./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF --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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:55:50,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:55:50,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:55:50,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:55:50,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:55:50,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:55:50,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:55:50,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:55:50,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:55:50,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:55:50,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:55:50,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:55:50,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:55:50,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:55:50,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:55:50,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:55:50,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:55:50,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:55:50,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:55:50,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:55:50,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:55:50,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:55:50,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:55:50,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:55:50,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:55:50,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:55:50,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:55:50,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:55:50,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:55:50,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:55:50,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:55:50,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:55:50,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:55:50,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:55:50,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:55:50,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:55:50,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:55:50,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:55:50,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:55:50,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:55:50,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:55:50,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:55:50,565 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:55:50,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:55:50,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:55:50,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:55:50,567 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:55:50,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:55:50,568 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:55:50,568 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:55:50,569 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:55:50,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:55:50,569 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:55:50,570 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:55:50,570 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:55:50,570 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:55:50,571 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:55:50,571 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:55:50,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:55:50,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:55:50,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:55:50,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:55:50,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:55:50,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:55:50,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:55:50,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:55:50,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:55:50,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:55:50,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:55:50,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:55:50,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:50,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:55:50,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:55:50,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:55:50,577 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:55:50,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:55:50,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:55:50,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:55:50,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:55:50,578 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_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2021-11-12 22:55:50,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:55:50,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:55:50,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:55:50,930 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:55:50,931 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:55:50,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-12 22:55:51,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/7764dc560/85e18281e243473ba3c4f6e958645dae/FLAG71bc18878 [2021-11-12 22:55:52,107 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:55:52,109 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-12 22:55:52,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/7764dc560/85e18281e243473ba3c4f6e958645dae/FLAG71bc18878 [2021-11-12 22:55:52,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/7764dc560/85e18281e243473ba3c4f6e958645dae [2021-11-12 22:55:52,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:55:52,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:55:52,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:52,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:55:52,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:55:52,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:52" (1/1) ... [2021-11-12 22:55:52,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6559e8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:52, skipping insertion in model container [2021-11-12 22:55:52,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:52" (1/1) ... [2021-11-12 22:55:52,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:55:52,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:55:53,036 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-12 22:55:53,044 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-12 22:55:53,071 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:55:53,077 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:55:54,048 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:55:54,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:55:54,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:55:54,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:55:54,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:55:54,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:55:54,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:55:54,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:55:54,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:55:54,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:55:54,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:55:54,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:54,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:55:55,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:55,071 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) [2021-11-12 22:55:55,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@454b9729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55, skipping insertion in model container [2021-11-12 22:55:55,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:55,073 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:55:55,076 INFO L158 Benchmark]: Toolchain (without parser) took 2573.86ms. Allocated memory is still 111.1MB. Free memory was 72.4MB in the beginning and 72.8MB in the end (delta: -412.0kB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-11-12 22:55:55,077 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 40.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:55:55,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2550.19ms. Allocated memory is still 111.1MB. Free memory was 72.4MB in the beginning and 72.8MB in the end (delta: -412.0kB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-11-12 22:55:55,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 40.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2550.19ms. Allocated memory is still 111.1MB. Free memory was 72.4MB in the beginning and 72.8MB in the end (delta: -412.0kB). Peak memory consumption was 24.3MB. 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_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF --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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:55:57,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:55:57,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:55:57,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:55:57,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:55:57,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:55:57,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:55:57,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:55:57,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:55:57,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:55:57,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:55:57,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:55:57,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:55:57,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:55:57,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:55:57,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:55:57,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:55:57,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:55:57,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:55:57,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:55:57,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:55:57,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:55:57,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:55:57,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:55:57,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:55:57,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:55:57,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:55:57,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:55:57,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:55:57,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:55:57,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:55:57,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:55:57,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:55:57,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:55:57,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:55:57,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:55:57,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:55:57,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:55:57,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:55:57,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:55:57,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:55:57,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:55:57,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:55:57,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:55:57,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:55:57,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:55:57,942 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:55:57,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:55:57,942 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:55:57,942 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:55:57,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:55:57,943 