./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:21:02,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:21:02,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:21:02,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:21:02,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:21:02,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:21:02,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:21:02,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:21:02,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:21:02,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:21:02,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:21:02,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:21:02,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:21:02,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:21:02,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:21:02,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:21:02,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:21:02,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:21:02,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:21:02,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:21:02,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:21:02,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:21:02,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:21:02,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:21:02,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:21:02,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:21:02,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:21:02,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:21:03,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:21:03,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:21:03,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:21:03,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:21:03,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:21:03,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:21:03,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:21:03,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:21:03,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:21:03,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:21:03,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:21:03,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:21:03,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:21:03,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:21:03,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:21:03,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:21:03,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:21:03,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:21:03,060 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:21:03,060 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:21:03,061 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:21:03,061 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:21:03,061 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:21:03,061 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:21:03,062 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:21:03,063 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:21:03,063 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:21:03,063 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:21:03,063 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:21:03,064 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:21:03,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:21:03,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:21:03,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:21:03,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:21:03,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:21:03,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:21:03,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:21:03,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:21:03,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:21:03,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:21:03,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:21:03,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:21:03,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:21:03,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:21:03,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:21:03,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:21:03,068 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:21:03,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:21:03,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:21:03,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:21:03,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:21:03,069 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 [2021-11-19 14:21:03,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:21:03,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:21:03,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:21:03,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:21:03,389 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:21:03,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-19 14:21:03,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/c93465955/0a8a93b8625b4493ac94c74301cfb597/FLAG0a231ba70 [2021-11-19 14:21:04,284 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:21:04,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-19 14:21:04,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/c93465955/0a8a93b8625b4493ac94c74301cfb597/FLAG0a231ba70 [2021-11-19 14:21:04,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/c93465955/0a8a93b8625b4493ac94c74301cfb597 [2021-11-19 14:21:04,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:21:04,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:21:04,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:21:04,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:21:04,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:21:04,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:04" (1/1) ... [2021-11-19 14:21:04,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fbeee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:04, skipping insertion in model container [2021-11-19 14:21:04,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:04" (1/1) ... [2021-11-19 14:21:04,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:21:04,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:21:05,203 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-19 14:21:05,209 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-19 14:21:05,233 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:21:05,238 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:21:06,067 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:21:06,146 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,147 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,147 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,148 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,149 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,164 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,168 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,170 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,170 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:21:06,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:21:06,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:21:06,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:21:06,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:21:06,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:21:06,583 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:21:06,583 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:21:06,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:21:06,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:21:06,878 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,879 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:06,960 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:21:07,000 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 14:21:07,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63f0dc5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:07, skipping insertion in model container [2021-11-19 14:21:07,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:21:07,005 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:21:07,008 INFO L158 Benchmark]: Toolchain (without parser) took 2200.75ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 62.4MB in the beginning and 69.4MB in the end (delta: -7.0MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2021-11-19 14:21:07,008 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 90.2MB. Free memory was 65.8MB in the beginning and 65.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:21:07,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2198.25ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 62.2MB in the beginning and 69.4MB in the end (delta: -7.3MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2021-11-19 14:21:07,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 90.2MB. Free memory was 65.8MB in the beginning and 65.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2198.25ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 62.2MB in the beginning and 69.4MB in the end (delta: -7.3MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:21:09,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:21:09,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:21:09,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:21:09,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:21:09,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:21:09,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:21:09,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:21:09,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:21:09,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:21:09,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:21:09,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:21:09,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:21:09,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:21:09,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:21:09,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:21:09,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:21:09,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:21:09,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:21:09,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:21:09,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:21:09,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:21:09,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:21:09,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:21:09,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:21:09,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:21:09,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:21:09,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:21:09,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:21:09,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:21:09,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:21:09,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:21:09,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:21:09,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:21:09,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:21:09,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:21:09,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:21:09,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:21:09,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:21:09,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:21:09,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:21:09,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:21:09,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:21:09,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:21:09,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:21:09,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:21:09,543 