./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:58:21,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:58:21,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:58:21,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:58:21,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:58:21,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:58:21,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:58:21,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:58:21,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:58:21,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:58:21,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:58:21,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:58:21,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:58:21,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:58:21,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:58:21,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:58:21,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:58:21,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:58:21,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:58:21,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:58:21,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:58:21,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:58:21,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:58:21,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:58:21,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:58:21,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:58:21,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:58:21,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:58:21,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:58:21,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:58:21,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:58:21,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:58:21,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:58:21,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:58:21,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:58:21,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:58:21,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:58:21,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:58:21,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:58:21,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:58:21,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:58:21,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:58:21,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:58:21,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:58:21,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:58:21,736 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:58:21,736 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:58:21,736 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:58:21,737 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:58:21,737 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:58:21,745 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:58:21,745 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:58:21,746 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:58:21,747 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:58:21,747 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:58:21,747 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:58:21,748 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:58:21,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:58:21,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:58:21,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:58:21,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:58:21,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:58:21,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:58:21,750 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:58:21,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:58:21,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:58:21,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:58:21,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:58:21,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:58:21,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:58:21,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:58:21,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:58:21,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:58:21,753 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:58:21,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:58:21,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:58:21,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:58:21,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:58:21,755 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f [2021-11-07 01:58:22,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:58:22,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:58:22,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:58:22,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:58:22,155 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:58:22,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-07 01:58:22,254 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/c6b43f951/7a8f20b1576f4618bdb9214d9b105f85/FLAG4bbf540c5 [2021-11-07 01:58:23,243 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:58:23,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-07 01:58:23,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/c6b43f951/7a8f20b1576f4618bdb9214d9b105f85/FLAG4bbf540c5 [2021-11-07 01:58:23,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/c6b43f951/7a8f20b1576f4618bdb9214d9b105f85 [2021-11-07 01:58:23,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:58:23,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:58:23,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:58:23,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:58:23,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:58:23,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:58:23" (1/1) ... [2021-11-07 01:58:23,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2378cb65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:23, skipping insertion in model container [2021-11-07 01:58:23,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:58:23" (1/1) ... [2021-11-07 01:58:23,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:58:23,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:58:24,070 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-07 01:58:24,079 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-07 01:58:24,113 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:58:24,121 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:58:25,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:25,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:26,660 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:58:26,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:58:26,663 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:58:26,664 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:58:26,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:58:26,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:58:26,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:58:26,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:58:26,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:58:26,669 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:58:26,875 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:58:26,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:26,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:27,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:27,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:27,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:58:27,268 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:58:27,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53394648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:27, skipping insertion in model container [2021-11-07 01:58:27,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:58:27,270 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:58:27,273 INFO L168 Benchmark]: Toolchain (without parser) took 3660.95 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 42.6 MB in the end (delta: 33.9 MB). Peak memory consumption was 54.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:58:27,274 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:58:27,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3658.15 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 42.6 MB in the end (delta: 33.5 MB). Peak memory consumption was 54.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:58:27,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3658.15 ms. Allocated memory is still 104.9 MB. Free memory was 76.1 MB in the beginning and 42.6 MB in the end (delta: 33.5 MB). Peak memory consumption was 54.