./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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 b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:38:41,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:38:41,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:38:41,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:38:41,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:38:41,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:38:41,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:38:41,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:38:41,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:38:41,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:38:41,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:38:41,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:38:41,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:38:41,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:38:41,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:38:41,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:38:41,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:38:41,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:38:41,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:38:41,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:38:41,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:38:41,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:38:41,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:38:41,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:38:41,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:38:41,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:38:41,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:38:41,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:38:41,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:38:41,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:38:41,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:38:41,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:38:41,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:38:41,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:38:41,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:38:41,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:38:41,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:38:41,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:38:41,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:38:41,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:38:41,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:38:41,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:38:41,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:38:41,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:38:41,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:38:41,631 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:38:41,632 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:38:41,632 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:38:41,632 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:38:41,632 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:38:41,640 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:38:41,641 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:38:41,642 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:38:41,643 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:38:41,643 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:38:41,644 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:38:41,644 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:38:41,644 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:38:41,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:38:41,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:38:41,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:38:41,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:38:41,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:38:41,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:38:41,648 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:38:41,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:38:41,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:38:41,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:38:41,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:38:41,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:38:41,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:38:41,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:38:41,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:38:41,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:38:41,654 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:38:41,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:38:41,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:38:41,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:38:41,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:38:41,656 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a [2021-11-19 14:38:42,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:38:42,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:38:42,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:38:42,097 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:38:42,098 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:38:42,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-19 14:38:42,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/71ac2574c/e577e110b36f4b9cbe62287f1fe202ff/FLAG423a16e58 [2021-11-19 14:38:43,266 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:38:43,269 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-19 14:38:43,337 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/71ac2574c/e577e110b36f4b9cbe62287f1fe202ff/FLAG423a16e58 [2021-11-19 14:38:43,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/71ac2574c/e577e110b36f4b9cbe62287f1fe202ff [2021-11-19 14:38:43,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:38:43,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:38:43,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:43,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:38:43,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:38:43,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:43" (1/1) ... [2021-11-19 14:38:43,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c66f8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:43, skipping insertion in model container [2021-11-19 14:38:43,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:43" (1/1) ... [2021-11-19 14:38:43,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:38:43,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:38:44,189 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-19 14:38:44,200 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-19 14:38:44,239 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:38:44,250 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:38:45,645 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,650 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,651 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,653 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,655 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,677 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,678 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,680 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:45,681 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:46,163 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:38:46,164 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:38:46,165 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:38:46,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:38:46,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:38:46,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:38:46,171 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:38:46,172 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:38:46,173 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:38:46,174 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:38:46,420 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:38:46,599 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:46,600 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:46,736 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:46,842 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 14:38:46,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d2f5228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:46, skipping insertion in model container [2021-11-19 14:38:46,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:46,844 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:38:46,848 INFO L158 Benchmark]: Toolchain (without parser) took 3223.42ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 65.6MB in the beginning and 61.2MB in the end (delta: 4.4MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2021-11-19 14:38:46,849 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 92.3MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:38:46,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3220.02ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 65.4MB in the beginning and 61.2MB in the end (delta: 4.2MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2021-11-19 14:38:46,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 92.3MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3220.02ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 65.4MB in the beginning and 61.2MB in the end (delta: 4.2MB). Peak memory consumption was 34.3MB. 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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 b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:38:49,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:38:49,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:38:49,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:38:49,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:38:49,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:38:49,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:38:49,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:38:49,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:38:49,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:38:49,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:38:49,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:38:49,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:38:49,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:38:49,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:38:49,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:38:49,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:38:49,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:38:49,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:38:49,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:38:49,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:38:49,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:38:49,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:38:49,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:38:49,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:38:49,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:38:49,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:38:49,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:38:49,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:38:49,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:38:49,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:38:49,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:38:49,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:38:49,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:38:49,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:38:49,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:38:49,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:38:49,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:38:49,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:38:49,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:38:49,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:38:49,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:38:49,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:38:49,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:38:49,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:38:49,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:38:49,885 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:38:49,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:38:49,886 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:38:49,886 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:38:49,886 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:38:49,887 