./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF --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 b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:01:09,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:01:09,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:01:09,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:01:09,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:01:09,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:01:09,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:01:09,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:01:09,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:01:09,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:01:09,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:01:09,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:01:09,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:01:09,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:01:09,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:01:09,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:01:09,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:01:09,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:01:09,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:01:09,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:01:09,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:01:09,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:01:09,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:01:09,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:01:09,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:01:09,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:01:09,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:01:09,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:01:09,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:01:09,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:01:09,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:01:09,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:01:09,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:01:09,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:01:09,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:01:09,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:01:09,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:01:09,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:01:09,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:01:09,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:01:09,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:01:09,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:01:09,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:01:09,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:01:09,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:01:09,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:01:09,796 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:01:09,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:01:09,797 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:01:09,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:01:09,797 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:01:09,797 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:01:09,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:01:09,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:01:09,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:01:09,799 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:01:09,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:01:09,800 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:01:09,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:01:09,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:01:09,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:01:09,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:01:09,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:01:09,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:01:09,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:01:09,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:01:09,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:01:09,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:01:09,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:01:09,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:01:09,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:01:09,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:01:09,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:01:09,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:01:09,807 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:01:09,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:01:09,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:01:09,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:01:09,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:01:09,808 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_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-11-12 23:01:10,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:01:10,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:01:10,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:01:10,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:01:10,166 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:01:10,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-12 23:01:10,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/0d34ec08d/39d6493fd2cc4ee1967ac93cf7407610/FLAG7c0d5b085 [2021-11-12 23:01:11,037 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:01:11,038 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-12 23:01:11,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/0d34ec08d/39d6493fd2cc4ee1967ac93cf7407610/FLAG7c0d5b085 [2021-11-12 23:01:11,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/0d34ec08d/39d6493fd2cc4ee1967ac93cf7407610 [2021-11-12 23:01:11,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:01:11,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:01:11,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:01:11,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:01:11,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:01:11,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:01:11" (1/1) ... [2021-11-12 23:01:11,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c0f5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:11, skipping insertion in model container [2021-11-12 23:01:11,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:01:11" (1/1) ... [2021-11-12 23:01:11,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:01:11,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:01:12,087 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-12 23:01:12,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-12 23:01:12,123 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:01:12,129 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:01:13,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,170 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:01:13,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:01:13,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:01:13,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:01:13,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:01:13,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:01:13,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:01:13,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:01:13,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:01:13,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:01:13,800 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:01:13,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:13,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:01:13,989 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) [2021-11-12 23:01:13,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e59f66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:13, skipping insertion in model container [2021-11-12 23:01:13,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:01:13,990 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:01:13,992 INFO L158 Benchmark]: Toolchain (without parser) took 2420.47ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 73.0MB in the beginning and 100.8MB in the end (delta: -27.