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:21:09,544 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:21:09,544 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:21:09,544 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:21:09,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:21:09,545 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:21:09,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:21:09,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:21:09,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:21:09,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:21:09,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:21:09,548 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:21:09,549 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:21:09,549 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:21:09,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:21:09,549 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:21:09,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:21:09,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:21:09,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:21:09,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:21:09,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:21:09,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:21:09,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:21:09,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:21:09,551 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:21:09,551 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:21:09,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:21:09,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:21:09,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:21:09,552 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 [2021-11-19 14:21:09,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:21:09,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:21:09,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:21:09,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:21:09,982 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:21:09,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-19 14:21:10,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/92bc244af/5ea6d0817cda4d56829191e4df80915f/FLAG6ab652c2f [2021-11-19 14:21:10,948 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:21:10,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-19 14:21:10,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/92bc244af/5ea6d0817cda4d56829191e4df80915f/FLAG6ab652c2f [2021-11-19 14:21:11,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/data/92bc244af/5ea6d0817cda4d56829191e4df80915f [2021-11-19 14:21:11,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:21:11,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:21:11,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:21:11,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:21:11,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:21:11,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:11" (1/1) ... [2021-11-19 14:21:11,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce28513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:11, skipping insertion in model container [2021-11-19 14:21:11,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:21:11" (1/1) ... [2021-11-19 14:21:11,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:21:11,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:21:11,985 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-19 14:21:11,992 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-19 14:21:12,016 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:21:12,021 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:21:12,899 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:21:12,972 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,973 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,974 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,974 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,975 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,990 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,991 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,992 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:12,993 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,470 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:21:13,471 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:21:13,472 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:21:13,474 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:21:13,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:21:13,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:21:13,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:21:13,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:21:13,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:21:13,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:21:13,667 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,668 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,724 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:21:13,759 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:21:13,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:21:13,823 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-19 14:21:13,825 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-19 14:21:13,828 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:21:13,836 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:21:13,911 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:21:13,948 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,949 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,949 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,950 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,951 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,961 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,962 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,963 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:13,963 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,017 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:21:14,018 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:21:14,019 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:21:14,020 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:21:14,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:21:14,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:21:14,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:21:14,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:21:14,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:21:14,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:21:14,111 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,112 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,153 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:21:14,172 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:21:14,201 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-19 14:21:14,202 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_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-19 14:21:14,203 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:21:14,204 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:21:14,246 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:21:14,283 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,283 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,284 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,284 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,285 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,293 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,294 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,295 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,295 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:21:14,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:21:14,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:21:14,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:21:14,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:21:14,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:21:14,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:21:14,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:21:14,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:21:14,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:21:14,394 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,395 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:21:14,423 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:21:14,837 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:21:14,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14 WrapperNode [2021-11-19 14:21:14,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:21:14,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:21:14,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:21:14,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:21:14,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:14,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,087 INFO L137 Inliner]: procedures = 711, calls = 1538, calls flagged for inlining = 55, calls inlined = 11, statements flattened = 711 [2021-11-19 14:21:15,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:21:15,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:21:15,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:21:15,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:21:15,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:21:15,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:21:15,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:21:15,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:21:15,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (1/1) ... [2021-11-19 14:21:15,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:21:15,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:21:15,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:21:15,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:21:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-19 14:21:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-19 14:21:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:21:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-19 14:21:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-19 14:21:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-19 14:21:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-19 14:21:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 14:21:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 14:21:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:21:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:21:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:21:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 14:21:15,312 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 14:21:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:21:15,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:21:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:21:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:21:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-19 14:21:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-19 14:21:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:21:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:21:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:21:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-19 14:21:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-19 14:21:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:21:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-19 14:21:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-19 14:21:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-19 14:21:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-19 