./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_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_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/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_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/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_76135676-4cf4-4a33-9360-b031eeeeae99/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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:30:34,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:30:34,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:30:34,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:30:34,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:30:34,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:30:34,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:30:34,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:30:34,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:30:34,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:30:34,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:30:34,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:30:34,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:30:35,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:30:35,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:30:35,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:30:35,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:30:35,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:30:35,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:30:35,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:30:35,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:30:35,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:30:35,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:30:35,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:30:35,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:30:35,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:30:35,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:30:35,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:30:35,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:30:35,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:30:35,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:30:35,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:30:35,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:30:35,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:30:35,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:30:35,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:30:35,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:30:35,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:30:35,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:30:35,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:30:35,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:30:35,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:30:35,068 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:30:35,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:30:35,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:30:35,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:30:35,069 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:30:35,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:30:35,070 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:30:35,070 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:30:35,071 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:30:35,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:30:35,071 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:30:35,071 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:30:35,072 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:30:35,072 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:30:35,072 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:30:35,072 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:30:35,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:30:35,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:30:35,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:30:35,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:30:35,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:30:35,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:30:35,075 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:30:35,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:30:35,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:30:35,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:30:35,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:30:35,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:30:35,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:35,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:30:35,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:30:35,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:30:35,078 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:30:35,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:30:35,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:30:35,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:30:35,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:30:35,079 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_76135676-4cf4-4a33-9360-b031eeeeae99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-19 14:30:35,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:30:35,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:30:35,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:30:35,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:30:35,398 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:30:35,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-19 14:30:35,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/38372dc92/9bd0c488727147dca2bb5626914b08b1/FLAG7dfc12962 [2021-11-19 14:30:36,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:30:36,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-19 14:30:36,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/38372dc92/9bd0c488727147dca2bb5626914b08b1/FLAG7dfc12962 [2021-11-19 14:30:36,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/38372dc92/9bd0c488727147dca2bb5626914b08b1 [2021-11-19 14:30:36,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:30:36,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:30:36,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:36,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:30:36,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:30:36,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:36" (1/1) ... [2021-11-19 14:30:36,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20637e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:36, skipping insertion in model container [2021-11-19 14:30:36,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:36" (1/1) ... [2021-11-19 14:30:36,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:30:36,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:37,316 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-19 14:30:37,325 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-19 14:30:37,355 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:30:37,362 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:30:38,450 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,451 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,453 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,454 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,457 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,486 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,488 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,496 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,497 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:38,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:30:38,963 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:30:38,966 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:30:38,968 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:30:38,971 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:30:38,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:30:38,976 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:30:38,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:30:38,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:30:38,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:30:39,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:30:39,303 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:39,310 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:39,427 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:39,477 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:30:39,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21ffad42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:39, skipping insertion in model container [2021-11-19 14:30:39,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:39,480 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:30:39,482 INFO L158 Benchmark]: Toolchain (without parser) took 2645.30ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 74.9MB in the end (delta: 20.6MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-11-19 14:30:39,483 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 64.0MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:30:39,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2642.62ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 74.9MB in the end (delta: 20.6MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-11-19 14:30:39,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 64.0MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2642.62ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 74.9MB in the end (delta: 20.6MB). Peak memory consumption was 43.6MB. 