:21,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:21,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530542339] [2021-11-07 02:16:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:21,846 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:21,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:21,847 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:21,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3edf3953-c5ee-4927-9858-9578f9d5bcf0/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:16:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:26,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1796 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-07 02:16:26,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:34,057 INFO L354 Elim1Store]: treesize reduction 560, result has 54.6 percent of original size [2021-11-07 02:16:34,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 625 treesize of output 913 [2021-11-07 02:16:34,126 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 02:16:34,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1729 treesize of output 1709 [2021-11-07 02:16:34,180 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 02:16:34,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1703 treesize of output 1683 [2021-11-07 02:17:36,529 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 02:17:36,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:55,230 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-07 02:17:55,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 723 treesize of output 723 [2021-11-07 02:17:55,481 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-07 02:17:55,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 719 treesize of output 719 [2021-11-07 02:19:46,894 WARN L207 SmtUtils]: Spent 1.71 m on a formula simplification. DAG size of input: 1178 DAG size of output: 750 [2021-11-07 02:19:46,905 INFO L354 Elim1Store]: treesize reduction 1688, result has 56.6 percent of original size [2021-11-07 02:19:46,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 733 treesize of output 2405