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7039]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:58:29,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:58:29,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:58:29,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:58:29,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:58:29,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:58:29,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:58:29,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:58:29,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:58:29,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:58:29,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:58:29,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:58:29,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:58:29,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:58:29,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:58:29,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:58:29,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:58:29,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:58:29,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:58:29,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:58:29,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:58:29,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:58:29,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:58:29,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:58:29,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:58:29,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:58:29,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:58:29,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:58:29,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:58:29,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:58:29,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:58:29,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:58:29,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:58:29,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:58:29,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:58:29,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:58:29,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:58:29,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:58:29,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:58:29,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:58:29,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:58:29,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:58:30,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:58:30,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:58:30,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:58:30,015 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:58:30,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:58:30,017 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:58:30,017 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:58:30,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:58:30,017 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:58:30,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:58:30,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:58:30,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:58:30,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:58:30,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:58:30,022 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:58:30,022 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:58:30,022 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:58:30,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:58:30,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:58:30,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:58:30,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:58:30,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:58:30,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:58:30,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:58:30,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:58:30,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:58:30,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:58:30,025 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:58:30,026 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:58:30,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:58:30,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:58:30,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:58:30,027 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d9514ee1b6f3a0027f117bcf81d6b26d525fe99251459ecef3c46cad248dd1f [2021-11-07 01:58:30,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:58:30,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:58:30,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:58:30,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:58:30,509 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:58:30,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-07 01:58:30,587 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/79187a086/f3fb30a6d7034e8196d0487772f2fdf6/FLAG21fd8ca79 [2021-11-07 01:58:31,652 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:58:31,653 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i [2021-11-07 01:58:31,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/79187a086/f3fb30a6d7034e8196d0487772f2fdf6/FLAG21fd8ca79 [2021-11-07 01:58:31,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/data/79187a086/f3fb30a6d7034e8196d0487772f2fdf6 [2021-11-07 01:58:32,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:58:32,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:58:32,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:58:32,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:58:32,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:58:32,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:58:32" (1/1) ... [2021-11-07 01:58:32,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de96cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:32, skipping insertion in model container [2021-11-07 01:58:32,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:58:32" (1/1) ... [2021-11-07 01:58:32,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:58:32,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:58:32,567 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-07 01:58:32,578 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-07 01:58:32,619 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:58:32,637 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:58:34,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,041 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,064 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:58:34,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:58:34,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:58:34,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:58:34,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:58:34,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:58:34,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:58:34,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:58:34,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:58:34,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:58:34,846 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:58:34,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:34,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:58:35,432 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:58:35,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:58:35,516 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-07 01:58:35,517 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-07 01:58:35,519 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:58:35,519 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:58:35,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:58:35,638 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:58:35,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:58:35,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:58:35,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:58:35,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:58:35,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:58:35,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:58:35,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:58:35,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:58:35,669 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:58:35,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,777 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:35,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:58:35,916 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:58:35,943 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4510,4523] [2021-11-07 01:58:35,944 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_043e3390-95ec-4e96-a10e-c19f0c9c50d9/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_string_harness.i[4570,4583] [2021-11-07 01:58:35,945 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:58:35,946 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:58:36,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,106 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:58:36,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:58:36,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:58:36,125 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:58:36,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:58:36,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:58:36,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:58:36,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:58:36,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:58:36,157 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:58:36,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:58:36,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:58:36,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:58:36,829 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:58:36,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36 WrapperNode [2021-11-07 01:58:36,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:58:36,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:58:36,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:58:36,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:58:36,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:58:37,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:58:37,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:58:37,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:58:37,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:58:37,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:58:37,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:58:37,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:58:37,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (1/1) ... [2021-11-07 01:58:37,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:58:37,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:58:37,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:58:37,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:58:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:58:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:58:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:58:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-07 01:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:58:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:58:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:58:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:58:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:58:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:58:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:58:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:58:37,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-07 01:58:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-07 01:58:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-07 01:58:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:58:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:58:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:58:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:58:57,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:58:57,795 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-11-07 01:58:57,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:57 BoogieIcfgContainer [2021-11-07 01:58:57,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:58:57,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:58:57,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:58:57,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:58:57,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:58:32" (1/3) ... [2021-11-07 01:58:57,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4579c24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:57, skipping insertion in model container [2021-11-07 01:58:57,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:58:36" (2/3) ... [2021-11-07 01:58:57,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4579c24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:57, skipping insertion in model container [2021-11-07 01:58:57,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:57" (3/3) ... [2021-11-07 01:58:57,822 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_string_harness.i [2021-11-07 01:58:57,829 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:58:57,829 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-07 01:58:57,889 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:58:57,896 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:58:57,896 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-07 01:58:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 223 states have (on average 1.4887892376681615) internal successors, (332), 238 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 01:58:57,932 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:57,933 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] [2021-11-07 01:58:57,933 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:58:57,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:57,940 INFO L85 PathProgramCache]: Analyzing trace with hash -340771444, now seen corresponding path program 1 times [2021-11-07 01:58:57,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:57,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605093062] [2021-11-07 01:58:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:57,967 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:57,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:57,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:58,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:59:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:02,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:59:03,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:03,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:03,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:03,392 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 01:59:03,393 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:03,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605093062] [2021-11-07 01:59:03,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605093062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:03,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:03,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:59:03,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137985412] [2021-11-07 01:59:03,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:59:03,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:59:03,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:59:03,422 INFO L87 Difference]: Start difference. First operand has 239 states, 223 states have (on average 1.4887892376681615) internal successors, (332), 238 states have internal predecessors, (332), 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 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:03,465 INFO L93 Difference]: Finished difference Result 472 states and 656 transitions. [2021-11-07 01:59:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:59:03,467 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2021-11-07 01:59:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:03,482 INFO L225 Difference]: With dead ends: 472 [2021-11-07 01:59:03,482 INFO L226 Difference]: Without dead ends: 234 [2021-11-07 01:59:03,486 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:59:03,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-07 01:59:03,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-07 01:59:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 219 states have (on average 1.3744292237442923) internal successors, (301), 233 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 01:59:03,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 301 transitions. [2021-11-07 01:59:03,547 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 301 transitions. Word has length 35 [2021-11-07 01:59:03,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:03,547 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 301 transitions. [2021-11-07 01:59:03,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:03,548 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 301 transitions. [2021-11-07 01:59:03,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 01:59:03,550 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:03,551 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] [2021-11-07 01:59:03,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:03,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:03,765 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:59:03,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:03,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1022973578, now seen corresponding path program 1 times [2021-11-07 01:59:03,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:03,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083269215] [2021-11-07 01:59:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:03,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:03,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:03,777 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:03,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:59:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:08,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:59:08,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:09,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:09,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:09,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083269215] [2021-11-07 01:59:09,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083269215] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:09,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:09,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:59:09,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101701420] [2021-11-07 01:59:09,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:59:09,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:09,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:59:09,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:59:09,261 INFO L87 Difference]: Start difference. First operand 234 states and 301 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:09,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:09,708 INFO L93 Difference]: Finished difference Result 430 states and 554 transitions. [2021-11-07 01:59:09,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:59:09,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2021-11-07 01:59:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:09,711 INFO L225 Difference]: With dead ends: 430 [2021-11-07 01:59:09,712 INFO L226 Difference]: Without dead ends: 234 [2021-11-07 01:59:09,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:59:09,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-07 01:59:09,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-07 01:59:09,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 219 states have (on average 1.365296803652968) internal successors, (299), 233 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 01:59:09,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 299 transitions. [2021-11-07 01:59:09,755 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 299 transitions. Word has length 35 [2021-11-07 01:59:09,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:09,755 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 299 transitions. [2021-11-07 01:59:09,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 299 transitions. [2021-11-07 01:59:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:59:09,767 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:09,768 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] [2021-11-07 01:59:09,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:09,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:09,985 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:59:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash -344459875, now seen corresponding path program 1 times [2021-11-07 01:59:10,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:10,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152787810] [2021-11-07 