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_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/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_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/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_76135676-4cf4-4a33-9360-b031eeeeae99/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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:30:41,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:30:41,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:30:41,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:30:41,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:30:41,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:30:41,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:30:41,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:30:41,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:30:41,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:30:41,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:30:41,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:30:41,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:30:41,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:30:41,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:30:41,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:30:41,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:30:41,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:30:41,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:30:41,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:30:41,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:30:41,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:30:41,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:30:41,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:30:41,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:30:41,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:30:41,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:30:41,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:30:41,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:30:41,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:30:41,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:30:41,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:30:41,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:30:41,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:30:41,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:30:41,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:30:41,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:30:41,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:30:41,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:30:41,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:30:41,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:30:41,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:30:41,899 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:30:41,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:30:41,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:30:41,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:30:41,901 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:30:41,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:30:41,902 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:30:41,902 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:30:41,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:30:41,903 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:30:41,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:30:41,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:30:41,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:30:41,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:30:41,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:30:41,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:30:41,907 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:30:41,907 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:30:41,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:30:41,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:30:41,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:30:41,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:30:41,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:30:41,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:30:41,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:41,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:30:41,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:30:41,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:30:41,910 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:30:41,911 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:41,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:30:41,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:30:41,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:30:41,912 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_76135676-4cf4-4a33-9360-b031eeeeae99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-19 14:30:42,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:30:42,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:30:42,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:30:42,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:30:42,360 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:30:42,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-19 14:30:42,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/cc7a1476d/6d5dca11f99a4463a96a6fb37540add1/FLAGe16cf9e9c [2021-11-19 14:30:43,271 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:30:43,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-19 14:30:43,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/cc7a1476d/6d5dca11f99a4463a96a6fb37540add1/FLAGe16cf9e9c [2021-11-19 14:30:43,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/data/cc7a1476d/6d5dca11f99a4463a96a6fb37540add1 [2021-11-19 14:30:43,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:30:43,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:30:43,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:43,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:30:43,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:30:43,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:43,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf1a50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43, skipping insertion in model container [2021-11-19 14:30:43,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:43,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:30:43,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:44,319 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-19 14:30:44,330 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-19 14:30:44,365 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:30:44,373 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:30:45,603 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,604 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,605 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,608 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,610 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,643 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,644 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,648 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:45,649 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:30:46,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:30:46,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:30:46,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:30:46,107 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:30:46,108 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:30:46,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:30:46,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:30:46,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:30:46,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:30:46,315 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:30:46,419 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,419 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,484 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:46,587 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:30:46,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:46,644 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-19 14:30:46,645 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-19 14:30:46,646 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:30:46,649 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:30:46,726 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,726 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,727 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,727 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,736 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,752 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,758 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,763 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,767 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,832 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:30:46,833 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:30:46,834 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:30:46,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:30:46,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:30:46,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:30:46,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:30:46,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:30:46,843 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:30:46,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:30:46,883 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:30:46,994 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:46,994 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,020 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:47,049 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:30:47,062 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-19 14:30:47,062 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_76135676-4cf4-4a33-9360-b031eeeeae99/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-19 14:30:47,064 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:30:47,064 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:30:47,098 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,099 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,099 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,099 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,100 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,113 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,114 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,115 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,115 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,181 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:30:47,182 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:30:47,184 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:30:47,185 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:30:47,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:30:47,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:30:47,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:30:47,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:30:47,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:30:47,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:30:47,216 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:30:47,288 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,289 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:30:47,365 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:47,712 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:30:47,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47 WrapperNode [2021-11-19 14:30:47,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:47,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:47,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:30:47,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:30:47,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:47,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:47,934 INFO L137 Inliner]: procedures = 712, calls = 