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:38:49,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:38:49,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:38:49,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:38:49,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:38:49,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:38:49,889 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:38:49,889 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:38:49,890 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:38:49,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:38:49,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:38:49,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:38:49,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:38:49,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:38:49,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:38:49,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:38:49,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:38:49,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:38:49,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:38:49,893 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:38:49,893 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:38:49,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:38:49,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:38:49,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:38:49,894 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a [2021-11-19 14:38:50,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:38:50,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:38:50,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:38:50,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:38:50,493 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:38:50,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-19 14:38:50,589 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/f26b31243/e8a2859711ad438b84662db5e89bc478/FLAG0df670266 [2021-11-19 14:38:51,755 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:38:51,756 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-19 14:38:51,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/f26b31243/e8a2859711ad438b84662db5e89bc478/FLAG0df670266 [2021-11-19 14:38:52,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/data/f26b31243/e8a2859711ad438b84662db5e89bc478 [2021-11-19 14:38:52,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:38:52,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:38:52,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:52,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:38:52,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:38:52,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:52" (1/1) ... [2021-11-19 14:38:52,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d59a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:52, skipping insertion in model container [2021-11-19 14:38:52,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:52" (1/1) ... [2021-11-19 14:38:52,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:38:52,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:38:52,815 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-19 14:38:52,827 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-19 14:38:52,867 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:38:52,877 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:38:54,100 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,101 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,102 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,103 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,105 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,126 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,127 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,130 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,131 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:54,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:38:54,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:38:54,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:38:54,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:38:54,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:38:54,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:38:54,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:38:54,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:38:54,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:38:54,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:38:54,962 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:38:55,147 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,148 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,274 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:55,390 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:38:55,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:38:55,517 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-19 14:38:55,518 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-19 14:38:55,520 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:38:55,523 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:38:55,612 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,613 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,613 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,614 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,615 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,628 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,629 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,633 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,634 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:38:55,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:38:55,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:38:55,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:38:55,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:38:55,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:38:55,714 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:38:55,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:38:55,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:38:55,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:38:55,763 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:38:55,903 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,903 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:55,952 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:56,010 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:38:56,040 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-19 14:38:56,040 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_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-19 14:38:56,042 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:38:56,043 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:38:56,132 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,132 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,133 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,133 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,134 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,141 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,141 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,144 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,144 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:38:56,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:38:56,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:38:56,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:38:56,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:38:56,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:38:56,194 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:38:56,195 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:38:56,196 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:38:56,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:38:56,227 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:38:56,419 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,419 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:38:56,475 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:56,881 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:38:56,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56 WrapperNode [2021-11-19 14:38:56,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:56,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:38:56,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:38:56,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:38:56,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,190 INFO L137 Inliner]: procedures = 712, calls = 2614, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 801 [2021-11-19 14:38:57,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:38:57,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:38:57,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:38:57,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:38:57,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:38:57,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:38:57,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:38:57,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:38:57,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (1/1) ... [2021-11-19 14:38:57,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:38:57,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:38:57,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:38:57,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:38:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-19 14:38:57,406 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-19 14:38:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:38:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 14:38:57,407 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 14:38:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:38:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:38:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:38:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:38:57,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:38:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:38:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:38:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:38:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:38:57,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:38:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:38:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:38:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:38:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:38:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:38:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:38:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:38:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:38:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:38:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:38:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 14:38:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 14:38:57,870 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:38:57,872 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:39:02,369 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:39:02,377 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:39:02,393 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:39:02,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:02 BoogieIcfgContainer [2021-11-19 14:39:02,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:39:02,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:39:02,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:39:02,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:39:02,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:38:52" (1/3) ... [2021-11-19 14:39:02,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31771f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:02, skipping insertion in model container [2021-11-19 14:39:02,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:56" (2/3) ... [2021-11-19 14:39:02,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31771f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:39:02, skipping insertion in model container [2021-11-19 14:39:02,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:39:02" (3/3) ... [2021-11-19 14:39:02,413 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_c_str_harness.i [2021-11-19 14:39:02,425 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:39:02,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:39:02,505 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:39:02,513 