./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:10:51,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:10:51,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:10:51,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:10:51,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:10:51,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:10:51,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:10:51,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:10:51,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:10:51,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:10:51,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:10:51,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:10:51,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:10:51,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:10:51,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:10:51,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:10:51,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:10:51,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:10:51,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:10:51,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:10:51,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:10:51,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:10:51,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:10:51,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:10:51,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:10:51,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:10:51,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:10:51,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:10:51,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:10:51,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:10:51,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:10:51,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:10:51,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:10:51,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:10:51,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:10:51,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:10:51,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:10:51,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:10:51,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:10:51,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:10:51,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:10:51,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:10:51,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:10:51,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:10:51,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:10:51,530 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:10:51,530 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:10:51,530 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:10:51,530 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:10:51,531 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:10:51,531 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:10:51,531 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:10:51,532 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:10:51,532 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:10:51,533 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:10:51,533 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:10:51,533 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:10:51,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:10:51,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:10:51,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:10:51,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:10:51,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:10:51,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:10:51,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:10:51,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:10:51,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:10:51,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:10:51,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:10:51,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:10:51,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:10:51,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:10:51,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:10:51,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:10:51,539 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:10:51,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:10:51,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:10:51,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:10:51,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:10:51,540 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e [2021-11-07 01:10:51,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:10:51,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:10:51,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:10:51,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:10:51,818 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:10:51,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-07 01:10:51,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/a87db5c3e/3c3ee8a2c8274576af59c6c480707c1e/FLAG18014e0e5 [2021-11-07 01:10:52,668 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:10:52,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-07 01:10:52,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/a87db5c3e/3c3ee8a2c8274576af59c6c480707c1e/FLAG18014e0e5 [2021-11-07 01:10:52,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/a87db5c3e/3c3ee8a2c8274576af59c6c480707c1e [2021-11-07 01:10:52,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:10:52,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:10:52,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:10:52,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:10:52,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:10:52,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:10:52" (1/1) ... [2021-11-07 01:10:52,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd10674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:52, skipping insertion in model container [2021-11-07 01:10:52,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:10:52" (1/1) ... [2021-11-07 01:10:52,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:10:52,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:10:53,251 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-07 01:10:53,262 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-07 01:10:53,299 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:10:53,315 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:10:54,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:54,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:10:54,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:10:54,850 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:10:54,851 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:10:54,853 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:10:54,853 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:10:54,854 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:10:54,855 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:10:54,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:10:54,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:10:55,071 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:10:55,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:55,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:55,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:10:55,305 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 01:10:55,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@336fe6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:55, skipping insertion in model container [2021-11-07 01:10:55,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:10:55,306 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:10:55,309 INFO L168 Benchmark]: Toolchain (without parser) took 2560.89 ms. Allocated memory is still 142.6 MB. Free memory was 103.4 MB in the beginning and 66.0 MB in the end (delta: 37.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:10:55,309 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:10:55,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2558.24 ms. Allocated memory is still 142.6 MB. Free memory was 103.1 MB in the beginning and 66.0 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:10:55,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2558.24 ms. Allocated memory is still 142.6 MB. Free memory was 103.1 MB in the beginning and 66.0 