2622, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 797 [2021-11-19 14:30:47,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:47,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:30:47,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:30:47,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:30:47,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:47,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:47,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:47,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:48,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:48,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:48,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:48,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:30:48,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:30:48,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:30:48,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:30:48,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (1/1) ... [2021-11-19 14:30:48,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:48,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:48,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:30:48,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:30:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-19 14:30:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-19 14:30:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-19 14:30:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-19 14:30:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:30:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 14:30:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 14:30:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:30:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:30:48,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:30:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:30:48,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:30:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_left_trim_pred [2021-11-19 14:30:48,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_left_trim_pred [2021-11-19 14:30:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:30:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:30:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:30:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:30:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:30:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:30:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:30:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:30:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-19 14:30:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-19 14:30:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:30:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:30:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:30:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:30:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:30:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:30:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:30:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:30:48,455 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:30:48,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:30:52,314 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:30:52,327 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:30:52,328 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:30:52,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:52 BoogieIcfgContainer [2021-11-19 14:30:52,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:30:52,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:30:52,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:30:52,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:30:52,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:30:43" (1/3) ... [2021-11-19 14:30:52,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f342c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:52, skipping insertion in model container [2021-11-19 14:30:52,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:47" (2/3) ... [2021-11-19 14:30:52,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f342c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:52, skipping insertion in model container [2021-11-19 14:30:52,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:52" (3/3) ... [2021-11-19 14:30:52,351 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_left_trim_pred_harness.i [2021-11-19 14:30:52,357 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:30:52,357 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:30:52,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:30:52,437 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:30:52,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:30:52,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-19 14:30:52,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 14:30:52,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:52,473 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2021-11-19 14:30:52,474 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1215746245, now seen corresponding path program 1 times [2021-11-19 14:30:52,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:52,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784714976] [2021-11-19 14:30:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:52,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:52,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:52,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:52,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:30:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:53,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:30:53,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-19 14:30:53,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:30:53,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:53,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784714976] [2021-11-19 14:30:53,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784714976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:53,733 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:53,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:30:53,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588566223] [2021-11-19 14:30:53,738 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:53,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:30:53,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:53,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:30:53,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:30:53,784 INFO L87 Difference]: Start difference. First operand has 95 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:30:53,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:53,817 INFO L93 Difference]: Finished difference Result 186 states and 253 transitions. [2021-11-19 14:30:53,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:30:53,821 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2021-11-19 14:30:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:53,830 INFO L225 Difference]: With dead ends: 186 [2021-11-19 14:30:53,830 INFO L226 Difference]: Without dead ends: 86 [2021-11-19 14:30:53,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:30:53,838 INFO L933 BasicCegarLoop]: 119 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, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:53,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:30:53,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-19 14:30:53,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-19 14:30:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 57 states have internal predecessors, (66), 22 states have call successors, (22), 8 states have call predecessors, (22), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 14:30:53,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2021-11-19 14:30:53,884 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 61 [2021-11-19 14:30:53,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:53,884 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2021-11-19 14:30:53,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:30:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2021-11-19 14:30:53,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-19 14:30:53,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:53,889 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2021-11-19 14:30:53,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 14:30:54,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:54,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:54,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:54,111 INFO L85 PathProgramCache]: Analyzing trace with hash 121767508, now seen corresponding path program 1 times [2021-11-19 14:30:54,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:54,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363478274] [2021-11-19 14:30:54,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:54,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:54,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:54,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:54,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:30:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:55,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:30:55,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-19 14:30:55,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 14:30:55,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:55,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363478274] [2021-11-19 14:30:55,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363478274] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:55,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:30:55,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 14:30:55,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219955557] [2021-11-19 14:30:55,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:55,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:30:55,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:55,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:30:55,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:30:55,680 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:30:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:55,891 INFO L93 Difference]: Finished difference Result 155 states and 200 transitions. [2021-11-19 14:30:55,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:30:55,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2021-11-19 14:30:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:55,896 INFO L225 Difference]: With dead ends: 155 [2021-11-19 14:30:55,896 INFO L226 Difference]: Without dead ends: 89 [2021-11-19 14:30:55,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:30:55,899 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 27 