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2021-11-12 23:01:13,993 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 35.8MB in the beginning and 35.7MB in the end (delta: 37.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:01:13,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2417.14ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 72.8MB in the beginning and 101.6MB in the end (delta: -28.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2021-11-12 23:01:13,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 35.8MB in the beginning and 35.7MB in the end (delta: 37.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2417.14ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 72.8MB in the beginning and 101.6MB in the end (delta: -28.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6991]: 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_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF --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 b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:01:16,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:01:16,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:01:16,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:01:16,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:01:16,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:01:16,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:01:16,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:01:16,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:01:16,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:01:16,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:01:16,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:01:16,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:01:16,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:01:16,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:01:16,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:01:16,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:01:16,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:01:16,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:01:16,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:01:16,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:01:16,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:01:16,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:01:16,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:01:16,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:01:16,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:01:16,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:01:16,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:01:16,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:01:16,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:01:16,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:01:16,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:01:16,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:01:16,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:01:16,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:01:16,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:01:16,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:01:16,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:01:16,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:01:16,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:01:16,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:01:16,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:01:16,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:01:16,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:01:16,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:01:16,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:01:16,395 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:01:16,395 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:01:16,395 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:01:16,395 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:01:16,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:01:16,396 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:01:16,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:01:16,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:01:16,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:01:16,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:01:16,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:01:16,400 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:01:16,400 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:01:16,400 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:01:16,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:01:16,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:01:16,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:01:16,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:01:16,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:01:16,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:01:16,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:01:16,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:01:16,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:01:16,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:01:16,403 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:01:16,403 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:01:16,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:01:16,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:01:16,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:01:16,404 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_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-11-12 23:01:16,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:01:16,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:01:16,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:01:16,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:01:16,818 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:01:16,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-12 23:01:16,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/1535cb74d/506ceca40f33480489630905eb6f0d17/FLAG359e8f78a [2021-11-12 23:01:17,806 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:01:17,807 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-12 23:01:17,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/1535cb74d/506ceca40f33480489630905eb6f0d17/FLAG359e8f78a [2021-11-12 23:01:18,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/data/1535cb74d/506ceca40f33480489630905eb6f0d17 [2021-11-12 23:01:18,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:01:18,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:01:18,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:01:18,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:01:18,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:01:18,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:01:18" (1/1) ... [2021-11-12 23:01:18,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c53569a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:18, skipping insertion in model container [2021-11-12 23:01:18,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:01:18" (1/1) ... [2021-11-12 23:01:18,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:01:18,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:01:18,765 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-12 23:01:18,772 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-12 23:01:18,798 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:01:18,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:01:19,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:19,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:20,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:01:20,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:01:20,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:01:20,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:01:20,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:01:20,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:01:20,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:01:20,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:01:20,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:01:20,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:01:20,483 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:01:20,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:20,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:20,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:01:20,804 