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:55:57,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:55:57,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:55:57,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:55:57,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:55:57,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:55:57,947 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:55:57,948 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:55:57,948 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:55:57,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:55:57,948 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:55:57,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:55:57,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:55:57,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:55:57,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:55:57,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:57,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:55:57,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:55:57,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:55:57,951 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:55:57,951 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:57,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:55:57,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:55:57,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:55:57,952 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_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2021-11-12 22:55:58,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:55:58,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:55:58,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:55:58,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:55:58,495 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:55:58,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-12 22:55:58,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/2d93a7418/6261447694544eddbc18af621403f681/FLAG802926866 [2021-11-12 22:55:59,590 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:55:59,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-12 22:55:59,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/2d93a7418/6261447694544eddbc18af621403f681/FLAG802926866 [2021-11-12 22:56:00,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/data/2d93a7418/6261447694544eddbc18af621403f681 [2021-11-12 22:56:00,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:56:00,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:56:00,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:00,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:56:00,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:56:00,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:00" (1/1) ... [2021-11-12 22:56:00,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4177a11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:00, skipping insertion in model container [2021-11-12 22:56:00,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:00" (1/1) ... [2021-11-12 22:56:00,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:56:00,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:00,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-12 22:56:00,596 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-12 22:56:00,630 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:56:00,639 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:56:01,625 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:56:01,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:01,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,239 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:56:02,241 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:56:02,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:56:02,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:56:02,246 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:56:02,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:56:02,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:56:02,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:56:02,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:56:02,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:56:02,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:02,577 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:56:02,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:02,675 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-12 22:56:02,675 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-12 22:56:02,677 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:56:02,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:56:02,742 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:56:02,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,785 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,786 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,864 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:56:02,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:56:02,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:56:02,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:56:02,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:56:02,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:56:02,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:56:02,876 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:56:02,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:56:02,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:56:02,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:02,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:03,058 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:56:03,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-12 22:56:03,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-12 22:56:03,094 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:56:03,095 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:56:03,148 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:56:03,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,178 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:56:03,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:56:03,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:56:03,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:56:03,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:56:03,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:56:03,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:56:03,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:56:03,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:56:03,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:56:03,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:56:03,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:03,969 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:56:03,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03 WrapperNode [2021-11-12 22:56:03,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:03,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:56:03,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:56:03,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:56:03,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:56:04,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:56:04,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:56:04,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:56:04,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:56:04,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:56:04,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:56:04,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:56:04,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (1/1) ... [2021-11-12 22:56:04,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:04,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:56:04,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:56:04,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:56:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-12 22:56:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-12 22:56:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:56:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-12 22:56:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-12 22:56:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-12 22:56:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-12 22:56:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:56:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:56:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:56:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:56:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:56:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 22:56:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 22:56:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:56:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:56:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:56:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-12 22:56:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-12 22:56:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:56:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:56:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:56:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:56:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:56:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:56:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 22:56:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 22:56:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:56:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 22:56:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 22:56:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-12 22:56:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-12 22:56:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:56:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:56:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:56:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 22:56:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:56:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:56:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:56:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:56:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 22:56:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 22:56:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 22:56:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 22:56:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2021-11-12 22:56:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2021-11-12 22:56:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-12 22:56:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-12 22:56:20,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:56:20,206 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:56:20,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:20 BoogieIcfgContainer [2021-11-12 22:56:20,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:56:20,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:56:20,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:56:20,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:56:20,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:56:00" (1/3) ... [2021-11-12 22:56:20,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffc0c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:20, skipping insertion in model container [2021-11-12 22:56:20,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:03" (2/3) ... [2021-11-12 22:56:20,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffc0c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:20, skipping insertion in model container [2021-11-12 22:56:20,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:20" (3/3) ... [2021-11-12 22:56:20,221 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2021-11-12 22:56:20,228 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:56:20,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:56:20,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:56:20,322 