./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:48:30,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:48:30,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:48:30,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:48:30,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:48:30,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:48:30,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:48:30,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:48:30,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:48:30,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:48:30,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:48:30,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:48:30,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:48:30,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:48:30,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:48:30,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:48:30,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:48:30,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:48:30,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:48:30,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:48:30,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:48:30,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:48:30,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:48:30,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:48:30,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:48:30,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:48:30,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:48:30,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:48:30,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:48:30,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:48:30,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:48:30,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:48:30,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:48:30,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:48:30,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:48:30,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:48:30,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:48:30,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:48:30,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:48:30,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:48:30,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:48:30,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:48:31,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:48:31,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:48:31,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:48:31,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:48:31,038 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:48:31,038 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:48:31,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:48:31,039 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:48:31,040 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:48:31,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:48:31,041 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:48:31,041 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:48:31,042 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:48:31,042 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:48:31,043 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:48:31,043 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:48:31,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:48:31,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:48:31,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:48:31,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:48:31,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:48:31,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:48:31,047 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:48:31,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:48:31,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:48:31,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:48:31,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:48:31,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:48:31,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:48:31,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:48:31,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:48:31,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:48:31,051 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:48:31,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:48:31,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:48:31,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:48:31,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:48:31,052 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_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc [2021-11-19 15:48:31,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:48:31,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:48:31,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:48:31,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:48:31,399 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:48:31,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-19 15:48:31,504 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/5eae82563/3980ffb49f0042f682ae54a1bfa1e739/FLAGd31a5d2fb [2021-11-19 15:48:32,649 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:48:32,650 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-19 15:48:32,714 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/5eae82563/3980ffb49f0042f682ae54a1bfa1e739/FLAGd31a5d2fb [2021-11-19 15:48:32,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/5eae82563/3980ffb49f0042f682ae54a1bfa1e739 [2021-11-19 15:48:32,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:48:32,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:48:32,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:32,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:48:32,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:48:33,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:32" (1/1) ... [2021-11-19 15:48:33,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47db3538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:33, skipping insertion in model container [2021-11-19 15:48:33,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:32" (1/1) ... [2021-11-19 15:48:33,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:48:33,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:48:33,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-19 15:48:33,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-19 15:48:33,525 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:33,533 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:34,802 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,817 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,819 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,821 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,822 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,844 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,847 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,851 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,852 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:35,460 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:35,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:35,463 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:35,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:35,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:35,472 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:35,473 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:35,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:35,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:35,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:35,703 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:35,885 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:35,886 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:35,999 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:36,100 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:48:36,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c7f8304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:36, skipping insertion in model container [2021-11-19 15:48:36,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:36,103 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:48:36,106 INFO L158 Benchmark]: Toolchain (without parser) took 3110.15ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 66.3MB in the beginning and 71.3MB in the end (delta: -5.0MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2021-11-19 15:48:36,107 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:48:36,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3107.18ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 66.3MB in the beginning and 71.3MB in the end (delta: -5.0MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2021-11-19 15:48:36,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3107.18ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 66.3MB in the beginning and 71.3MB in the end (delta: -5.0MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:48:38,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:48:38,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:48:38,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:48:38,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:48:38,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:48:38,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:48:38,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:48:38,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:48:38,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:48:38,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:48:38,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:48:38,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:48:38,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:48:38,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:48:38,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:48:38,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:48:38,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:48:38,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:48:38,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:48:38,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:48:38,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:48:38,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:48:38,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:48:38,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:48:38,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:48:38,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:48:39,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:48:39,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:48:39,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:48:39,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:48:39,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:48:39,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:48:39,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:48:39,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:48:39,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:48:39,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:48:39,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:48:39,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:48:39,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:48:39,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:48:39,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:48:39,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:48:39,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:48:39,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:48:39,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:48:39,094 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:48:39,094 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:48:39,095 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:48:39,095 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:48:39,095 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:48:39,095 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:48:39,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:48:39,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:48:39,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:48:39,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:48:39,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:48:39,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:48:39,100 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:48:39,100 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:48:39,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:48:39,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:48:39,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:48:39,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:48:39,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:48:39,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:48:39,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:48:39,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:48:39,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:48:39,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:48:39,103 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:48:39,103 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:48:39,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:48:39,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:48:39,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:48:39,104 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_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc [2021-11-19 15:48:39,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:48:39,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:48:39,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:48:39,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:48:39,639 