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:01:20,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:01:20,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-12 23:01:20,913 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-12 23:01:20,915 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:01:20,920 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:01:21,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,036 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:01:21,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:01:21,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:01:21,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:01:21,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:01:21,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:01:21,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:01:21,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:01:21,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:01:21,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:01:21,167 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:01:21,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:01:21,394 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:01:21,419 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-12 23:01:21,428 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-12 23:01:21,430 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:01:21,431 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:01:21,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:01:21,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:01:21,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:01:21,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:01:21,534 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:01:21,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:01:21,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:01:21,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:01:21,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:01:21,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:01:21,589 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:01:21,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:01:21,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:01:22,090 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:01:22,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22 WrapperNode [2021-11-12 23:01:22,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:01:22,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:01:22,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:01:22,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:01:22,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:01:22,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:01:22,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:01:22,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:01:22,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:01:22,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:01:22,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:01:22,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:01:22,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (1/1) ... [2021-11-12 23:01:22,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:01:22,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:01:22,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:01:22,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:01:22,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2021-11-12 23:01:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2021-11-12 23:01:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-12 23:01:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-12 23:01:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-11-12 23:01:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-11-12 23:01:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:01:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:01:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:01:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:01:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:01:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:01:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:01:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:01:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:01:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:01:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:01:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:01:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:01:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:01:22,635 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:01:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:01:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:01:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:01:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:01:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 23:01:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 23:01:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 23:01:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 23:01:24,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:01:24,003 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:01:24,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:01:24 BoogieIcfgContainer [2021-11-12 23:01:24,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:01:24,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:01:24,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:01:24,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:01:24,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:01:18" (1/3) ... [2021-11-12 23:01:24,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c685b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:01:24, skipping insertion in model container [2021-11-12 23:01:24,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:01:22" (2/3) ... [2021-11-12 23:01:24,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c685b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:01:24, skipping insertion in model container [2021-11-12 23:01:24,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:01:24" (3/3) ... [2021-11-12 23:01:24,016 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2021-11-12 23:01:24,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:01:24,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:01:24,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:01:24,092 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 [2021-11-12 23:01:24,093 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:01:24,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-12 23:01:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-12 23:01:24,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:24,127 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-12 23:01:24,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:24,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1676862830, now seen corresponding path program 1 times [2021-11-12 23:01:24,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:24,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125170445] [2021-11-12 23:01:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:24,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:24,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:24,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:24,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:01:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:24,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:01:24,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:01:24,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:01:24,852 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:24,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125170445] [2021-11-12 23:01:24,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125170445] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:24,853 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:24,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:01:24,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196684469] [2021-11-12 23:01:24,857 