./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs --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 f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:17:34,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:17:34,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:17:34,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:17:34,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:17:34,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:17:34,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:17:34,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:17:34,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:17:34,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:17:34,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:17:34,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:17:34,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:17:34,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:17:34,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:17:34,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:17:34,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:17:34,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:17:34,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:17:34,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:17:34,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:17:34,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:17:34,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:17:34,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:17:34,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:17:34,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:17:34,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:17:34,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:17:34,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:17:34,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:17:34,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:17:34,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:17:34,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:17:34,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:17:34,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:17:34,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:17:34,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:17:34,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:17:34,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:17:34,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:17:34,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:17:34,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:17:34,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:17:34,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:17:34,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:17:34,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:17:34,777 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:17:34,778 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:17:34,778 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:17:34,778 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:17:34,784 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:17:34,784 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:17:34,785 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:17:34,786 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:17:34,786 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:17:34,786 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:17:34,786 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:17:34,787 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:17:34,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:17:34,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:17:34,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:17:34,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:17:34,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:17:34,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:17:34,788 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:17:34,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:17:34,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:17:34,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:17:34,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:17:34,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:17:34,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:17:34,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:17:34,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:17:34,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:17:34,793 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:17:34,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:17:34,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:17:34,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:17:34,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:17:34,793 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af [2021-11-19 14:17:35,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:17:35,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:17:35,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:17:35,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:17:35,158 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:17:35,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-19 14:17:35,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/59ea2cc17/5813613ae4804018b892dfbee2c56fb8/FLAG1a9abffa0 [2021-11-19 14:17:36,117 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:17:36,118 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-19 14:17:36,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/59ea2cc17/5813613ae4804018b892dfbee2c56fb8/FLAG1a9abffa0 [2021-11-19 14:17:36,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/59ea2cc17/5813613ae4804018b892dfbee2c56fb8 [2021-11-19 14:17:36,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:17:36,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:17:36,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:17:36,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:17:36,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:17:36,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:17:36" (1/1) ... [2021-11-19 14:17:36,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a72a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:36, skipping insertion in model container [2021-11-19 14:17:36,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:17:36" (1/1) ... [2021-11-19 14:17:36,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:17:36,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:17:37,059 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-19 14:17:37,066 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-19 14:17:37,093 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:17:37,099 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:17:38,049 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,050 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,051 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,052 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,053 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,068 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,069 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,071 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,072 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:17:38,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:17:38,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:17:38,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:17:38,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:17:38,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:17:38,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:17:38,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:17:38,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:17:38,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:17:38,760 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:17:38,925 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:38,926 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:39,017 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:17:39,112 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) [2021-11-19 14:17:39,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73e4fba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:39, skipping insertion in model container [2021-11-19 14:17:39,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:17:39,117 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:17:39,121 INFO L158 Benchmark]: Toolchain (without parser) took 2499.80ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 86.8MB in the beginning and 86.2MB in the end (delta: 607.1kB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-11-19 14:17:39,121 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:17:39,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2495.73ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 86.4MB in the beginning and 86.2MB in the end (delta: 188.4kB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-11-19 14:17:39,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2495.73ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 86.4MB in the beginning and 86.2MB in the end (delta: 188.4kB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs --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 f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:17:41,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:17:41,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:17:41,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:17:41,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:17:41,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:17:41,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:17:41,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:17:41,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:17:41,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:17:41,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:17:41,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:17:41,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:17:41,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:17:41,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:17:41,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:17:41,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:17:41,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:17:41,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:17:41,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:17:41,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:17:41,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:17:41,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:17:41,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:17:41,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:17:41,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:17:41,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:17:41,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:17:41,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:17:41,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:17:41,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:17:41,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:17:41,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:17:41,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:17:41,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:17:41,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:17:41,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:17:41,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:17:41,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:17:41,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:17:41,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:17:41,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:17:41,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:17:41,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:17:41,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:17:41,568 