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 [2021-11-12 22:56:20,322 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:56:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-12 22:56:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 22:56:20,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:20,380 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] [2021-11-12 22:56:20,381 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash -626335346, now seen corresponding path program 1 times [2021-11-12 22:56:20,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:20,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187519843] [2021-11-12 22:56:20,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:20,421 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:20,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:20,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:20,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:56:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:25,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:56:25,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-12 22:56:26,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-12 22:56:26,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:26,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187519843] [2021-11-12 22:56:26,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187519843] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:26,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:26,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 22:56:26,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777018399] [2021-11-12 22:56:26,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:26,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:56:26,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:26,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:56:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:56:26,591 INFO L87 Difference]: Start difference. First operand has 170 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 22:56:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:26,650 INFO L93 Difference]: Finished difference Result 329 states and 449 transitions. [2021-11-12 22:56:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:56:26,652 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 110 [2021-11-12 22:56:26,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:26,666 INFO L225 Difference]: With dead ends: 329 [2021-11-12 22:56:26,667 INFO L226 Difference]: Without dead ends: 165 [2021-11-12 22:56:26,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:56:26,678 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:26,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 3.37ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:56:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-12 22:56:26,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-12 22:56:26,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 108 states have (on average 1.2037037037037037) internal successors, (130), 109 states have internal predecessors, (130), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-12 22:56:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 209 transitions. [2021-11-12 22:56:26,749 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 209 transitions. Word has length 110 [2021-11-12 22:56:26,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:26,751 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 209 transitions. [2021-11-12 22:56:26,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 22:56:26,751 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 209 transitions. [2021-11-12 22:56:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 22:56:26,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:26,757 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] [2021-11-12 22:56:26,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:26,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:26,982 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:26,983 INFO L85 PathProgramCache]: Analyzing trace with hash 726994572, now seen corresponding path program 1 times [2021-11-12 22:56:26,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:26,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661358980] [2021-11-12 22:56:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:26,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:26,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:26,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:27,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:56:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:32,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:32,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-12 22:56:33,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-12 22:56:33,671 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:33,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661358980] [2021-11-12 22:56:33,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661358980] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:33,671 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:33,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-12 22:56:33,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308434992] [2021-11-12 22:56:33,672 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:33,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:56:33,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:33,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:56:33,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:56:33,675 INFO L87 Difference]: Start difference. First operand 165 states and 209 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-12 22:56:34,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:34,110 INFO L93 Difference]: Finished difference Result 288 states and 367 transitions. [2021-11-12 22:56:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:56:34,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 110 [2021-11-12 22:56:34,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:34,119 INFO L225 Difference]: With dead ends: 288 [2021-11-12 22:56:34,119 INFO L226 Difference]: Without dead ends: 165 [2021-11-12 22:56:34,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:34,123 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 36 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 291.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.04ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 356.85ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:34,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 901 Invalid, 51 Unknown, 0 Unchecked, 11.04ms Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 356.85ms Time] [2021-11-12 22:56:34,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-12 22:56:34,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-12 22:56:34,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 108 states have (on average 1.1944444444444444) internal successors, (129), 109 states have internal predecessors, (129), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-12 22:56:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 208 transitions. [2021-11-12 22:56:34,151 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 208 transitions. Word has length 110 [2021-11-12 22:56:34,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:34,152 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 208 transitions. [2021-11-12 22:56:34,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-12 22:56:34,153 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 208 transitions. [2021-11-12 22:56:34,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-12 22:56:34,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:34,157 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] [2021-11-12 22:56:34,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 22:56:34,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:34,382 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:34,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash 691144694, now seen corresponding path program 1 times [2021-11-12 22:56:34,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:34,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825630572] [2021-11-12 22:56:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:34,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:34,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:34,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:34,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:56:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:39,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:56:39,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-12 22:56:39,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-12 22:56:40,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:40,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825630572] [2021-11-12 22:56:40,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825630572] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:40,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:40,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-12 22:56:40,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294242123] [2021-11-12 22:56:40,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:40,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:40,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:40,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:40,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:56:40,868 INFO L87 Difference]: Start difference. First operand 165 states and 208 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 22:56:41,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:41,781 INFO L93 Difference]: Finished difference Result 307 states and 396 transitions. [2021-11-12 22:56:41,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:56:41,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 118 [2021-11-12 22:56:41,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:41,791 INFO L225 Difference]: With dead ends: 307 [2021-11-12 22:56:41,791 INFO L226 Difference]: Without dead ends: 167 [2021-11-12 22:56:41,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:56:41,794 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 86 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 682.