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:55,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 341 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:30:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-19 14:30:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-19 14:30:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2021-11-19 14:30:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2021-11-19 14:30:55,921 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 63 [2021-11-19 14:30:55,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:55,921 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-11-19 14:30:55,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:30:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2021-11-19 14:30:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 14:30:55,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:55,925 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2021-11-19 14:30:55,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:56,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:56,150 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:56,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:56,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1486959695, now seen corresponding path program 1 times [2021-11-19 14:30:56,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:56,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973954420] [2021-11-19 14:30:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:56,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:56,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:56,156 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:56,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:30:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:57,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:30:57,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 14:30:57,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 14:30:57,700 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:57,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973954420] [2021-11-19 14:30:57,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973954420] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:57,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:30:57,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2021-11-19 14:30:57,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666050308] [2021-11-19 14:30:57,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:57,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:30:57,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:57,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:30:57,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:57,703 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-19 14:30:57,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:57,934 INFO L93 Difference]: Finished difference Result 148 states and 189 transitions. [2021-11-19 14:30:57,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:30:57,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2021-11-19 14:30:57,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:57,938 INFO L225 Difference]: With dead ends: 148 [2021-11-19 14:30:57,938 INFO L226 Difference]: Without dead ends: 89 [2021-11-19 14:30:57,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:30:57,940 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 47 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:57,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 418 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:30:57,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-19 14:30:57,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-19 14:30:57,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-19 14:30:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 112 transitions. [2021-11-19 14:30:57,953 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 112 transitions. Word has length 65 [2021-11-19 14:30:57,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:57,953 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 112 transitions. [2021-11-19 14:30:57,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-19 14:30:57,954 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 112 transitions. [2021-11-19 14:30:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-19 14:30:57,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:57,957 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-19 14:30:57,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:58,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:58,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1438008465, now seen corresponding path program 1 times [2021-11-19 14:30:58,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:58,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438625172] [2021-11-19 14:30:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:58,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:58,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:58,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:58,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:30:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:59,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-19 14:30:59,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 14:31:04,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:18,491 WARN L227 SmtUtils]: Spent 10.09s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:31:18,499 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-19 14:31:18,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771 [2021-11-19 14:43:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:43:01,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:43:01,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438625172] [2021-11-19 14:43:01,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438625172] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:43:01,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2120106255] [2021-11-19 14:43:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:43:01,193 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:43:01,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:43:01,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:43:01,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-19 14:43:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:43:07,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:43:07,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:43:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 14:43:08,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:43:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 14:43:08,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2120106255] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:43:08,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:43:08,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17, 15, 8] total 32 [2021-11-19 14:43:08,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825679881] [2021-11-19 14:43:08,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:43:08,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:43:08,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:43:08,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:43:08,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=901, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:43:08,570 INFO L87 Difference]: Start difference. First operand 89 states and 112 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-19 14:43:08,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:43:08,877 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2021-11-19 14:43:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:43:08,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2021-11-19 14:43:08,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:43:08,880 INFO L225 Difference]: With dead ends: 101 [2021-11-19 14:43:08,881 INFO L226 Difference]: Without dead ends: 99 [2021-11-19 14:43:08,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 234 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=101, Invalid=1021, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:43:08,883 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 17 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:43:08,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 727 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:43:08,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-19 14:43:08,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2021-11-19 14:43:08,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.15625) internal successors, (74), 67 states have internal predecessors, (74), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (29), 21 states have call predecessors, (29), 21 states have call successors, (29) [2021-11-19 14:43:08,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 126 transitions. [2021-11-19 14:43:08,900 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 126 transitions. Word has length 69 [2021-11-19 14:43:08,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:43:08,901 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 126 transitions. [2021-11-19 14:43:08,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-19 14:43:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 126 transitions. [2021-11-19 14:43:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:43:08,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:43:08,905 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-19 14:43:08,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:43:09,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:43:09,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:43:09,306 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:43:09,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:43:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash 983395383, now seen corresponding path program 1 times [2021-11-19 14:43:09,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:43:09,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625844552] [2021-11-19 14:43:09,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:43:09,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:43:09,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:43:09,310 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:43:09,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76135676-4cf4-4a33-9360-b031eeeeae99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:43:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:43:10,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:43:10,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:43:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 14:43:13,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:43:27,240 WARN L227 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:43:27,244 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-19 14:43:27,244 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