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:48:39,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-19 15:48:39,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/34ad327f1/97e785026c644340811de4875bd3ff85/FLAGd77035064 [2021-11-19 15:48:40,834 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:48:40,842 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-19 15:48:40,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/34ad327f1/97e785026c644340811de4875bd3ff85/FLAGd77035064 [2021-11-19 15:48:41,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/data/34ad327f1/97e785026c644340811de4875bd3ff85 [2021-11-19 15:48:41,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:48:41,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:48:41,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:41,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:48:41,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:48:41,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:41" (1/1) ... [2021-11-19 15:48:41,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76740d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:41, skipping insertion in model container [2021-11-19 15:48:41,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:41" (1/1) ... [2021-11-19 15:48:41,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:48:41,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:48:41,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-19 15:48:41,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-19 15:48:41,806 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:41,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:43,050 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,051 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,052 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,054 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,055 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,076 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,077 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,079 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,080 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:43,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:43,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:43,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:43,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:43,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:43,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:43,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:43,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:43,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:43,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:43,895 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:44,014 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,019 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,169 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:44,279 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:48:44,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:48:44,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-19 15:48:44,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-19 15:48:44,407 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:44,409 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:44,477 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,478 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,478 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,479 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,488 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,506 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,506 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,511 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,512 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:44,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:44,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:44,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:44,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:44,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:44,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:44,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:44,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:44,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:44,652 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:44,719 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,719 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,747 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:44,780 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:48:44,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-19 15:48:44,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-19 15:48:44,821 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:44,821 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:44,878 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,879 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,879 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,880 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,881 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,886 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,887 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,888 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,889 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:44,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:44,926 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:44,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:44,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:44,928 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:44,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:44,930 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:44,930 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:44,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:44,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:44,953 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:45,058 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:45,059 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:45,093 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:45,590 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:48:45,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45 WrapperNode [2021-11-19 15:48:45,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:45,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:48:45,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:48:45,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:48:45,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:45,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:45,858 INFO L137 Inliner]: procedures = 712, calls = 2622, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 891 [2021-11-19 15:48:45,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:48:45,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:48:45,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:48:45,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:48:45,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:45,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:45,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:45,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:45,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:46,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:46,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:46,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:48:46,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:48:46,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:48:46,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:48:46,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (1/1) ... [2021-11-19 15:48:46,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:48:46,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:48:46,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:48:46,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:48:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-19 15:48:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-19 15:48:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-19 15:48:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-19 15:48:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:48:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 15:48:46,185 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 15:48:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:48:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:48:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:48:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 15:48:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 15:48:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_left_trim_pred [2021-11-19 15:48:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_left_trim_pred [2021-11-19 15:48:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:48:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:48:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:48:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:48:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:48:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 15:48:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 15:48:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:48:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-19 15:48:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-19 15:48:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:48:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:48:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:48:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:48:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:48:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:48:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:48:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:48:46,648 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:48:46,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:48:51,334 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:48:51,343 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:48:51,343 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 15:48:51,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:48:51 BoogieIcfgContainer [2021-11-19 15:48:51,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:48:51,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:48:51,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:48:51,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:48:51,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:48:41" (1/3) ... [2021-11-19 15:48:51,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2374d791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:48:51, skipping insertion in model container [2021-11-19 15:48:51,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:45" (2/3) ... [2021-11-19 15:48:51,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2374d791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:48:51, skipping insertion in model container [2021-11-19 15:48:51,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:48:51" (3/3) ... [2021-11-19 15:48:51,356 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_trim_pred_harness.i [2021-11-19 15:48:51,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:48:51,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:48:51,424 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:48:51,432 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:48:51,433 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:48:51,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 78 states have internal predecessors, (95), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-19 15:48:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 15:48:51,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:51,470 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:51,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:51,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:51,477 INFO L85 PathProgramCache]: Analyzing trace with hash 301715553, now seen corresponding path program 1 times [2021-11-19 15:48:51,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:51,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967398572] [2021-11-19 15:48:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:51,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:51,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:51,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:51,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:48:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:52,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 15:48:52,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 15:48:53,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 15:48:53,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:53,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967398572] [2021-11-19 15:48:53,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967398572] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:48:53,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:48:53,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 15:48:53,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758311305] [2021-11-19 15:48:53,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:53,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 15:48:53,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:53,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 15:48:53,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:48:53,333 INFO L87 Difference]: Start difference. First operand has 124 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 78 states have internal