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:24,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:01:24,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:24,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:01:24,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:01:24,917 INFO L87 Difference]: Start difference. First operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 23:01:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:24,985 INFO L93 Difference]: Finished difference Result 205 states and 281 transitions. [2021-11-12 23:01:24,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:01:24,991 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2021-11-12 23:01:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:25,011 INFO L225 Difference]: With dead ends: 205 [2021-11-12 23:01:25,011 INFO L226 Difference]: Without dead ends: 101 [2021-11-12 23:01:25,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:01:25,025 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:25,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 2.38ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:01:25,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-12 23:01:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-11-12 23:01:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:01:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2021-11-12 23:01:25,122 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 36 [2021-11-12 23:01:25,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:25,124 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2021-11-12 23:01:25,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 23:01:25,125 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2021-11-12 23:01:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-12 23:01:25,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:25,129 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-12 23:01:25,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:25,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:25,337 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:25,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash -12080912, now seen corresponding path program 1 times [2021-11-12 23:01:25,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:25,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063398130] [2021-11-12 23:01:25,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:25,340 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:25,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:25,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:25,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:01:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:25,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:01:25,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:25,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:01:25,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:01:25,945 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:25,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063398130] [2021-11-12 23:01:25,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063398130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:25,946 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:25,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:01:25,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546177612] [2021-11-12 23:01:25,946 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:25,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:25,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:25,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:25,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:25,952 INFO L87 Difference]: Start difference. First operand 101 states and 128 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-12 23:01:26,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:26,042 INFO L93 Difference]: Finished difference Result 148 states and 186 transitions. [2021-11-12 23:01:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 36 [2021-11-12 23:01:26,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:26,048 INFO L225 Difference]: With dead ends: 148 [2021-11-12 23:01:26,049 INFO L226 Difference]: Without dead ends: 101 [2021-11-12 23:01:26,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:26,054 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 6 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:26,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 380 Invalid, 9 Unknown, 0 Unchecked, 10.18ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 39.72ms Time] [2021-11-12 23:01:26,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-12 23:01:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-11-12 23:01:26,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 66 states have internal predecessors, (76), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:01:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2021-11-12 23:01:26,083 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 36 [2021-11-12 23:01:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:26,084 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2021-11-12 23:01:26,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-12 23:01:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2021-11-12 23:01:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-12 23:01:26,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:26,097 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 23:01:26,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:26,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:26,321 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:26,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:26,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2108660913, now seen corresponding path program 1 times [2021-11-12 23:01:26,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:26,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781435529] [2021-11-12 23:01:26,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:26,324 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:26,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:26,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:26,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:01:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:26,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:01:26,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 23:01:26,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 23:01:27,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:27,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781435529] [2021-11-12 23:01:27,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781435529] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:27,089 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:27,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-12 23:01:27,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240457021] [2021-11-12 23:01:27,090 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:27,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:01:27,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:27,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:01:27,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:01:27,101 INFO L87 Difference]: Start difference. First operand 101 states and 127 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-12 23:01:27,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:27,360 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2021-11-12 23:01:27,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:01:27,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 64 [2021-11-12 23:01:27,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:27,368 INFO L225 Difference]: With dead ends: 138 [2021-11-12 23:01:27,369 INFO L226 Difference]: Without dead ends: 101 [2021-11-12 23:01:27,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:01:27,374 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 52 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.78ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 157.