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:10:57,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:10:57,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:10:57,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:10:57,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:10:57,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:10:57,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:10:57,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:10:57,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:10:57,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:10:57,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:10:57,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:10:57,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:10:57,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:10:58,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:10:58,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:10:58,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:10:58,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:10:58,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:10:58,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:10:58,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:10:58,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:10:58,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:10:58,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:10:58,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:10:58,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:10:58,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:10:58,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:10:58,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:10:58,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:10:58,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:10:58,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:10:58,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:10:58,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:10:58,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:10:58,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:10:58,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:10:58,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:10:58,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:10:58,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:10:58,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:10:58,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:10:58,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:10:58,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:10:58,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:10:58,153 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:10:58,153 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:10:58,153 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:10:58,153 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:10:58,154 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:10:58,154 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:10:58,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:10:58,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:10:58,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:10:58,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:10:58,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:10:58,158 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:10:58,158 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:10:58,158 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:10:58,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:10:58,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:10:58,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:10:58,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:10:58,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:10:58,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:10:58,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:10:58,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:10:58,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:10:58,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:10:58,161 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:10:58,161 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:10:58,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:10:58,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:10:58,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:10:58,163 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e [2021-11-07 01:10:58,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:10:58,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:10:58,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:10:58,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:10:58,671 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:10:58,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-07 01:10:58,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/e894ea506/d79c423e48a94adc8cd381c4b9e9c3d5/FLAGa4fd6f2fe [2021-11-07 01:10:59,672 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:10:59,672 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-07 01:10:59,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/e894ea506/d79c423e48a94adc8cd381c4b9e9c3d5/FLAGa4fd6f2fe [2021-11-07 01:11:00,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/data/e894ea506/d79c423e48a94adc8cd381c4b9e9c3d5 [2021-11-07 01:11:00,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:11:00,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:11:00,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:00,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:11:00,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:11:00,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:00" (1/1) ... [2021-11-07 01:11:00,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3cff5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:00, skipping insertion in model container [2021-11-07 01:11:00,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:00" (1/1) ... [2021-11-07 01:11:00,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:11:00,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:00,615 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-07 01:11:00,623 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-07 01:11:00,658 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:11:00,667 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:11:01,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:01,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,262 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:11:02,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:11:02,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:11:02,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:11:02,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:11:02,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:11:02,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:11:02,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:11:02,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:11:02,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:11:02,428 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:11:02,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,526 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:02,689 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:11:02,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:02,754 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-07 01:11:02,755 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-07 01:11:02,756 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:11:02,757 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:11:02,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,822 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:02,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:11:02,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:11:02,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:11:02,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:11:02,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:11:02,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:11:02,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:11:02,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:11:02,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:11:02,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:11:02,964 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:11:03,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:03,130 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:11:03,144 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-07 01:11:03,145 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_d513c5b5-963a-48ca-ba4b-c12c0dd726af/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-07 01:11:03,146 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:11:03,147 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:11:03,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,258 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:11:03,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:11:03,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:11:03,261 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:11:03,262 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:11:03,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:11:03,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:11:03,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:11:03,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:11:03,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:11:03,286 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:11:03,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:03,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:03,890 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:11:03,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03 WrapperNode [2021-11-07 01:11:03,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:03,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:11:03,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:11:03,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:11:03,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:11:04,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:11:04,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:11:04,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:11:04,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:11:04,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:11:04,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:11:04,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:11:04,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (1/1) ... [2021-11-07 