./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:00:53,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:00:53,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:00:53,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:00:53,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:00:53,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:00:53,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:00:53,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:00:53,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:00:53,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:00:53,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:00:53,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:00:53,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:00:53,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:00:53,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:00:53,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:00:53,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:00:53,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:00:53,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:00:53,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:00:53,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:00:53,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:00:53,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:00:53,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:00:53,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:00:53,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:00:53,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:00:53,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:00:53,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:00:53,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:00:53,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:00:53,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:00:53,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:00:53,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:00:53,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:00:53,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:00:53,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:00:53,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:00:53,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:00:53,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:00:53,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:00:53,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:00:53,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:00:53,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:00:53,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:00:53,202 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:00:53,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:00:53,202 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:00:53,203 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:00:53,203 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:00:53,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:00:53,204 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:00:53,204 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:00:53,204 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:00:53,205 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:00:53,205 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:00:53,205 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:00:53,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:00:53,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:00:53,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:00:53,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:00:53,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:00:53,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:00:53,208 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:00:53,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:00:53,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:00:53,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:00:53,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:00:53,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:00:53,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:00:53,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:00:53,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:00:53,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:00:53,211 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:00:53,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:00:53,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:00:53,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:00:53,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:00:53,213 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2021-11-07 01:00:53,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:00:53,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:00:53,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:00:53,563 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:00:53,564 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:00:53,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2021-11-07 01:00:53,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/9733b05b6/042a16137d704434b83ec8c2251cbea1/FLAG7b0a2b02c [2021-11-07 01:00:54,602 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:00:54,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2021-11-07 01:00:54,670 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/9733b05b6/042a16137d704434b83ec8c2251cbea1/FLAG7b0a2b02c [2021-11-07 01:00:55,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/9733b05b6/042a16137d704434b83ec8c2251cbea1 [2021-11-07 01:00:55,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:00:55,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:00:55,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:00:55,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:00:55,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:00:55,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:55" (1/1) ... [2021-11-07 01:00:55,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6615a138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:55, skipping insertion in model container [2021-11-07 01:00:55,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:55" (1/1) ... [2021-11-07 01:00:55,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:00:55,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:00:55,641 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2021-11-07 01:00:55,652 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2021-11-07 01:00:55,680 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:00:55,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:00:56,942 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,979 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:56,982 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:57,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:00:57,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:00:57,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:00:57,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:00:57,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:00:57,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:00:57,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:00:57,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:00:57,534 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:00:57,538 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:00:57,779 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:00:57,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:58,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:00:58,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:00:58,198 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:00:58,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@301eb76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:58, skipping insertion in model container [2021-11-07 01:00:58,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:00:58,200 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:00:58,202 INFO L168 Benchmark]: Toolchain (without parser) took 3130.32 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 68.4 MB in the beginning and 100.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:58,203 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 107.0 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:00:58,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3127.13 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 68.4 MB in the beginning and 100.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:58,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 107.0 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3127.13 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 68.4 MB in the beginning and 100.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:01:00,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:01:00,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:01:00,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:01:00,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:01:00,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:01:00,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:01:00,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:01:00,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:01:00,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:01:00,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:01:00,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:01:00,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:01:00,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:01:00,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:01:00,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:01:00,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:01:00,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:01:00,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:01:00,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:01:00,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:01:00,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:01:00,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:01:00,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:01:00,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:01:00,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:01:00,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:01:00,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:01:00,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:01:00,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:01:00,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:01:00,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:01:00,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:01:00,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:01:00,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:01:00,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:01:00,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:01:00,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:01:00,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:01:00,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:01:00,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:01:00,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:01:00,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:01:00,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:01:00,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:01:00,627 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:01:00,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:01:00,627 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:01:00,630 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:01:00,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:01:00,631 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:01:00,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:01:00,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:01:00,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:01:00,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:01:00,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:01:00,635 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:01:00,635 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:01:00,635 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:01:00,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:01:00,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:01:00,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:01:00,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:01:00,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:01:00,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:01:00,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:01:00,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:01:00,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:01:00,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:01:00,639 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:01:00,639 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:01:00,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:01:00,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:01:00,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:01:00,640 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2021-11-07 01:01:01,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:01:01,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:01:01,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:01:01,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:01:01,091 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:01:01,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2021-11-07 01:01:01,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/00f315565/9eef6cb712b24d7dba683c10c70ef41d/FLAG0fe6db934 [2021-11-07 01:01:02,204 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:01:02,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2021-11-07 01:01:02,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/00f315565/9eef6cb712b24d7dba683c10c70ef41d/FLAG0fe6db934 [2021-11-07 01:01:02,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/data/00f315565/9eef6cb712b24d7dba683c10c70ef41d [2021-11-07 01:01:02,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:01:02,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:01:02,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:01:02,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:01:02,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:01:02,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:01:02" (1/1) ... [2021-11-07 01:01:02,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67cd11a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:02, skipping insertion in model container [2021-11-07 01:01:02,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:01:02" (1/1) ... [2021-11-07 01:01:02,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:01:02,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:01:03,029 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2021-11-07 01:01:03,036 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2021-11-07 01:01:03,063 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:01:03,070 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:01:04,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:01:04,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:01:04,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:01:04,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:01:04,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:01:04,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:01:04,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:01:04,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:01:04,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:01:04,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:01:04,804 