predecessors, (95), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-19 15:48:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:53,417 INFO L93 Difference]: Finished difference Result 244 states and 355 transitions. [2021-11-19 15:48:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 15:48:53,420 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2021-11-19 15:48:53,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:53,437 INFO L225 Difference]: With dead ends: 244 [2021-11-19 15:48:53,437 INFO L226 Difference]: Without dead ends: 115 [2021-11-19 15:48:53,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:48:53,453 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:53,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:48:53,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-19 15:48:53,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-19 15:48:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 37 states have call successors, (37), 8 states have call predecessors, (37), 7 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-19 15:48:53,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2021-11-19 15:48:53,549 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 79 [2021-11-19 15:48:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:53,550 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2021-11-19 15:48:53,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-19 15:48:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2021-11-19 15:48:53,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-19 15:48:53,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:53,567 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:53,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:48:53,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:53,783 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:53,784 INFO L85 PathProgramCache]: Analyzing trace with hash 239309438, now seen corresponding path program 1 times [2021-11-19 15:48:53,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:53,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230014085] [2021-11-19 15:48:53,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:53,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:53,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:53,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:53,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:48:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:54,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:48:54,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 15:48:55,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 15:48:55,699 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:55,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230014085] [2021-11-19 15:48:55,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230014085] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:48:55,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:48:55,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 15:48:55,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603590649] [2021-11-19 15:48:55,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:55,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:48:55,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:55,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:48:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:48:55,704 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-19 15:48:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:55,989 INFO L93 Difference]: Finished difference Result 213 states and 298 transitions. [2021-11-19 15:48:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:48:55,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2021-11-19 15:48:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:55,995 INFO L225 Difference]: With dead ends: 213 [2021-11-19 15:48:55,995 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 15:48:55,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:48:55,998 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 43 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:55,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 461 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:48:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 15:48:56,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 15:48:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 74 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (45), 35 states have call predecessors, (45), 35 states have call successors, (45) [2021-11-19 15:48:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 166 transitions. [2021-11-19 15:48:56,022 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 166 transitions. Word has length 81 [2021-11-19 15:48:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:56,023 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 166 transitions. [2021-11-19 15:48:56,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-19 15:48:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 166 transitions. [2021-11-19 15:48:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 15:48:56,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:56,026 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:56,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 15:48:56,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:56,251 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:56,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:56,252 INFO L85 PathProgramCache]: Analyzing trace with hash -679055495, now seen corresponding path program 1 times [2021-11-19 15:48:56,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:56,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612016765] [2021-11-19 15:48:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:56,255 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:56,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:56,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:48:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:57,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:48:57,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-19 15:48:57,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 15:48:58,255 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:58,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612016765] [2021-11-19 15:48:58,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612016765] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:48:58,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:48:58,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2021-11-19 15:48:58,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206189559] [2021-11-19 15:48:58,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:58,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:48:58,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:58,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:48:58,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:48:58,262 INFO L87 Difference]: Start difference. First operand 118 states and 166 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 15:48:58,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:58,566 INFO L93 Difference]: Finished difference Result 208 states and 295 transitions. [2021-11-19 15:48:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:48:58,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 83 [2021-11-19 15:48:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:58,570 INFO L225 Difference]: With dead ends: 208 [2021-11-19 15:48:58,570 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 15:48:58,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:48:58,572 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 61 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:58,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 458 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 15:48:58,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 15:48:58,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 15:48:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 74 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (43), 35 states have call predecessors, (43), 35 states have call successors, (43) [2021-11-19 15:48:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2021-11-19 15:48:58,594 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 83 [2021-11-19 15:48:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:58,595 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2021-11-19 15:48:58,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 15:48:58,596 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2021-11-19 15:48:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-19 15:48:58,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:58,598 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2021-11-19 15:48:58,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:48:58,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:58,811 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:58,812 INFO L85 PathProgramCache]: Analyzing trace with hash -696220556, now seen corresponding path program 2 times [2021-11-19 15:48:58,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:58,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995976970] [2021-11-19 15:48:58,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:48:58,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:58,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:58,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:58,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:49:13,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 15:49:13,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:49:13,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 15:49:13,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 15:49:13,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 15:49:14,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:49:14,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995976970] [2021-11-19 15:49:14,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995976970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:49:14,310 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:49:14,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-19 15:49:14,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737793144] [2021-11-19 15:49:14,310 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:49:14,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 15:49:14,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:49:14,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 15:49:14,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:49:14,312 INFO L87 Difference]: Start difference. First operand 118 states and 164 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 15:49:14,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:49:14,731 INFO L93 Difference]: Finished difference Result 201 states and 281 transitions. [2021-11-19 15:49:14,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:49:14,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 85 [2021-11-19 15:49:14,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:49:14,735 INFO L225 Difference]: With dead ends: 201 [2021-11-19 15:49:14,735 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 15:49:14,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:49:14,737 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 77 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:49:14,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 697 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 15:49:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 15:49:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 15:49:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 74 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2021-11-19 15:49:14,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 162 transitions. [2021-11-19 15:49:14,759 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 162 transitions. Word has length 85 [2021-11-19 15:49:14,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:49:14,760 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 162 transitions. [2021-11-19 15:49:14,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 15:49:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2021-11-19 15:49:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-19 15:49:14,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:49:14,763 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:49:14,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 15:49:14,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:49:14,975 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:49:14,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:49:14,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1235767316, now seen corresponding path program 1 times [2021-11-19 15:49:14,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:49:14,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76502541] [2021-11-19 15:49:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:49:14,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:49:14,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:49:14,978 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:49:14,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1d0332-e6d4-48d7-b69d-bc84d3aea39a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:49:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:49:16,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-19 15:49:16,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 16 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-19 15:49:21,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:37,509 WARN L227 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 15:49:37,518 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-19 15:49:37,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771