01:11:04,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:11:04,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:11:04,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:11:04,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:11:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:11:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:11:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:11:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:11:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:11:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:11:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:11:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:11:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:11:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:11:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:11:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:11:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:11:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:11:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:11:22,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:11:22,106 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-07 01:11:22,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:11:22 BoogieIcfgContainer [2021-11-07 01:11:22,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:11:22,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:11:22,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:11:22,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:11:22,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:11:00" (1/3) ... [2021-11-07 01:11:22,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46011b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:11:22, skipping insertion in model container [2021-11-07 01:11:22,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:03" (2/3) ... [2021-11-07 01:11:22,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46011b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:11:22, skipping insertion in model container [2021-11-07 01:11:22,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:11:22" (3/3) ... [2021-11-07 01:11:22,120 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_nospec_harness.i [2021-11-07 01:11:22,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:11:22,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 01:11:22,184 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:11:22,190 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 01:11:22,191 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 01:11:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 117 states have (on average 1.4871794871794872) internal successors, (174), 127 states have internal predecessors, (174), 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 01:11:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:11:22,215 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:22,216 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] [2021-11-07 01:11:22,217 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:11:22,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1129112974, now seen corresponding path program 1 times [2021-11-07 01:11:22,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:22,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774484559] [2021-11-07 01:11:22,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:22,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:22,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:22,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:22,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:11:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:27,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:11:27,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:27,283 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 01:11:27,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:27,385 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 01:11:27,386 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:27,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774484559] [2021-11-07 01:11:27,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774484559] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:27,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:27,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:11:27,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280977916] [2021-11-07 01:11:27,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:11:27,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:27,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:11:27,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:11:27,410 INFO L87 Difference]: Start difference. First operand has 128 states, 117 states have (on average 1.4871794871794872) internal successors, (174), 127 states have internal predecessors, (174), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 01:11:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:27,436 INFO L93 Difference]: Finished difference Result 251 states and 341 transitions. [2021-11-07 01:11:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:11:27,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-11-07 01:11:27,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:27,447 INFO L225 Difference]: With dead ends: 251 [2021-11-07 01:11:27,447 INFO L226 Difference]: Without dead ends: 120 [2021-11-07 01:11:27,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 01:11:27,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-07 01:11:27,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-07 01:11:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 110 states have (on average 1.3545454545454545) internal successors, (149), 119 states have internal predecessors, (149), 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 01:11:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2021-11-07 01:11:27,490 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 26 [2021-11-07 01:11:27,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:27,490 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2021-11-07 01:11:27,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 01:11:27,491 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2021-11-07 01:11:27,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:11:27,492 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:27,493 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] [2021-11-07 01:11:27,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:27,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:27,694 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:11:27,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:27,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1522139984, now seen corresponding path program 1 times [2021-11-07 01:11:27,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:27,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555157264] [2021-11-07 01:11:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:27,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:27,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:27,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:27,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:11:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:32,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:11:32,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:32,297 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 01:11:32,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:32,434 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 01:11:32,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:32,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555157264] [2021-11-07 01:11:32,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555157264] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:32,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:32,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:11:32,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279934565] [2021-11-07 01:11:32,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:11:32,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:32,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:11:32,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:11:32,438 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 01:11:32,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:32,728 INFO L93 Difference]: Finished difference Result 222 states and 274 transitions. [2021-11-07 01:11:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:11:32,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-11-07 01:11:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:32,734 INFO L225 Difference]: With dead ends: 222 [2021-11-07 01:11:32,734 INFO L226 Difference]: Without dead ends: 120 [2021-11-07 01:11:32,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 01:11:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-07 01:11:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-07 01:11:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 110 states have (on average 1.3363636363636364) internal successors, (147), 119 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:32,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 147 transitions. [2021-11-07 01:11:32,747 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 147 transitions. Word has length 26 [2021-11-07 01:11:32,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:32,747 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 147 transitions. [2021-11-07 01:11:32,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 01:11:32,747 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 