01:59:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:10,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:10,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:10,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:10,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:59:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:15,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:59:15,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:15,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:15,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:15,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152787810] [2021-11-07 01:59:15,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152787810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:15,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:15,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:59:15,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443969680] [2021-11-07 01:59:15,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:59:15,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:59:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:59:15,408 INFO L87 Difference]: Start difference. First operand 234 states and 299 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:16,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:16,003 INFO L93 Difference]: Finished difference Result 491 states and 636 transitions. [2021-11-07 01:59:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:59:16,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-07 01:59:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:16,007 INFO L225 Difference]: With dead ends: 491 [2021-11-07 01:59:16,008 INFO L226 Difference]: Without dead ends: 294 [2021-11-07 01:59:16,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:59:16,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-07 01:59:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 246. [2021-11-07 01:59:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 231 states have (on average 1.3463203463203464) internal successors, (311), 245 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 311 transitions. [2021-11-07 01:59:16,029 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 311 transitions. Word has length 41 [2021-11-07 01:59:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:16,029 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 311 transitions. [2021-11-07 01:59:16,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 311 transitions. [2021-11-07 01:59:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:59:16,032 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:16,032 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] [2021-11-07 01:59:16,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:16,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:16,245 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:59:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash -406499489, now seen corresponding path program 1 times [2021-11-07 01:59:16,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:16,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863151926] [2021-11-07 01:59:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:16,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:16,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:16,253 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:16,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:59:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:21,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:59:21,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:21,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 01:59:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:22,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:22,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 01:59:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:22,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:22,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863151926] [2021-11-07 01:59:22,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863151926] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:22,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:22,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-07 01:59:22,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098688376] [2021-11-07 01:59:22,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:59:22,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:59:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:59:22,760 INFO L87 Difference]: Start difference. First operand 246 states and 311 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:34,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:34,494 INFO L93 Difference]: Finished difference Result 910 states and 1149 transitions. [2021-11-07 01:59:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:59:34,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 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 41 [2021-11-07 01:59:34,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:34,503 INFO L225 Difference]: With dead ends: 910 [2021-11-07 01:59:34,504 INFO L226 Difference]: Without dead ends: 703 [2021-11-07 01:59:34,505 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:59:34,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2021-11-07 01:59:34,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 376. [2021-11-07 01:59:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 361 states have (on average 1.373961218836565) internal successors, (496), 375 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:34,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 496 transitions. [2021-11-07 01:59:34,534 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 496 transitions. Word has length 41 [2021-11-07 01:59:34,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:34,535 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 496 transitions. [2021-11-07 01:59:34,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:34,535 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 496 transitions. [2021-11-07 01:59:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:59:34,538 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:34,538 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:59:34,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:59:34,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:34,764 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:59:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:34,765 INFO L85 PathProgramCache]: Analyzing trace with hash 281757141, now seen corresponding path program 1 times [2021-11-07 01:59:34,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:34,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017037046] [2021-11-07 01:59:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:34,770 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:34,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:34,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:34,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:59:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:39,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:59:39,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:40,298 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:59:40,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:59:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:40,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:40,937 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:40,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017037046] [2021-11-07 01:59:40,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017037046] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:40,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:40,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:59:40,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273134861] [2021-11-07 01:59:40,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:59:40,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:40,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:59:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:59:40,940 INFO L87 Difference]: Start difference. First operand 376 states and 496 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:58,086 INFO L93 Difference]: Finished difference Result 1131 states and 1481 transitions. [2021-11-07 01:59:58,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:59:58,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 45 [2021-11-07 01:59:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:58,094 INFO L225 Difference]: With dead ends: 1131 [2021-11-07 01:59:58,094 INFO L226 Difference]: Without dead ends: 787 [2021-11-07 01:59:58,095 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:59:58,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-11-07 01:59:58,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 439. [2021-11-07 01:59:58,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 424 states have (on average 1.3608490566037736) internal successors, (577), 438 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 577 transitions. [2021-11-07 01:59:58,127 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 577 transitions. Word has length 45 [2021-11-07 01:59:58,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:58,128 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 577 transitions. [2021-11-07 01:59:58,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 577 transitions. [2021-11-07 01:59:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:59:58,130 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:58,130 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] [2021-11-07 01:59:58,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:58,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:58,345 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:59:58,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:58,345 INFO L85 PathProgramCache]: Analyzing trace with hash -2089982121, now seen corresponding path program 1 times [2021-11-07 