14:21:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-19 14:21:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-19 14:21:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:21:15,317 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:21:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:21:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-19 14:21:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:21:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:21:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:21:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:21:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-19 14:21:15,323 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-19 14:21:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-19 14:21:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-19 14:21:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2021-11-19 14:21:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2021-11-19 14:21:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-19 14:21:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-19 14:21:15,704 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:21:15,706 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:21:20,011 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:21:20,025 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:21:20,025 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 14:21:20,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:20 BoogieIcfgContainer [2021-11-19 14:21:20,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:21:20,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:21:20,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:21:20,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:21:20,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:21:11" (1/3) ... [2021-11-19 14:21:20,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e91fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:20, skipping insertion in model container [2021-11-19 14:21:20,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:21:14" (2/3) ... [2021-11-19 14:21:20,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e91fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:20, skipping insertion in model container [2021-11-19 14:21:20,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:20" (3/3) ... [2021-11-19 14:21:20,036 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness.i [2021-11-19 14:21:20,042 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:21:20,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:21:20,111 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:21:20,122 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 14:21:20,122 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:21:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 124 states have internal predecessors, (153), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-19 14:21:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-19 14:21:20,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:20,159 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:20,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:20,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:20,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2080692148, now seen corresponding path program 1 times [2021-11-19 14:21:20,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:20,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463634937] [2021-11-19 14:21:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:20,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:20,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:20,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:20,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:21:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:21,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:21:21,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-19 14:21:21,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-19 14:21:21,959 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:21,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463634937] [2021-11-19 14:21:21,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463634937] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:21:21,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:21:21,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:21:21,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854652855] [2021-11-19 14:21:21,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:21,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:21:21,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:21:21,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:21:21,999 INFO L87 Difference]: Start difference. First operand has 192 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 124 states have internal predecessors, (153), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:21:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:22,050 INFO L93 Difference]: Finished difference Result 373 states and 526 transitions. [2021-11-19 14:21:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:21:22,053 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 118 [2021-11-19 14:21:22,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:22,065 INFO L225 Difference]: With dead ends: 373 [2021-11-19 14:21:22,065 INFO L226 Difference]: Without dead ends: 187 [2021-11-19 14:21:22,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 234 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 14:21:22,075 INFO L933 BasicCegarLoop]: 248 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, 248 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 14:21:22,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:22,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-19 14:21:22,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-11-19 14:21:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 120 states have internal predecessors, (144), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-11-19 14:21:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 243 transitions. [2021-11-19 14:21:22,135 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 243 transitions. Word has length 118 [2021-11-19 14:21:22,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:22,137 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 243 transitions. [2021-11-19 14:21:22,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:21:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 243 transitions. [2021-11-19 14:21:22,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-19 14:21:22,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:22,142 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:22,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:22,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:22,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash 440490954, now seen corresponding path program 1 times [2021-11-19 14:21:22,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:22,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141174039] [2021-11-19 14:21:22,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:22,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:22,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:22,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:22,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:21:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:23,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:23,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-19 14:21:23,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-19 14:21:24,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:24,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141174039] [2021-11-19 14:21:24,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141174039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:24,087 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:24,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-19 14:21:24,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749860943] [2021-11-19 14:21:24,087 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:24,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:21:24,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:24,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:21:24,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:24,095 INFO L87 Difference]: Start difference. First operand 187 states and 243 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 14:21:24,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:24,460 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2021-11-19 14:21:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:21:24,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 118 [2021-11-19 14:21:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:24,472 INFO L225 Difference]: With dead ends: 337 [2021-11-19 14:21:24,472 INFO L226 Difference]: Without dead ends: 187 [2021-11-19 14:21:24,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:21:24,476 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 43 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:24,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 1063 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:21:24,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-19 14:21:24,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-11-19 14:21:24,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 119 states have (on average 1.2016806722689075) internal successors, (143), 120 states have internal predecessors, (143), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-11-19 14:21:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 242 transitions. [2021-11-19 14:21:24,513 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 242 transitions. Word has length 118 [2021-11-19 14:21:24,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:24,513 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 242 transitions. [2021-11-19 14:21:24,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 14:21:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 242 transitions. [2021-11-19 14:21:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:21:24,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:24,518 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:24,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:24,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:24,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:24,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:24,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1705196580, now seen corresponding path program 1 times [2021-11-19 14:21:24,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:24,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987103009] [2021-11-19 14:21:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:24,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:24,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:24,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:24,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:21:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:25,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:21:25,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-19 14:21:25,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-19 14:21:26,545 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:26,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987103009] [2021-11-19 14:21:26,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987103009] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:21:26,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:21:26,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-19 14:21:26,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867660027] [2021-11-19 