147 transitions. [2021-11-07 01:11:32,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:11:32,749 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:32,749 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] [2021-11-07 01:11:32,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:32,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:32,951 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:11:32,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1685139152, now seen corresponding path program 1 times [2021-11-07 01:11:32,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:32,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476854107] [2021-11-07 01:11:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:32,956 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:32,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:32,957 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:32,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:11:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:37,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 01:11:37,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:38,206 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:11:38,207 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 155 treesize of output 59 [2021-11-07 01:11:38,307 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 01:11:38,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:48,875 WARN L207 SmtUtils]: Spent 10.14 s on a formula simplification. DAG size of input: 523 DAG size of output: 169 [2021-11-07 01:11:48,880 INFO L354 Elim1Store]: treesize reduction 1138, result has 27.7 percent of original size [2021-11-07 01:11:48,881 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 128 treesize of output 470 [2021-11-07 01:16:58,654 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 01:16:58,654 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:58,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476854107] [2021-11-07 01:16:58,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476854107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:58,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:58,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-07 01:16:58,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880338554] [2021-11-07 01:16:58,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:16:58,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:58,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:16:58,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:16:58,659 INFO L87 Difference]: Start difference. First operand 120 states and 147 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:12,770 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2021-11-07 01:17:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:17:12,774 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:17:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:12,777 INFO L225 Difference]: With dead ends: 315 [2021-11-07 01:17:12,777 INFO L226 Difference]: Without dead ends: 224 [2021-11-07 01:17:12,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:17:12,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-07 01:17:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 136. [2021-11-07 01:17:12,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 126 states have (on average 1.3095238095238095) internal successors, (165), 135 states have internal predecessors, (165), 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 01:17:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2021-11-07 01:17:12,797 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 30 [2021-11-07 01:17:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:12,803 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2021-11-07 01:17:12,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:17:12,803 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2021-11-07 01:17:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:17:12,805 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:12,805 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] [2021-11-07 01:17:12,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:17:13,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:13,019 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:17:13,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:13,020 INFO L85 PathProgramCache]: Analyzing trace with hash 875792526, now seen corresponding path program 1 times [2021-11-07 01:17:13,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:13,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015703052] [2021-11-07 01:17:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:13,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:13,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:13,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:13,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:17:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:17,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:17:17,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:17,589 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 01:17:17,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:17,812 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 01:17:17,812 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:17,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015703052] [2021-11-07 01:17:17,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015703052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:17,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:17,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:17:17,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108139483] [2021-11-07 01:17:17,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:17:17,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:17,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:17:17,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:17:17,815 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 01:17:20,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:20,412 INFO L93 Difference]: Finished difference Result 280 states and 334 transitions. [2021-11-07 01:17:20,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:17:20,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-11-07 01:17:20,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:20,418 INFO L225 Difference]: With dead ends: 280 [2021-11-07 01:17:20,419 INFO L226 Difference]: Without dead ends: 213 [2021-11-07 01:17:20,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:17:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-07 01:17:20,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 138. [2021-11-07 01:17:20,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 128 states have (on average 1.3046875) internal successors, (167), 137 states have internal predecessors, (167), 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 01:17:20,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2021-11-07 01:17:20,439 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 30 [2021-11-07 01:17:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:20,439 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2021-11-07 01:17:20,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 01:17:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2021-11-07 01:17:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:17:20,441 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:20,442 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] [2021-11-07 01:17:20,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:17:20,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:20,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:17:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:20,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2116680645, now seen corresponding path program 1 times [2021-11-07 01:17:20,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:20,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095023841] [2021-11-07 01:17:20,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:20,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:20,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:20,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:20,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:17:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:25,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:17:25,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:25,759 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 01:17:25,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:25,926 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 01:17:25,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:25,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095023841] [2021-11-07 01:17:25,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095023841] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:25,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:25,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:17:25,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154203918] [2021-11-07 01:17:25,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:17:25,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:25,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:17:25,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:17:25,929 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 01:17:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:28,363 INFO L93 Difference]: Finished difference Result 280 states and 333 transitions. [2021-11-07 01:17:28,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:17:28,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-11-07 