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:27,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 753 Invalid, 66 Unknown, 0 Unchecked, 8.78ms Time], IncrementalHoareTripleChecker [31 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 157.30ms Time] [2021-11-12 23:01:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-12 23:01:27,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-11-12 23:01:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 66 states have internal predecessors, (75), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:01:27,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2021-11-12 23:01:27,399 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 64 [2021-11-12 23:01:27,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:27,401 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2021-11-12 23:01:27,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-12 23:01:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2021-11-12 23:01:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 23:01:27,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:27,405 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 23:01:27,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:27,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:27,619 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:27,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash -63104247, now seen corresponding path program 1 times [2021-11-12 23:01:27,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:27,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975105391] [2021-11-12 23:01:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:27,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:27,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:27,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:27,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:01:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:27,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:01:27,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:28,102 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 23:01:28,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 23:01:28,295 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:28,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975105391] [2021-11-12 23:01:28,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975105391] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:28,296 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:28,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:01:28,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49907297] [2021-11-12 23:01:28,296 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:28,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:28,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:28,298 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:01:28,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:28,332 INFO L93 Difference]: Finished difference Result 138 states and 168 transitions. [2021-11-12 23:01:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:28,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 65 [2021-11-12 23:01:28,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:28,335 INFO L225 Difference]: With dead ends: 138 [2021-11-12 23:01:28,335 INFO L226 Difference]: Without dead ends: 101 [2021-11-12 23:01:28,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:01:28,337 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 1 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:28,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 370 Invalid, 7 Unknown, 0 Unchecked, 2.33ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 13.39ms Time] [2021-11-12 23:01:28,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-12 23:01:28,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-11-12 23:01:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 66 states have internal predecessors, (74), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:01:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2021-11-12 23:01:28,352 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 65 [2021-11-12 23:01:28,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:28,353 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2021-11-12 23:01:28,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:01:28,353 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2021-11-12 23:01:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-12 23:01:28,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:28,355 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-12 23:01:28,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:28,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:28,576 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:28,576 INFO L85 PathProgramCache]: Analyzing trace with hash -33040941, now seen corresponding path program 1 times [2021-11-12 23:01:28,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:28,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752179911] [2021-11-12 23:01:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:28,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:28,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:28,579 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:28,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:01:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:28,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:01:28,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:29,205 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 23:01:29,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-12 23:01:29,469 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:29,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752179911] [2021-11-12 23:01:29,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752179911] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:29,469 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:29,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 23:01:29,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090819574] [2021-11-12 23:01:29,470 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:29,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:01:29,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:29,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:01:29,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:01:29,492 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:01:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:29,587 INFO L93 Difference]: Finished difference Result 170 states and 212 transitions. [2021-11-12 23:01:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:01:29,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 83 [2021-11-12 23:01:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:29,591 INFO L225 Difference]: With dead ends: 170 [2021-11-12 23:01:29,591 INFO L226 Difference]: Without dead ends: 101 [2021-11-12 23:01:29,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:01:29,593 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 8 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.90ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.90ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:29,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 500 Invalid, 21 Unknown, 0 Unchecked, 2.90ms Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 64.90ms Time] [2021-11-12 23:01:29,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-12 23:01:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-11-12 23:01:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.123076923076923) internal successors, (73), 66 states have internal predecessors, (73), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 23:01:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2021-11-12 23:01:29,604 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 83 [2021-11-12 23:01:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:29,605 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2021-11-12 23:01:29,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:01:29,605 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2021-11-12 23:01:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 23:01:29,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:29,607 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 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] [2021-11-12 23:01:29,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:29,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:29,821 