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:01:04,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:04,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:01:05,119 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:01:05,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:01:05,201 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2021-11-07 01:01:05,201 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2021-11-07 01:01:05,203 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:01:05,204 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:01:05,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,269 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:01:05,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:01:05,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:01:05,376 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:01:05,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:01:05,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:01:05,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:01:05,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:01:05,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:01:05,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:01:05,412 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:01:05,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:01:05,607 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:01:05,633 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2021-11-07 01:01:05,634 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_8316a779-1471-4aef-bdcf-409ba3a43ef6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2021-11-07 01:01:05,635 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:01:05,636 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:01:05,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:01:05,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:01:05,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:01:05,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:01:05,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:01:05,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:01:05,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:01:05,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:01:05,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:01:05,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:01:05,768 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:01:05,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:01:05,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:01:06,396 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:01:06,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06 WrapperNode [2021-11-07 01:01:06,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:01:06,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:01:06,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:01:06,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:01:06,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:01:06,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:01:06,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:01:06,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:01:06,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:01:06,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:01:06,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:01:06,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:01:06,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (1/1) ... [2021-11-07 01:01:06,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:01:06,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:01:06,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:01:06,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:01:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:01:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:01:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:01:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:01:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-07 01:01:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:01:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:01:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:01:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:01:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:01:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:01:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:01:06,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:01:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:01:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:01:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:01:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:01:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:01:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:01:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:01:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:01:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:01:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-07 01:01:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-07 01:01:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-07 01:01:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:01:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:01:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:01:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:01:26,307 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:01:26,318 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-11-07 01:01:26,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:01:26 BoogieIcfgContainer [2021-11-07 01:01:26,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:01:26,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:01:26,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:01:26,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:01:26,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:01:02" (1/3) ... [2021-11-07 01:01:26,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c532e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:01:26, skipping insertion in model container [2021-11-07 01:01:26,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:01:06" (2/3) ... [2021-11-07 01:01:26,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c532e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:01:26, skipping insertion in model container [2021-11-07 01:01:26,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:01:26" (3/3) ... [2021-11-07 01:01:26,331 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2021-11-07 01:01:26,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:01:26,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 01:01:26,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:01:26,423 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:01:26,424 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 01:01:26,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 199 states have (on average 1.4773869346733668) internal successors, (294), 210 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:01:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 01:01:26,454 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:01:26,455 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:01:26,455 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:01:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:01:26,461 INFO L85 PathProgramCache]: Analyzing trace with hash 702346985, now seen corresponding path program 1 times [2021-11-07 01:01:26,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:01:26,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821290975] [2021-11-07 01:01:26,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:01:26,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:01:26,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:01:26,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:01:26,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:01:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:01:30,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:01:31,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:01:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:01:31,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:01:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:01:31,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:01:31,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821290975] [2021-11-07 01:01:31,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821290975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:01:31,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:01:31,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:01:31,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859219737] [2021-11-07 01:01:31,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:01:31,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:01:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:01:31,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:01:31,437 INFO L87 Difference]: Start difference. First operand has 211 states, 199 states have (on average 1.4773869346733668) internal successors, (294), 210 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:01:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:01:31,477 INFO L93 Difference]: Finished difference Result 419 states and 584 transitions. [2021-11-07 01:01:31,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:01:31,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-07 01:01:31,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:01:31,491 INFO L225 Difference]: With dead ends: 419 [2021-11-07 01:01:31,491 INFO L226 Difference]: Without dead ends: 205 [2021-11-07 01:01:31,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:01:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-07 01:01:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-07 01:01:31,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 194 states have (on average 1.3608247422680413) internal successors, (264), 204 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:01:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 264 transitions. [2021-11-07 01:01:31,548 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 264 transitions. Word has length 47 [2021-11-07 01:01:31,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:01:31,548 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 264 transitions. [2021-11-07 01:01:31,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:01:31,549 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 264 transitions. [2021-11-07 01:01:31,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 01:01:31,551 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:01:31,552 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:01:31,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:01:31,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:01:31,753 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:01:31,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:01:31,754 INFO L85 PathProgramCache]: Analyzing trace with hash -202752783, now seen corresponding path program 1 times [2021-11-07 01:01:31,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:01:31,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751692914] [2021-11-07 01:01:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:01:31,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:01:31,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:01:31,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:01:31,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:01:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:01:36,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:01:36,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:01:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:01:36,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:01:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:01:36,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:01:36,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751692914] [2021-11-07 01:01:36,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751692914] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:01:36,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:01:36,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:01:36,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980613438] [2021-11-07 01:01:36,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:01:36,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:01:36,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:01:36,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:01:36,724 INFO L87 Difference]: Start difference. First operand 205 states and 264 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:01:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:01:37,112 INFO L93 Difference]: Finished difference Result 389 states and 501 transitions. [2021-11-07 01:01:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:01:37,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-07 01:01:37,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:01:37,118 INFO L225 Difference]: With dead ends: 389 [2021-11-07 01:01:37,118 INFO L226 Difference]: Without dead ends: 205 [2021-11-07 01:01:37,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:01:37,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-07 01:01:37,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-07 01:01:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 194 states have (on average 1.3453608247422681) internal successors, (261), 204 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:01:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 261 transitions. [2021-11-07 01:01:37,148 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 261 transitions. Word has length 47 [2021-11-07 01:01:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:01:37,149 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 261 transitions. [2021-11-07 01:01:37,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:01:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 261 transitions. [2021-11-07 01:01:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 01:01:37,156 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:01:37,157 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:01:37,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:01:37,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:01:37,373 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:01:37,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:01:37,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2135716593, now seen corresponding path program 1 times [2021-11-07 01:01:37,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:01:37,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572442304] [2021-11-07 01:01:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:01:37,382 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:01:37,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:01:37,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:01:37,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8316a779-1471-4aef-bdcf-409ba3a43ef6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:01:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:01:41,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1843 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:01:41,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:01:42,343 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:01:42,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 62 [2021-11-07 01:01:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:01:42,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:01:55,401 WARN L207 SmtUtils]: Spent 12.29 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:01:55,407 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:01:55,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772