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 14:39:02,513 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:39:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-19 14:39:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 14:39:02,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:02,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:02,548 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:02,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:02,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1120951196, now seen corresponding path program 1 times [2021-11-19 14:39:02,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:02,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091705381] [2021-11-19 14:39:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:02,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:02,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:02,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:02,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:39:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:03,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:39:03,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:03,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:04,013 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:04,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091705381] [2021-11-19 14:39:04,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091705381] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:04,014 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:04,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:39:04,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906297946] [2021-11-19 14:39:04,018 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:04,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:39:04,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:04,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:39:04,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:04,072 INFO L87 Difference]: Start difference. First operand has 75 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:39:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:04,258 INFO L93 Difference]: Finished difference Result 143 states and 192 transitions. [2021-11-19 14:39:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:39:04,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2021-11-19 14:39:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:04,276 INFO L225 Difference]: With dead ends: 143 [2021-11-19 14:39:04,276 INFO L226 Difference]: Without dead ends: 70 [2021-11-19 14:39:04,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:39:04,287 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:04,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 268 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:39:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-19 14:39:04,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2021-11-19 14:39:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 48 states have internal predecessors, (55), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-19 14:39:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2021-11-19 14:39:04,366 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 20 [2021-11-19 14:39:04,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:04,367 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2021-11-19 14:39:04,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:39:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2021-11-19 14:39:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 14:39:04,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:04,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:04,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:04,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:04,586 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:04,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1379116634, now seen corresponding path program 1 times [2021-11-19 14:39:04,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:04,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731819893] [2021-11-19 14:39:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:04,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:04,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:04,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:04,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:39:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:05,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:39:05,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:05,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:05,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:05,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:05,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:05,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731819893] [2021-11-19 14:39:05,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731819893] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:05,974 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:05,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 14:39:05,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812410291] [2021-11-19 14:39:05,975 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:05,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:39:05,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:05,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:39:05,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:39:05,979 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 14:39:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:06,183 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2021-11-19 14:39:06,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:39:06,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-11-19 14:39:06,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:06,188 INFO L225 Difference]: With dead ends: 115 [2021-11-19 14:39:06,188 INFO L226 Difference]: Without dead ends: 72 [2021-11-19 14:39:06,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 14:39:06,191 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 16 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:06,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 288 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:39:06,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-19 14:39:06,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-11-19 14:39:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 16 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2021-11-19 14:39:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2021-11-19 14:39:06,208 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 20 [2021-11-19 14:39:06,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:06,209 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2021-11-19 14:39:06,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 14:39:06,209 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2021-11-19 14:39:06,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-19 14:39:06,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:06,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:06,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:06,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:06,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2118891841, now seen corresponding path program 1 times [2021-11-19 14:39:06,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:06,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993947076] [2021-11-19 14:39:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:06,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:06,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:06,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:06,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:39:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:07,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:39:07,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:07,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:07,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:07,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993947076] [2021-11-19 14:39:07,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993947076] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:07,796 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:07,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-19 14:39:07,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791086619] [2021-11-19 14:39:07,796 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:07,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:39:07,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:07,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:39:07,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:39:07,806 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:39:08,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:08,043 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2021-11-19 14:39:08,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:39:08,044 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-11-19 14:39:08,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:08,046 INFO L225 Difference]: With dead ends: 84 [2021-11-19 14:39:08,046 INFO L226 Difference]: Without dead ends: 82 [2021-11-19 14:39:08,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:39:08,048 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 17 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:08,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 781 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:39:08,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-19 14:39:08,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2021-11-19 14:39:08,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 58 states have internal predecessors, (63), 17 states have call successors, (17), 7 states have call predecessors, (17), 9 states have return successors, (18), 15 states have call predecessors, (18), 15 states have call successors, (18) [2021-11-19 14:39:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2021-11-19 14:39:08,066 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 22 [2021-11-19 14:39:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:08,066 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2021-11-19 14:39:08,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:39:08,067 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2021-11-19 14:39:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 14:39:08,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:39:08,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:39:08,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:08,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:08,278 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:39:08,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:39:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1628796537, now seen corresponding path program 1 times [2021-11-19 14:39:08,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:39:08,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072366108] [2021-11-19 14:39:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:39:08,282 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:39:08,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:39:08,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:39:08,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea82ca29-e5fc-4521-93f8-d5ddd67c5faf/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:39:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:12,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1327 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 14:39:12,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:13,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:39:13,016 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:39:13,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:39:13,019 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:39:13,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:39:13,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:39:13,022 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:39:13,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:39:13,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 87 [2021-11-19 14:39:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:39:16,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:17,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 437 treesize of output 423