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.44ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 807.40ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:41,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 1056 Invalid, 131 Unknown, 0 Unchecked, 9.44ms Time], IncrementalHoareTripleChecker [7 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 807.40ms Time] [2021-11-12 22:56:41,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-12 22:56:41,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2021-11-12 22:56:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.1926605504587156) internal successors, (130), 111 states have internal predecessors, (130), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2021-11-12 22:56:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 212 transitions. [2021-11-12 22:56:41,823 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 212 transitions. Word has length 118 [2021-11-12 22:56:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:41,824 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 212 transitions. [2021-11-12 22:56:41,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-12 22:56:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 212 transitions. [2021-11-12 22:56:41,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 22:56:41,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:41,829 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] [2021-11-12 22:56:41,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 22:56:42,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:42,054 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:42,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:42,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1403025034, now seen corresponding path program 1 times [2021-11-12 22:56:42,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:42,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000937102] [2021-11-12 22:56:42,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:42,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:42,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:42,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:42,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:56:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:47,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:56:47,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:48,030 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-12 22:56:48,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-12 22:56:48,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:48,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000937102] [2021-11-12 22:56:48,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000937102] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:56:48,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:56:48,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-12 22:56:48,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483245548] [2021-11-12 22:56:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:48,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:48,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:48,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:48,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:48,502 INFO L87 Difference]: Start difference. First operand 167 states and 212 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 22:56:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:48,653 INFO L93 Difference]: Finished difference Result 295 states and 383 transitions. [2021-11-12 22:56:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:56:48,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 133 [2021-11-12 22:56:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:48,659 INFO L225 Difference]: With dead ends: 295 [2021-11-12 22:56:48,659 INFO L226 Difference]: Without dead ends: 172 [2021-11-12 22:56:48,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:56:48,661 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 10 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.03ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:48,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 13 Unknown, 0 Unchecked, 3.03ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 112.07ms Time] [2021-11-12 22:56:48,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-11-12 22:56:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-11-12 22:56:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 113 states have internal predecessors, (132), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2021-11-12 22:56:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2021-11-12 22:56:48,684 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 133 [2021-11-12 22:56:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:48,685 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2021-11-12 22:56:48,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 22:56:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2021-11-12 22:56:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 22:56:48,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:48,689 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] [2021-11-12 22:56:48,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:48,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:48,914 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:48,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:48,915 INFO L85 PathProgramCache]: Analyzing trace with hash -558549624, now seen corresponding path program 1 times [2021-11-12 22:56:48,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:48,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521957607] [2021-11-12 22:56:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:48,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:48,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:48,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:48,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:56:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:54,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:56:54,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-12 22:56:54,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 22:56:55,665 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:55,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521957607] [2021-11-12 22:56:55,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521957607] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:55,665 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:55,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-12 22:56:55,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46534741] [2021-11-12 22:56:55,666 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:55,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:56:55,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:55,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:56:55,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:56:55,668 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-12 22:56:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:56,244 INFO L93 Difference]: Finished difference Result 297 states and 378 transitions. [2021-11-12 22:56:56,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:56:56,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 133 [2021-11-12 22:56:56,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:56,254 INFO L225 Difference]: With dead ends: 297 [2021-11-12 22:56:56,254 INFO L226 Difference]: Without dead ends: 169 [2021-11-12 22:56:56,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:56:56,256 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 105 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 433.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.11ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 506.18ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:56,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 709 Invalid, 67 Unknown, 0 Unchecked, 4.11ms Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 506.18ms Time] [2021-11-12 22:56:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-12 22:56:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-12 22:56:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 113 states have internal predecessors, (131), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2021-11-12 22:56:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 213 transitions. [2021-11-12 22:56:56,289 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 213 transitions. Word has length 133 [2021-11-12 22:56:56,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:56,290 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 213 transitions. [2021-11-12 22:56:56,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-12 22:56:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 213 transitions. [2021-11-12 22:56:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-12 22:56:56,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:56,299 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] [2021-11-12 22:56:56,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:56,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,506 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:56:56,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1813374097, now seen corresponding path program 1 times [2021-11-12 22:56:56,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:56,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242989533] [2021-11-12 22:56:56,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:56,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:56,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:56,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:57:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:01,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:57:01,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 22:57:02,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-12 22:57:03,581 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:03,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242989533] [2021-11-12 22:57:03,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242989533] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:57:03,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:57:03,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2021-11-12 22:57:03,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074915329] [2021-11-12 22:57:03,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:03,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:57:03,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:03,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:57:03,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:57:03,585 INFO L87 Difference]: Start difference. First operand 169 states and 213 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2021-11-12 22:57:04,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:04,795 INFO L93 Difference]: Finished difference Result 310 states and 395 transitions. [2021-11-12 22:57:04,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:57:04,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 149 [2021-11-12 22:57:04,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:04,802 INFO L225 Difference]: With dead ends: 310 [2021-11-12 22:57:04,802 INFO L226 Difference]: Without dead ends: 169 [2021-11-12 22:57:04,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:57:04,805 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 109 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 938.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.55ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1073.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:04,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1179 Invalid, 182 Unknown, 0 Unchecked, 6.55ms Time], IncrementalHoareTripleChecker [10 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 1073.69ms Time] [2021-11-12 22:57:04,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-12 22:57:04,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-12 22:57:04,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 113 states have internal predecessors, (131), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (41), 39 states have call predecessors, (41), 39 states have call successors, (41) [2021-11-12 22:57:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 212 transitions. [2021-11-12 22:57:04,822 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 212 transitions. Word has length 149 [2021-11-12 22:57:04,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:04,823 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 212 transitions. [2021-11-12 22:57:04,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2021-11-12 22:57:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 212 transitions. [2021-11-12 22:57:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-12 22:57:04,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:04,827 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] [2021-11-12 22:57:04,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:05,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:05,050 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:57:05,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash 770964543, now seen corresponding path program 2 times [2021-11-12 22:57:05,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:05,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697138378] [2021-11-12 22:57:05,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:57:05,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:05,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:05,056 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:05,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eca03e6-e18e-4857-ac8f-1c7e5df7ca39/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process