01:17:28,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:28,368 INFO L225 Difference]: With dead ends: 280 [2021-11-07 01:17:28,369 INFO L226 Difference]: Without dead ends: 213 [2021-11-07 01:17:28,369 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:17:28,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-07 01:17:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 136. [2021-11-07 01:17:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 135 states have internal predecessors, (164), 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 01:17:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2021-11-07 01:17:28,379 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 31 [2021-11-07 01:17:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:28,380 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2021-11-07 01:17:28,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 01:17:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2021-11-07 01:17:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:17:28,388 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:28,388 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] [2021-11-07 01:17:28,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:17:28,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:28,603 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:17:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1868212695, now seen corresponding path program 1 times [2021-11-07 01:17:28,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:28,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137200279] [2021-11-07 01:17:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:28,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:28,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:28,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:28,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:17:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:33,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:17:33,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:17:33,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:33,407 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 01:17:33,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:33,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137200279] [2021-11-07 01:17:33,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137200279] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:33,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:33,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:17:33,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225296312] [2021-11-07 01:17:33,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:17:33,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:17:33,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:17:33,410 INFO L87 Difference]: Start difference. First operand 136 states and 164 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 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 01:17:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:34,418 INFO L93 Difference]: Finished difference Result 229 states and 269 transitions. [2021-11-07 01:17:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:17:34,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 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 32 [2021-11-07 01:17:34,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:34,421 INFO L225 Difference]: With dead ends: 229 [2021-11-07 01:17:34,421 INFO L226 Difference]: Without dead ends: 223 [2021-11-07 01:17:34,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:17:34,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-07 01:17:34,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 148. [2021-11-07 01:17:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 138 states have (on average 1.2753623188405796) internal successors, (176), 147 states have internal predecessors, (176), 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 01:17:34,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2021-11-07 01:17:34,432 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 32 [2021-11-07 01:17:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:34,433 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2021-11-07 01:17:34,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 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 01:17:34,433 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2021-11-07 01:17:34,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 01:17:34,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:34,435 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] [2021-11-07 01:17:34,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 01:17:34,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:34,643 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:17:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2047805407, now seen corresponding path program 1 times [2021-11-07 01:17:34,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:34,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440107536] [2021-11-07 01:17:34,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:34,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:34,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:34,654 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:34,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d513c5b5-963a-48ca-ba4b-c12c0dd726af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:18:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:11,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 01:18:11,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:11,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:11,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:18:11,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:18:11,900 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:18:11,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:18:11,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:18:11,902 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:18:11,903 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:18:11,903 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:18:12,105 INFO L354 Elim1Store]: treesize reduction 136, result has 29.5 percent of original size [2021-11-07 01:18:12,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 93 treesize of output 145 [2021-11-07 01:18:12,391 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 01:18:12,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:12,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:12,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 511 [2021-11-07 01:18:14,835 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 8))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base|) (bvadd (_ bv8 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) v_DerPreprocessor_2) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset| (_ bv6 64)) ((_ extract 55 48) (_ bv0 64))) (bvadd (_ bv7 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.offset|) ((_ extract 63 56) (_ bv0 64)))) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd (_ bv7 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset)) (select .cse0 (bvadd (_ bv6 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv5 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv4 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv3 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv2 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv1 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))))) is different from false [2021-11-07 01:18:16,930 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 8))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base|) (_ bv8 64) v_DerPreprocessor_2) (_ bv0 64) ((_ extract 7 0) (_ bv0 64))) (_ bv1 64) ((_ extract 15 8) (_ bv0 64))) (_ bv2 64) ((_ extract 23 16) (_ bv0 64))) (_ bv3 64) ((_ extract 31 24) (_ bv0 64))) (_ bv4 64) ((_ extract 39 32) (_ bv0 64))) (_ bv5 64) ((_ extract 47 40) (_ bv0 64))) (_ bv6 64) ((_ extract 55 48) (_ bv0 64))) (_ bv7 64) ((_ extract 63 56) (_ bv0 64)))) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.base))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd (_ bv7 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset)) (select .cse0 (bvadd (_ bv6 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv5 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv4 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv3 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv2 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 (bvadd (_ bv1 64) c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))) (select .cse0 c_ULTIMATE.start_aws_byte_cursor_advance_nospec_~cursor.offset))))) is different from false [2021-11-07 01:18:19,183 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 8))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_cursor_advance_nospec_~#rv~7.base|) (_ bv8 64) v_DerPreprocessor_2) (_ bv0 64) ((_ extract 7 0) (_ bv0 64))) (_ bv1 64) ((_ extract 15 8) (_ bv0 64))) (_ bv2 64) ((_ extract 23 16) (_ bv0 64))) (_ bv3 64) ((_ extract 31 24) (_ bv0 64))) (_ bv4 64) ((_ extract 39 32) (_ bv0 64))) (_ bv5 64) ((_ extract 47 40) (_ bv0 64))) (_ bv6 64) ((_ extract 55 48) (_ bv0 64))) (_ bv7 64) ((_ extract 63 56) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv7 64))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|))) (select .cse0 (bvadd (_ bv2 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset| (_ bv1 64)))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2.offset|))))) is different from false