14:21:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:26,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:21:26,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:21:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:21:26,548 INFO L87 Difference]: Start difference. First operand 187 states and 242 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:21:27,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:27,208 INFO L93 Difference]: Finished difference Result 356 states and 472 transitions. [2021-11-19 14:21:27,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:21:27,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 126 [2021-11-19 14:21:27,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:27,225 INFO L225 Difference]: With dead ends: 356 [2021-11-19 14:21:27,225 INFO L226 Difference]: Without dead ends: 189 [2021-11-19 14:21:27,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:21:27,228 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 77 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:27,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1300 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:21:27,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-19 14:21:27,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-11-19 14:21:27,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 120 states have (on average 1.2) internal successors, (144), 122 states have internal predecessors, (144), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2021-11-19 14:21:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 249 transitions. [2021-11-19 14:21:27,260 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 249 transitions. Word has length 126 [2021-11-19 14:21:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:27,263 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 249 transitions. [2021-11-19 14:21:27,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:21:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 249 transitions. [2021-11-19 14:21:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-19 14:21:27,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:27,269 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:27,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:27,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:27,470 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:27,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:27,470 INFO L85 PathProgramCache]: Analyzing trace with hash -371731420, now seen corresponding path program 1 times [2021-11-19 14:21:27,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:27,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646995805] [2021-11-19 14:21:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:27,474 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:27,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:27,475 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:27,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:21:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:28,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:21:28,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-19 14:21:28,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-19 14:21:29,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:29,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646995805] [2021-11-19 14:21:29,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646995805] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:21:29,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:21:29,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-19 14:21:29,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812028196] [2021-11-19 14:21:29,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:29,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:21:29,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:29,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:21:29,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:21:29,198 INFO L87 Difference]: Start difference. First operand 189 states and 249 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:21:29,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:29,318 INFO L93 Difference]: Finished difference Result 344 states and 467 transitions. [2021-11-19 14:21:29,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:21:29,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2021-11-19 14:21:29,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:29,324 INFO L225 Difference]: With dead ends: 344 [2021-11-19 14:21:29,324 INFO L226 Difference]: Without dead ends: 194 [2021-11-19 14:21:29,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:29,328 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 10 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:29,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 713 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:21:29,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-19 14:21:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-11-19 14:21:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 124 states have internal predecessors, (146), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2021-11-19 14:21:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 251 transitions. [2021-11-19 14:21:29,356 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 251 transitions. Word has length 141 [2021-11-19 14:21:29,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:29,357 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 251 transitions. [2021-11-19 14:21:29,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:21:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 251 transitions. [2021-11-19 14:21:29,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-19 14:21:29,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:29,360 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:29,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:29,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:29,584 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:29,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash 120894754, now seen corresponding path program 1 times [2021-11-19 14:21:29,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:29,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267309556] [2021-11-19 14:21:29,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:29,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:29,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:29,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:29,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:21:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:30,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:21:30,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-19 14:21:31,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 14:21:31,566 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:31,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267309556] [2021-11-19 14:21:31,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267309556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:31,566 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:31,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:21:31,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556749551] [2021-11-19 14:21:31,567 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:31,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:21:31,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:31,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:21:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:21:31,569 INFO L87 Difference]: Start difference. First operand 191 states and 251 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-19 14:21:32,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:32,057 INFO L93 Difference]: Finished difference Result 346 states and 457 transitions. [2021-11-19 14:21:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:21:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) Word has length 141 [2021-11-19 14:21:32,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:32,060 INFO L225 Difference]: With dead ends: 346 [2021-11-19 14:21:32,061 INFO L226 Difference]: Without dead ends: 191 [2021-11-19 14:21:32,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:21:32,063 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 65 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:32,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 1248 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:21:32,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-19 14:21:32,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-11-19 14:21:32,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 124 states have internal predecessors, (145), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2021-11-19 14:21:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 250 transitions. [2021-11-19 14:21:32,078 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 250 transitions. Word has length 141 [2021-11-19 14:21:32,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:32,078 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 250 transitions. [2021-11-19 14:21:32,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-19 14:21:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 250 transitions. [2021-11-19 14:21:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-19 14:21:32,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:32,082 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:32,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:32,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:32,303 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:32,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1915037087, now seen corresponding path program 1 times [2021-11-19 14:21:32,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:32,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596109019] [2021-11-19 14:21:32,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:32,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:32,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:32,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:32,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:21:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:33,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1577 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:21:33,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 14:21:33,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:34,638 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-19 14:21:34,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:34,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596109019] [2021-11-19 14:21:34,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596109019] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:21:34,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:21:34,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2021-11-19 14:21:34,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791927267] [2021-11-19 14:21:34,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:34,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:21:34,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:34,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:21:34,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:21:34,640 INFO L87 Difference]: Start difference. First operand 191 states and 250 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-19 14:21:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:35,453 INFO L93 Difference]: Finished difference Result 359 states and 474 transitions. [2021-11-19 14:21:35,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:21:35,461 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 157 [2021-11-19 14:21:35,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:35,464 INFO L225 Difference]: With dead ends: 359 [2021-11-19 14:21:35,464 INFO L226 Difference]: Without dead ends: 191 [2021-11-19 14:21:35,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:21:35,466 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 116 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:35,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 1385 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:21:35,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-19 14:21:35,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-11-19 14:21:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 124 states have internal predecessors, (145), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2021-11-19 14:21:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 249 transitions. [2021-11-19 14:21:35,480 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 249 transitions. Word has length 157 [2021-11-19 14:21:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:35,480 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 249 transitions. [2021-11-19 14:21:35,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2021-11-19 14:21:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 249 transitions. [2021-11-19 14:21:35,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-19 14:21:35,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:35,484 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:35,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:35,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:35,706 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:35,706 INFO L85 PathProgramCache]: Analyzing trace with hash 725110269, now seen corresponding path program 2 times [2021-11-19 14:21:35,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:35,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400348802] [2021-11-19 14:21:35,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:21:35,708 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:35,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:35,709 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:35,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:21:42,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:21:42,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:21:42,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:21:42,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 14:21:43,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-19 14:21:44,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:44,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400348802] [2021-11-19 14:21:44,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400348802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:44,713 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:44,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:21:44,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211475164] [2021-11-19 14:21:44,714 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:44,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:21:44,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:44,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:21:44,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:21:44,717 INFO L87 Difference]: Start difference. First operand 191 states and 249 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:21:46,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:48,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:50,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:52,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:56,450 INFO L93 Difference]: Finished difference Result 362 states and 477 transitions. [2021-11-19 14:21:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:21:56,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 172 [2021-11-19 14:21:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:56,456 INFO L225 Difference]: With dead ends: 362 [2021-11-19 14:21:56,456 INFO L226 Difference]: Without dead ends: 210 [2021-11-19 14:21:56,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:21:56,458 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 26 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:56,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1280 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 184 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2021-11-19 14:21:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-19 14:21:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2021-11-19 14:21:56,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 124 states have (on average 1.185483870967742) internal successors, (147), 126 states have internal predecessors, (147), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2021-11-19 14:21:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 251 transitions. [2021-11-19 14:21:56,471 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 251 transitions. Word has length 172 [2021-11-19 14:21:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:56,472 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 251 transitions. [2021-11-19 14:21:56,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:21:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 251 transitions. [2021-11-19 14:21:56,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-19 14:21:56,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:56,475 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:56,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:56,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:56,692 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:21:56,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:56,692 INFO L85 PathProgramCache]: Analyzing trace with hash -491043457, now seen corresponding path program 1 times [2021-11-19 14:21:56,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:56,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521823879] [2021-11-19 14:21:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:56,694 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:56,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:56,695 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:56,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:21:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:57,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:21:57,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 14:21:58,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:59,667 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-19 14:21:59,667 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:59,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521823879] [2021-11-19 14:21:59,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521823879] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:59,668 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:59,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-19 14:21:59,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787919400] [2021-11-19 14:21:59,668 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:59,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:21:59,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:59,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:21:59,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:21:59,670 INFO L87 Difference]: Start difference. First operand 193 states and 251 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:22:01,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:22:03,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:22:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:06,969 INFO L93 Difference]: Finished difference Result 365 states and 479 transitions. [2021-11-19 14:22:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:22:06,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 172 [2021-11-19 14:22:06,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:06,975 INFO L225 Difference]: With dead ends: 365 [2021-11-19 14:22:06,976 INFO L226 Difference]: Without dead ends: 211 [2021-11-19 14:22:06,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:22:06,977 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 23 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:06,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 1503 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 204 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2021-11-19 14:22:06,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-19 14:22:07,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 195. [2021-11-19 14:22:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 126 states have (on average 1.1825396825396826) internal successors, (149), 128 states have internal predecessors, (149), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2021-11-19 14:22:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2021-11-19 14:22:07,013 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 172 [2021-11-19 14:22:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:07,014 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2021-11-19 14:22:07,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:22:07,015 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2021-11-19 14:22:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-19 14:22:07,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:07,029 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:07,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 14:22:07,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:07,244 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:22:07,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:07,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2117744001, now seen corresponding path program 1 times [2021-11-19 14:22:07,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:07,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933543608] [2021-11-19 14:22:07,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:07,247 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:07,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:07,247 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:07,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12ffe638-7f47-4878-bcdc-22ec9e8e7e7d/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:22:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:08,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-19 14:22:08,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:15,406 INFO L354 Elim1Store]: treesize reduction 560, result has 54.6 percent of original size [2021-11-19 14:22:15,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 625 treesize of output 913 [2021-11-19 14:22:15,489 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-19 14:22:15,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1729 treesize of output 1709 [2021-11-19 14:22:15,546 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-19 14:22:15,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1703 treesize of output 1683 [2021-11-19 14:23:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-19 14:23:03,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:37,184 INFO L354 Elim1Store]: treesize reduction 1632, result has 0.1 percent of original size [2021-11-19 14:25:37,188 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 853 treesize of output 1 [2021-11-19 14:26:05,546 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-19 14:26:05,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 788 treesize of output 788 [2021-11-19 14:26:05,824 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-19 14:26:05,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 784 treesize of output 784 [2021-11-19 14:27:52,806 WARN L227 SmtUtils]: Spent 1.67m on a formula simplification. DAG size of input: 1178 DAG size of output: 750 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:27:52,814 INFO L354 Elim1Store]: treesize reduction 1688, result has 56.6 percent of original size [2021-11-19 14:27:52,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 733 treesize of output 2405