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:17:41,568 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:17:41,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:17:41,569 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:17:41,569 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:17:41,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:17:41,569 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:17:41,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:17:41,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:17:41,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:17:41,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:17:41,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:17:41,573 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:17:41,573 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:17:41,573 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:17:41,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:17:41,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:17:41,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:17:41,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:17:41,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:17:41,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:17:41,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:17:41,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:17:41,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:17:41,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:17:41,576 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:17:41,576 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:17:41,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:17:41,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:17:41,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:17:41,577 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af [2021-11-19 14:17:41,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:17:42,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:17:42,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:17:42,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:17:42,011 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:17:42,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-19 14:17:42,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/f50ff9286/80204e77bed44a7f8660993ee917e2d8/FLAG87c8825be [2021-11-19 14:17:43,020 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:17:43,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2021-11-19 14:17:43,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/f50ff9286/80204e77bed44a7f8660993ee917e2d8/FLAG87c8825be [2021-11-19 14:17:43,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/data/f50ff9286/80204e77bed44a7f8660993ee917e2d8 [2021-11-19 14:17:43,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:17:43,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:17:43,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:17:43,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:17:43,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:17:43,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:17:43" (1/1) ... [2021-11-19 14:17:43,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7bb0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:43, skipping insertion in model container [2021-11-19 14:17:43,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:17:43" (1/1) ... [2021-11-19 14:17:43,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:17:43,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:17:43,938 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-19 14:17:43,945 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-19 14:17:43,971 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:17:43,977 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:17:45,027 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,029 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,030 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,031 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,033 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,054 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,060 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,064 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,065 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:17:45,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:17:45,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:17:45,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:17:45,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:17:45,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:17:45,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:17:45,498 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:17:45,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:17:45,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:17:45,654 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:17:45,801 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,801 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:45,907 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:17:45,988 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:17:46,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:17:46,053 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-19 14:17:46,054 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-19 14:17:46,055 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:17:46,058 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:17:46,123 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,124 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,124 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,125 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,126 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,150 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,153 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,154 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,155 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:17:46,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:17:46,220 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:17:46,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:17:46,225 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:17:46,226 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:17:46,227 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:17:46,227 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:17:46,228 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:17:46,228 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:17:46,261 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:17:46,352 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,352 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,390 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:17:46,437 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:17:46,463 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2021-11-19 14:17:46,463 WARN L230 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_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2021-11-19 14:17:46,465 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:17:46,466 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:17:46,535 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,535 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,535 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,536 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,536 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,541 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,542 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,543 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,543 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:17:46,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:17:46,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:17:46,577 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:17:46,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:17:46,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:17:46,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:17:46,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:17:46,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:17:46,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:17:46,625 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:17:46,696 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,697 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:17:46,766 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:17:47,215 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:17:47,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47 WrapperNode [2021-11-19 14:17:47,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:17:47,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:17:47,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:17:47,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:17:47,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,532 INFO L137 Inliner]: procedures = 713, calls = 2631, calls flagged for inlining = 63, calls inlined = 9, statements flattened = 860 [2021-11-19 14:17:47,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:17:47,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:17:47,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:17:47,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:17:47,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:17:47,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:17:47,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:17:47,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:17:47,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (1/1) ... [2021-11-19 