01:59:58,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:58,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273409557] [2021-11-07 01:59:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:58,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:58,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:58,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:58,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:00:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:03,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:00:03,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:03,761 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:00:03,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 02:00:04,300 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 02:00:04,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:04,894 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 02:00:04,894 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:00:04,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273409557] [2021-11-07 02:00:04,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273409557] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:04,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:00:04,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 02:00:04,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625328840] [2021-11-07 02:00:04,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:00:04,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:00:04,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:00:04,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:00:04,897 INFO L87 Difference]: Start difference. First operand 439 states and 577 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 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 02:00:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:00:29,672 INFO L93 Difference]: Finished difference Result 1527 states and 1951 transitions. [2021-11-07 02:00:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 02:00:29,675 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 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 45 [2021-11-07 02:00:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:00:29,682 INFO L225 Difference]: With dead ends: 1527 [2021-11-07 02:00:29,682 INFO L226 Difference]: Without dead ends: 1063 [2021-11-07 02:00:29,684 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:00:29,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2021-11-07 02:00:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 440. [2021-11-07 02:00:29,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 425 states have (on average 1.3270588235294118) internal successors, (564), 439 states have internal predecessors, (564), 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 02:00:29,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 564 transitions. [2021-11-07 02:00:29,713 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 564 transitions. Word has length 45 [2021-11-07 02:00:29,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:00:29,714 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 564 transitions. [2021-11-07 02:00:29,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 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 02:00:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 564 transitions. [2021-11-07 02:00:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 02:00:29,715 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:29,716 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] [2021-11-07 02:00:29,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:00:29,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:00:29,932 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:00:29,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:29,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1064571566, now seen corresponding path program 1 times [2021-11-07 02:00:29,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:00:29,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520695121] [2021-11-07 02:00:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:29,936 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:00:29,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:00:29,938 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:00:29,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:00:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:34,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:00:34,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:35,644 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 02:00:35,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:36,181 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 02:00:36,181 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:00:36,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520695121] [2021-11-07 02:00:36,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520695121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:36,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:00:36,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-07 02:00:36,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810838065] [2021-11-07 02:00:36,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:00:36,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:00:36,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:00:36,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:00:36,184 INFO L87 Difference]: Start difference. First operand 440 states and 564 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 02:00:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:00:37,241 INFO L93 Difference]: Finished difference Result 527 states and 680 transitions. [2021-11-07 02:00:37,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:00:37,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 47 [2021-11-07 02:00:37,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:00:37,246 INFO L225 Difference]: With dead ends: 527 [2021-11-07 02:00:37,246 INFO L226 Difference]: Without dead ends: 525 [2021-11-07 02:00:37,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:00:37,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-11-07 02:00:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 438. [2021-11-07 02:00:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 424 states have (on average 1.3231132075471699) internal successors, (561), 437 states have internal predecessors, (561), 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 02:00:37,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 561 transitions. [2021-11-07 02:00:37,272 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 561 transitions. Word has length 47 [2021-11-07 02:00:37,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:00:37,272 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 561 transitions. [2021-11-07 02:00:37,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 02:00:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 561 transitions. [2021-11-07 02:00:37,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 02:00:37,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:37,274 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] [2021-11-07 02:00:37,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:00:37,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:00:37,489 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:00:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:37,489 INFO L85 PathProgramCache]: Analyzing trace with hash 851202288, now seen corresponding path program 1 times [2021-11-07 02:00:37,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:00:37,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712480448] [2021-11-07 02:00:37,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:37,495 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:00:37,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:00:37,497 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:00:37,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:00:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:43,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 02:00:43,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:46,921 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-07 02:00:46,922 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 682 treesize of output 234 [2021-11-07 02:00:47,035 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 02:00:47,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:48,420 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 02:00:48,420 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:00:48,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712480448] [2021-11-07 02:00:48,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712480448] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:00:48,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:00:48,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 12 [2021-11-07 02:00:48,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545671560] [2021-11-07 02:00:48,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 02:00:48,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:00:48,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 02:00:48,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:00:48,424 INFO L87 Difference]: Start difference. First operand 438 states and 561 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:30,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:30,503 INFO L93 Difference]: Finished difference Result 1360 states and 1655 transitions. [2021-11-07 02:01:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-07 02:01:30,504 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-07 02:01:30,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:30,513 INFO L225 Difference]: With dead ends: 1360 [2021-11-07 02:01:30,513 INFO L226 Difference]: Without dead ends: 1350 [2021-11-07 02:01:30,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=878, Invalid=3154, Unknown=0, NotChecked=0, Total=4032 [2021-11-07 02:01:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2021-11-07 