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:01:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash -151358824, now seen corresponding path program 1 times [2021-11-12 23:01:29,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:29,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504517258] [2021-11-12 23:01:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:29,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:29,824 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:29,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:01:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:30,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:01:30,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-12 23:01:30,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-11-12 23:01:32,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:32,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504517258] [2021-11-12 23:01:32,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504517258] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:01:32,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:01:32,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 16 [2021-11-12 23:01:32,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602454277] [2021-11-12 23:01:32,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:32,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:01:32,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:32,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:01:32,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:01:32,840 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 10 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-12 23:01:33,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:33,265 INFO L93 Difference]: Finished difference Result 116 states and 136 transitions. [2021-11-12 23:01:33,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:01:33,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 117 [2021-11-12 23:01:33,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:33,266 INFO L225 Difference]: With dead ends: 116 [2021-11-12 23:01:33,266 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:01:33,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:01:33,268 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 11 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 117.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:33,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 259 Invalid, 68 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 15 Unchecked, 117.64ms Time] [2021-11-12 23:01:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:01:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:01:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:01:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:01:33,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2021-11-12 23:01:33,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:33,270 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:01:33,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-12 23:01:33,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:01:33,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:01:33,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:01:33,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:33,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:33,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:01:33,848 INFO L854 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: (exists ((|ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (_ BitVec 64))) (and (bvult |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) (bvule (bvadd (_ bv9223372036853541257 64) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (_ bv36028797018963967 64)))) [2021-11-12 23:01:33,849 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2021-11-12 23:01:33,849 INFO L858 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2021-11-12 23:01:33,849 INFO L854 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (exists ((|ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (_ BitVec 64))) (and (bvult |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) (bvule (bvadd (_ bv9223372036853541257 64) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (_ bv36028797018963967 64)))) (bvult |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) (bvult |ensure_string_is_allocated_bounded_length_~len~1#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|)) [2021-11-12 23:01:33,849 INFO L858 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2021-11-12 23:01:33,849 INFO L858 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2021-11-12 23:01:33,849 INFO L854 garLoopResultBuilder]: At program point L6808(line 6808) the Hoare annotation is: (and (bvult |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) (bvult |ensure_string_is_allocated_bounded_length_~len~1#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|)) [2021-11-12 23:01:33,849 INFO L858 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2021-11-12 23:01:33,850 INFO L854 garLoopResultBuilder]: At program point L6811-2(line 6811) the Hoare annotation is: (exists ((|ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (_ BitVec 64))) (and (bvult |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) (bvule (bvadd (_ bv9223372036853541257 64) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (_ bv36028797018963967 64)))) [2021-11-12 23:01:33,850 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_~max_size#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) [2021-11-12 23:01:33,850 INFO L858 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2021-11-12 23:01:33,850 INFO L854 garLoopResultBuilder]: At program point L6803(line 6803) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_~max_size#1| |ensure_string_is_allocated_bounded_length_#in~max_size#1|) [2021-11-12 23:01:33,850 INFO L861 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6801 6805) the Hoare annotation is: true [2021-11-12 23:01:33,850 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-11-12 23:01:33,850 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6801 6805) no Hoare annotation was computed. [2021-11-12 23:01:33,850 INFO L861 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6883 6888) the Hoare annotation is: true [2021-11-12 23:01:33,851 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6883 6888) no Hoare annotation was computed. [2021-11-12 23:01:33,851 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2021-11-12 23:01:33,851 INFO L858 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2021-11-12 23:01:33,851 INFO L854 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (= bounded_malloc_~size |bounded_malloc_#in~size|) [2021-11-12 23:01:33,851 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-11-12 23:01:33,851 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-11-12 23:01:33,851 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-11-12 23:01:33,851 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-12 23:01:33,851 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-12 23:01:33,852 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-12 23:01:33,852 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-12 23:01:33,852 INFO L858 garLoopResultBuilder]: For program point L8097(lines 8097 8101) no Hoare annotation was computed. [2021-11-12 23:01:33,852 INFO L858 garLoopResultBuilder]: For program point L8095-4(lines 8095 8108) no Hoare annotation was computed. [2021-11-12 23:01:33,852 INFO L861 garLoopResultBuilder]: At program point L8095-3(lines 8095 8108) the Hoare annotation is: true [2021-11-12 23:01:33,852 INFO L858 garLoopResultBuilder]: For program point L8095-2(lines 8095 8108) no Hoare annotation was computed. [2021-11-12 23:01:33,852 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strFINAL(lines 8078 8111) no Hoare annotation was computed. [2021-11-12 23:01:33,853 INFO L858 garLoopResultBuilder]: For program point L8083(lines 8083 8085) no Hoare annotation was computed. [2021-11-12 23:01:33,853 INFO L861 garLoopResultBuilder]: At program point L8080-1(line 8080) the Hoare annotation is: true [2021-11-12 23:01:33,853 INFO L861 garLoopResultBuilder]: At program point L8080(line 8080) the Hoare annotation is: true [2021-11-12 23:01:33,853 INFO L861 garLoopResultBuilder]: At program point