14:17:47,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:17:47,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:17:47,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:17:47,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:17:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2021-11-19 14:17:47,742 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2021-11-19 14:17:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-19 14:17:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-19 14:17:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:17:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 14:17:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 14:17:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:17:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:17:47,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:17:47,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:17:47,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:17:47,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:17:47,746 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-19 14:17:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-19 14:17:47,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:17:47,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:17:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:17:47,746 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:17:47,747 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:17:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:17:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-19 14:17:47,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-19 14:17:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:17:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:17:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:17:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:17:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:17:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:17:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:17:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:17:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 14:17:47,749 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 14:17:48,148 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:17:48,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:17:52,670 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:17:52,679 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:17:52,679 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:17:52,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:52 BoogieIcfgContainer [2021-11-19 14:17:52,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:17:52,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:17:52,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:17:52,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:17:52,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:17:43" (1/3) ... [2021-11-19 14:17:52,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67590029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:52, skipping insertion in model container [2021-11-19 14:17:52,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:17:47" (2/3) ... [2021-11-19 14:17:52,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67590029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:17:52, skipping insertion in model container [2021-11-19 14:17:52,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:17:52" (3/3) ... [2021-11-19 14:17:52,691 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_c_str_harness.i [2021-11-19 14:17:52,697 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:17:52,698 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:17:52,755 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:17:52,762 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 [2021-11-19 14:17:52,763 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:17:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 83 states have internal predecessors, (102), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-19 14:17:52,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 14:17:52,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:52,801 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:52,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:52,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:52,808 INFO L85 PathProgramCache]: Analyzing trace with hash -32550495, now seen corresponding path program 1 times [2021-11-19 14:17:52,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:52,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941495146] [2021-11-19 14:17:52,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:52,830 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:52,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:52,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:52,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:17:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:53,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:17:53,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-19 14:17:54,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:54,650 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-11-19 14:17:54,651 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:54,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941495146] [2021-11-19 14:17:54,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941495146] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:54,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:54,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:17:54,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275366566] [2021-11-19 14:17:54,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:54,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:17:54,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:54,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:17:54,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:17:54,711 INFO L87 Difference]: Start difference. First operand has 123 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 83 states have internal predecessors, (102), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:17:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:54,786 INFO L93 Difference]: Finished difference Result 241 states and 345 transitions. [2021-11-19 14:17:54,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:17:54,789 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2021-11-19 14:17:54,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:54,815 INFO L225 Difference]: With dead ends: 241 [2021-11-19 14:17:54,815 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 14:17:54,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:17:54,829 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:54,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:54,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 14:17:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 14:17:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 78 states have internal predecessors, (94), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-19 14:17:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 155 transitions. [2021-11-19 14:17:54,919 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 155 transitions. Word has length 116 [2021-11-19 14:17:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:54,920 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 155 transitions. [2021-11-19 14:17:54,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:17:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 155 transitions. [2021-11-19 14:17:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 14:17:54,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:54,933 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:54,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:55,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:55,149 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:55,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1139488593, now seen corresponding path program 1 times [2021-11-19 14:17:55,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:55,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732106472] [2021-11-19 14:17:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:55,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:55,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:55,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:17:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:56,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:17:56,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-19 14:17:56,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-19 14:17:57,255 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:57,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732106472] [2021-11-19 14:17:57,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732106472] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:57,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:57,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 14:17:57,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372367735] [2021-11-19 14:17:57,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:57,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:57,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:57,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:57,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:57,260 INFO L87 Difference]: Start difference. First operand 118 states and 155 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:17:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:57,495 INFO L93 Difference]: Finished difference Result 211 states and 280 transitions. [2021-11-19 14:17:57,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:17:57,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 116 [2021-11-19 14:17:57,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:57,503 INFO L225 Difference]: With dead ends: 211 [2021-11-19 14:17:57,503 INFO L226 Difference]: Without dead ends: 121 [2021-11-19 14:17:57,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:57,511 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 44 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:57,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 366 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:17:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-19 14:17:57,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-11-19 14:17:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 81 states have internal predecessors, (96), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2021-11-19 14:17:57,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 159 transitions. [2021-11-19 14:17:57,549 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 159 transitions. Word has length 116 [2021-11-19 14:17:57,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:57,552 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 159 transitions. [2021-11-19 14:17:57,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:17:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 159 transitions. [2021-11-19 14:17:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-19 14:17:57,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:57,567 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:17:57,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:57,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:57,784 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:17:57,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:57,785 INFO L85 PathProgramCache]: Analyzing trace with hash -787565290, now seen corresponding path program 1 times [2021-11-19 14:17:57,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:57,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731470177] [2021-11-19 14:17:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:57,798 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:57,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:57,799 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:57,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:17:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:58,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1522 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:17:58,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:59,296 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-19 14:17:59,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-19 14:17:59,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:59,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731470177] [2021-11-19 14:17:59,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731470177] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:17:59,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:17:59,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2021-11-19 14:17:59,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614680109] [2021-11-19 14:17:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:59,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:17:59,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:59,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:17:59,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:59,796 INFO L87 Difference]: Start difference. First operand 121 states and 159 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:18:00,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:00,139 INFO L93 Difference]: Finished difference Result 198 states and 259 transitions. [2021-11-19 14:18:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:18:00,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 118 [2021-11-19 14:18:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:00,143 INFO L225 Difference]: With dead ends: 198 [2021-11-19 14:18:00,143 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 14:18:00,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:18:00,145 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 61 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:00,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 609 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:18:00,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 14:18:00,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 14:18:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 78 states have internal predecessors, (93), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-19 14:18:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2021-11-19 14:18:00,168 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 154 transitions. Word has length 118 [2021-11-19 14:18:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:00,170 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 154 transitions. [2021-11-19 14:18:00,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:18:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 154 transitions. [2021-11-19 14:18:00,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-19 14:18:00,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:00,173 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:18:00,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:00,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:00,392 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:18:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:00,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1485450464, now seen corresponding path program 1 times [2021-11-19 14:18:00,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:00,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260610785] [2021-11-19 14:18:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:00,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:00,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:00,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:00,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:18:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:01,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-19 14:18:01,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 90 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-19 14:18:06,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:24,106 WARN L227 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:18:24,114 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-19 14:18:24,115 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 771 [2021-11-19 14:29:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-19 14:29:21,902 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:21,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260610785] [2021-11-19 14:29:21,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260610785] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:29:21,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [351164017] [2021-11-19 14:29:21,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:21,903 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:29:21,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:29:21,907 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:29:21,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-19 14:29:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:27,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:29:27,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:28,113 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-11-19 14:29:28,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:28,595 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-11-19 14:29:28,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [351164017] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:29:28,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:29:28,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17, 15, 8] total 32 [2021-11-19 14:29:28,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846899491] [2021-11-19 14:29:28,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:28,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:29:28,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:28,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:29:28,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=902, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:29:28,598 INFO L87 Difference]: Start difference. First operand 118 states and 154 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-19 14:29:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:28,931 INFO L93 Difference]: Finished difference Result 130 states and 169 transitions. [2021-11-19 14:29:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:29:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2021-11-19 14:29:28,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:28,934 INFO L225 Difference]: With dead ends: 130 [2021-11-19 14:29:28,934 INFO L226 Difference]: Without dead ends: 128 [2021-11-19 14:29:28,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 443 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:29:28,936 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 17 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:28,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 1024 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:29:28,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-19 14:29:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2021-11-19 14:29:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 85 states have internal predecessors, (99), 32 states have call successors, (32), 10 states have call predecessors, (32), 11 states have return successors, (35), 31 states have call predecessors, (35), 31 states have call successors, (35) [2021-11-19 14:29:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 166 transitions. [2021-11-19 14:29:28,951 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 166 transitions. Word has length 122 [2021-11-19 14:29:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:28,952 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 166 transitions. [2021-11-19 14:29:28,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-19 14:29:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 166 transitions. [2021-11-19 14:29:28,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:29:28,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:28,955 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:28,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:29,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:29,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:29:29,375 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:29:29,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:29,375 INFO L85 PathProgramCache]: Analyzing trace with hash 52780584, now seen corresponding path program 1 times [2021-11-19 14:29:29,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:29,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175568466] [2021-11-19 14:29:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:29,379 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:29,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:29,380 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:29,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7c662a5-6c7f-4fa1-914e-9e7ab66125b5/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:29:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:30,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1539 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:29:30,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 90 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-19 14:29:33,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:47,516 WARN L227 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:29:47,518 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-19 14:29:47,518 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 771