02:01:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 606. [2021-11-07 02:01:30,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 592 states have (on average 1.3277027027027026) internal successors, (786), 605 states have internal predecessors, (786), 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 02:01:30,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 786 transitions. [2021-11-07 02:01:30,564 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 786 transitions. Word has length 49 [2021-11-07 02:01:30,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:30,565 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 786 transitions. [2021-11-07 02:01:30,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:01:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 786 transitions. [2021-11-07 02:01:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 02:01:30,567 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:30,567 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] [2021-11-07 02:01:30,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 02:01:30,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:30,793 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:01:30,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:30,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1754060145, now seen corresponding path program 1 times [2021-11-07 02:01:30,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:30,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210904926] [2021-11-07 02:01:30,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:30,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:30,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:30,798 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:30,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:01:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:35,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:01:35,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:36,581 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 02:01:36,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:37,422 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 02:01:37,422 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:37,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210904926] [2021-11-07 02:01:37,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210904926] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:37,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:37,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:01:37,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697371507] [2021-11-07 02:01:37,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:01:37,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:37,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:01:37,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:37,424 INFO L87 Difference]: Start difference. First operand 606 states and 786 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 02:01:37,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:37,613 INFO L93 Difference]: Finished difference Result 1244 states and 1616 transitions. [2021-11-07 02:01:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:01:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2021-11-07 02:01:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:37,626 INFO L225 Difference]: With dead ends: 1244 [2021-11-07 02:01:37,626 INFO L226 Difference]: Without dead ends: 1104 [2021-11-07 02:01:37,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:37,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2021-11-07 02:01:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1002. [2021-11-07 02:01:37,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 988 states have (on average 1.3137651821862348) internal successors, (1298), 1001 states have internal predecessors, (1298), 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 02:01:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1298 transitions. [2021-11-07 02:01:37,681 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1298 transitions. Word has length 51 [2021-11-07 02:01:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:37,681 INFO L470 AbstractCegarLoop]: Abstraction has 1002 states and 1298 transitions. [2021-11-07 02:01:37,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 02:01:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1298 transitions. [2021-11-07 02:01:37,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 02:01:37,683 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:37,683 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] [2021-11-07 02:01:37,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:37,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:37,909 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:01:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1961756626, now seen corresponding path program 1 times [2021-11-07 02:01:37,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:37,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808820889] [2021-11-07 02:01:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:37,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:37,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:37,915 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:37,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:01:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:43,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 02:01:43,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:46,178 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-07 02:01:46,178 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 633 treesize of output 217 [2021-11-07 02:01:46,245 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 02:01:46,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:47,578 INFO L354 Elim1Store]: treesize reduction 1168, result has 0.1 percent of original size [2021-11-07 02:01:47,578 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 680 treesize of output 1 [2021-11-07 02:01:47,642 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 02:01:47,642 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:47,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808820889] [2021-11-07 02:01:47,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808820889] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:47,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:47,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-07 02:01:47,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70803310] [2021-11-07 02:01:47,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:01:47,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:47,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:01:47,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:01:47,644 INFO L87 Difference]: Start difference. First operand 1002 states and 1298 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 02:02:08,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:08,411 INFO L93 Difference]: Finished difference Result 1399 states and 1783 transitions. [2021-11-07 02:02:08,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 02:02:08,412 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 51 [2021-11-07 02:02:08,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:08,419 INFO L225 Difference]: With dead ends: 1399 [2021-11-07 02:02:08,420 INFO L226 Difference]: Without dead ends: 1395 [2021-11-07 02:02:08,421 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-11-07 02:02:08,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2021-11-07 02:02:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1002. [2021-11-07 02:02:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 988 states have (on average 1.3097165991902835) internal successors, (1294), 1001 states have internal predecessors, (1294), 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 02:02:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1294 transitions. [2021-11-07 02:02:08,481 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1294 transitions. Word has length 51 [2021-11-07 02:02:08,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:08,482 INFO L470 AbstractCegarLoop]: Abstraction has 1002 states and 1294 transitions. [2021-11-07 02:02:08,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 02:02:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1294 transitions. [2021-11-07 02:02:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 02:02:08,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:08,484 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 02:02:08,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:08,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:08,698 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 02:02:08,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash -200657010, now seen corresponding path program 1 times [2021-11-07 02:02:08,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:08,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344363577] [2021-11-07 02:02:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:08,703 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:08,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:08,704 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:08,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_043e3390-95ec-4e96-a10e-c19f0c9c50d9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:02:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:14,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 02:02:14,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:14,845 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:02:14,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 02:02:15,043 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 02:02:15,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:27,227 WARN L207 SmtUtils]: Spent 11.58 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 02:02:27,232 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 02:02:27,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772