aws_array_eq_c_strENTRY(lines 8078 8111) the Hoare annotation is: true [2021-11-12 23:01:33,853 INFO L858 garLoopResultBuilder]: For program point L8103(lines 8103 8107) no Hoare annotation was computed. [2021-11-12 23:01:33,854 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strEXIT(lines 8078 8111) no Hoare annotation was computed. [2021-11-12 23:01:33,854 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6890 6892) no Hoare annotation was computed. [2021-11-12 23:01:33,854 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2021-11-12 23:01:33,854 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6890 6892) the Hoare annotation is: true [2021-11-12 23:01:33,854 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2021-11-12 23:01:33,855 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-11-12 23:01:33,855 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-11-12 23:01:33,855 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-11-12 23:01:33,855 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2021-11-12 23:01:33,855 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-11-12 23:01:33,855 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2021-11-12 23:01:33,856 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-12 23:01:33,856 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-12 23:01:33,856 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-12 23:01:33,856 INFO L861 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-11-12 23:01:33,856 INFO L858 garLoopResultBuilder]: For program point L7579(line 7579) no Hoare annotation was computed. [2021-11-12 23:01:33,857 INFO L858 garLoopResultBuilder]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2021-11-12 23:01:33,857 INFO L858 garLoopResultBuilder]: For program point L7579-5(line 7579) no Hoare annotation was computed. [2021-11-12 23:01:33,857 INFO L854 garLoopResultBuilder]: At program point L7579-4(line 7579) the Hoare annotation is: (or (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_~str#1.offset|) (not (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base|)) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base|)) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base|)) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_~str#1.base|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|))) [2021-11-12 23:01:33,857 INFO L858 garLoopResultBuilder]: For program point L7579-3(line 7579) no Hoare annotation was computed. [2021-11-12 23:01:33,857 INFO L854 garLoopResultBuilder]: At program point L7579-2(line 7579) the Hoare annotation is: (or (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_~str#1.offset|) (not (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base|)) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base|)) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base|)) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_~str#1.base|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|))) [2021-11-12 23:01:33,858 INFO L854 garLoopResultBuilder]: At program point L8921(line 8921) the Hoare annotation is: false [2021-11-12 23:01:33,858 INFO L858 garLoopResultBuilder]: For program point L8921-1(line 8921) no Hoare annotation was computed. [2021-11-12 23:01:33,858 INFO L858 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2021-11-12 23:01:33,858 INFO L854 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) [2021-11-12 23:01:33,858 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:01:33,859 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:01:33,859 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:01:33,859 INFO L858 garLoopResultBuilder]: For program point L7580(lines 7580 7588) no Hoare annotation was computed. [2021-11-12 23:01:33,859 INFO L858 garLoopResultBuilder]: For program point L7101-1(lines 7100 7113) no Hoare annotation was computed. [2021-11-12 23:01:33,859 INFO L854 garLoopResultBuilder]: At program point L7101(line 7101) the Hoare annotation is: false [2021-11-12 23:01:33,859 INFO L858 garLoopResultBuilder]: For program point L8918(lines 8918 8923) no Hoare annotation was computed. [2021-11-12 23:01:33,859 INFO L854 garLoopResultBuilder]: At program point L6821-1(line 6821) the Hoare annotation is: (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) [2021-11-12 23:01:33,859 INFO L854 garLoopResultBuilder]: At program point L6821(line 6821) the Hoare annotation is: (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) [2021-11-12 23:01:33,860 INFO L858 garLoopResultBuilder]: For program point L7589(lines 7589 7597) no Hoare annotation was computed. [2021-11-12 23:01:33,860 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:01:33,860 INFO L854 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2021-11-12 23:01:33,860 INFO L858 garLoopResultBuilder]: For program point L8919-2(line 8919) no Hoare annotation was computed. [2021-11-12 23:01:33,860 INFO L854 garLoopResultBuilder]: At program point L8915(line 8915) the Hoare annotation is: (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) [2021-11-12 23:01:33,860 INFO L858 garLoopResultBuilder]: For program point L8915-1(lines 8915 8916) no Hoare annotation was computed. [2021-11-12 23:01:33,860 INFO L854 garLoopResultBuilder]: At program point L8919(line 8919) the Hoare annotation is: false [2021-11-12 23:01:33,860 INFO L854 garLoopResultBuilder]: At program point L8919-1(line 8919) the Hoare annotation is: false [2021-11-12 23:01:33,860 INFO L854 garLoopResultBuilder]: At program point L7598(line 7598) the Hoare annotation is: (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|)) [2021-11-12 23:01:33,860 INFO L854 garLoopResultBuilder]: At program point L6826(line 6826) the Hoare annotation is: (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base|)) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) [2021-11-12 23:01:33,861 INFO L858 garLoopResultBuilder]: For program point L8915-3(lines 8915 8916) no Hoare annotation was computed. [2021-11-12 23:01:33,861 INFO L854 garLoopResultBuilder]: At program point L7598-2(lines 7577 7599) the Hoare annotation is: (or (and (not (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base|)) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base|)) (= |ULTIMATE.start_aws_string_eq_c_str_#res#1| (_ bv0 8)) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base|))) (and (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|))) [2021-11-12 23:01:33,861 INFO L858 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-11-12 23:01:33,861 INFO L858 garLoopResultBuilder]: For program point L7598-1(line 7598) no Hoare annotation was computed. [2021-11-12 23:01:33,861 INFO L858 garLoopResultBuilder]: For program point L6822(line 6822) no Hoare annotation was computed. [2021-11-12 23:01:33,861 INFO L858 garLoopResultBuilder]: For program point L7111-1(line 7111) no Hoare annotation was computed. [2021-11-12 23:01:33,861 INFO L854 garLoopResultBuilder]: At program point L7111(line 7111) the Hoare annotation is: false [2021-11-12 23:01:33,861 INFO L858 garLoopResultBuilder]: For program point L6826-1(line 6826) no Hoare annotation was computed. [2021-11-12 23:01:33,862 INFO L858 garLoopResultBuilder]: For program point L7107-1(line 7107) no Hoare annotation was computed. [2021-11-12 23:01:33,862 INFO L854 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: false [2021-11-12 23:01:33,862 INFO L854 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2021-11-12 23:01:33,862 INFO L858 garLoopResultBuilder]: For program point L8920-1(line 8920) no Hoare annotation was computed. [2021-11-12 23:01:33,862 INFO L858 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2021-11-12 23:01:33,863 INFO L858 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2021-11-12 23:01:33,863 INFO L861 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2021-11-12 23:01:33,863 INFO L854 garLoopResultBuilder]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base|)) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|) (not (= (_ bv0 64) |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base|)) (= (_ bv0 64) |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|)) [2021-11-12 23:01:33,863 INFO L858 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2021-11-12 23:01:33,863 INFO L861 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2021-11-12 23:01:33,863 INFO L858 garLoopResultBuilder]: For program point L7108-1(lines 7108 7110) no Hoare annotation was computed. [2021-11-12 23:01:33,863 INFO L854 garLoopResultBuilder]: At program point L7108(lines 7108 7110) the Hoare annotation is: false [2021-11-12 23:01:33,864 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-12 23:01:33,864 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-12 23:01:33,864 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-12 23:01:33,864 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-12 23:01:33,864 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-12 23:01:33,864 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-12 23:01:33,867 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-12 23:01:33,868 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:01:33,880 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] [2021-11-12 23:01:33,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] [2021-11-12 23:01:33,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] [2021-11-12 23:01:33,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] [2021-11-12 23:01:33,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:01:33 BoogieIcfgContainer [2021-11-12 23:01:33,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:01:33,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:01:33,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:01:33,887 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:01:33,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:01:24" (3/4) ... [2021-11-12 23:01:33,891 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:01:33,897 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-11-12 23:01:33,898 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-12 23:01:33,898 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-12 23:01:33,898 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-11-12 23:01:33,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-12 23:01:33,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-12 23:01:33,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str [2021-11-12 23:01:33,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-11-12 23:01:33,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-11-12 23:01:33,912 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2021-11-12 23:01:33,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-12 23:01:33,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 23:01:33,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:01:33,952 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0bv64 == \result) && 0bv64 == str) && !(0bv64 == str)) && 0bv64 == str [2021-11-12 23:01:33,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0bv64 == c_str) && !(0bv64 == \result)) && \result == 0bv8) && !(0bv64 == str)) || (0bv64 == c_str && 0bv64 == c_str) [2021-11-12 23:01:33,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1 : bv64 :: ~bvult64(ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1, \old(max_size)) && ~bvule64(~bvadd16(9223372036853541257bv64, ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1), 36028797018963967bv64)) [2021-11-12 23:01:34,193 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:01:34,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:01:34,194 INFO L158 Benchmark]: Toolchain (without parser) took 15852.03ms. Allocated memory was 71.3MB in the beginning and 222.3MB in the end (delta: 151.0MB). Free memory was 47.2MB in the beginning and 55.6MB in the end (delta: -8.4MB). Peak memory consumption was 140.0MB. Max. memory is 16.1GB. [2021-11-12 23:01:34,194 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:01:34,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3748.10ms. Allocated memory was 71.3MB in the beginning and 136.3MB in the end (delta: 65.0MB). Free memory was 47.1MB in the beginning and 63.5MB in the end (delta: -16.4MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2021-11-12 23:01:34,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 265.56ms. Allocated memory is still 136.3MB. Free memory was 63.5MB in the beginning and 54.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:01:34,195 INFO L158 Benchmark]: Boogie Preprocessor took 162.43ms. Allocated memory is still 136.3MB. Free memory was 54.4MB in the beginning and 80.5MB in the end (delta: -26.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:01:34,196 INFO L158 Benchmark]: RCFGBuilder took 1483.33ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 80.5MB in the beginning and 103.8MB in the end (delta: -23.3MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2021-11-12 23:01:34,196 INFO L158 Benchmark]: TraceAbstraction took 9877.93ms. Allocated memory was 174.1MB in the beginning and 222.3MB in the end (delta: 48.2MB). Free memory was 103.8MB in the beginning and 129.0MB in the end (delta: -25.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-11-12 23:01:34,196 INFO L158 Benchmark]: Witness Printer took 306.70ms. Allocated memory is still 222.3MB. Free memory was 129.0MB in the beginning and 55.6MB in the end (delta: 73.4MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2021-11-12 23:01:34,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3748.10ms. Allocated memory was 71.3MB in the beginning and 136.3MB in the end (delta: 65.0MB). Free memory was 47.1MB in the beginning and 63.5MB in the end (delta: -16.4MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 265.56ms. Allocated memory is still 136.3MB. Free memory was 63.5MB in the beginning and 54.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 162.43ms. Allocated memory is still 136.3MB. Free memory was 54.4MB in the beginning and 80.5MB in the end (delta: -26.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1483.33ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 80.5MB in the beginning and 103.8MB in the end (delta: -23.3MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9877.93ms. Allocated memory was 174.1MB in the beginning and 222.3MB in the end (delta: 48.2MB). Free memory was 103.8MB in the beginning and 129.0MB in the end (delta: -25.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 306.70ms. Allocated memory is still 222.3MB. Free memory was 129.0MB in the beginning and 55.6MB in the end (delta: 73.4MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 6, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 392.95ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 2398 SdHoareTripleChecker+Invalid, 323.64ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 15 IncrementalHoareTripleChecker+Unchecked, 1725 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 673 mSDtfsCounter, 119 mSolverCounterSat, 28.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 800 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 139 PreInvPairs, 159 NumberOfFragments, 234 HoareAnnotationTreeSize, 139 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 41 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 790 ConstructedInterpolants, 10 QuantifiedInterpolants, 1377 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2594 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 464/504 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8095]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7577]: Loop Invariant Derived loop invariant: (((!(0bv64 == c_str) && !(0bv64 == \result)) && \result == 0bv8) && !(0bv64 == str)) || (0bv64 == c_str && 0bv64 == c_str) - InvariantResult [Line: 6807]: Loop Invariant [2021-11-12 23:01:34,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] [2021-11-12 23:01:34,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] [2021-11-12 23:01:34,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] [2021-11-12 23:01:34,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1,QUANTIFIED] Derived loop invariant: (\exists ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1 : bv64 :: ~bvult64(ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1, \old(max_size)) && ~bvule64(~bvadd16(9223372036853541257bv64, ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1), 36028797018963967bv64)) - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: ((!(0bv64 == \result) && 0bv64 == str) && !(0bv64 == str)) && 0bv64 == str RESULT: Ultimate proved your program to be correct! [2021-11-12 23:01:34,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c491863-94da-49b3-916d-059bcb48a1ba/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE