./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_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_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/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_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/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_59d13889-c230-43b7-ad1f-2f2ec018c25f/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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:30:09,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:30:09,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:30:09,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:30:09,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:30:09,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:30:09,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:30:09,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:30:09,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:30:09,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:30:09,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:30:09,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:30:09,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:30:09,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:30:09,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:30:09,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:30:09,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:30:09,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:30:09,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:30:09,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:30:09,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:30:09,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:30:09,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:30:09,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:30:09,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:30:09,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:30:09,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:30:09,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:30:09,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:30:09,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:30:09,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:30:09,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:30:09,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:30:09,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:30:09,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:30:09,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:30:09,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:30:09,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:30:09,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:30:09,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:30:09,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:30:09,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:30:09,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:30:09,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:30:09,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:30:09,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:30:09,266 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:30:09,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:30:09,266 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:30:09,267 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:30:09,267 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:30:09,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:30:09,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:30:09,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:30:09,267 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:30:09,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:30:09,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:30:09,268 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:30:09,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:30:09,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:30:09,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:30:09,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:30:09,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:30:09,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:30:09,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:30:09,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:30:09,270 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:30:09,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:30:09,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:30:09,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:30:09,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:09,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:30:09,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:30:09,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:30:09,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:30:09,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:30:09,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:30:09,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:30:09,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:30:09,273 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-13 01:30:09,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:30:09,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:30:09,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:30:09,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:30:09,589 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:30:09,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-13 01:30:09,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/a7c939eff/fbcf65e330544150b7480a24e4d7ea81/FLAG63425548b [2021-11-13 01:30:10,395 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:30:10,396 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-13 01:30:10,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/a7c939eff/fbcf65e330544150b7480a24e4d7ea81/FLAG63425548b [2021-11-13 01:30:10,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/a7c939eff/fbcf65e330544150b7480a24e4d7ea81 [2021-11-13 01:30:10,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:30:10,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:30:10,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:10,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:30:10,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:30:10,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:10" (1/1) ... [2021-11-13 01:30:10,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdd3a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:10, skipping insertion in model container [2021-11-13 01:30:10,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:10" (1/1) ... [2021-11-13 01:30:10,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:30:10,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:10,967 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-13 01:30:10,975 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-13 01:30:10,999 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:30:11,006 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:30:11,829 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:30:11,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:11,941 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:12,231 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:30:12,232 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:30:12,233 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:30:12,234 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:30:12,236 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:30:12,237 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:30:12,237 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:30:12,238 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:30:12,239 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:30:12,240 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:30:12,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:12,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:12,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:12,534 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) [2021-11-13 01:30:12,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76a766a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:12, skipping insertion in model container [2021-11-13 01:30:12,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:12,537 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:30:12,540 INFO L158 Benchmark]: Toolchain (without parser) took 2032.91ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 80.0MB in the beginning and 116.7MB in the end (delta: -36.7MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2021-11-13 01:30:12,541 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:30:12,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2028.14ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 79.8MB in the beginning and 116.7MB in the end (delta: -36.9MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2021-11-13 01:30:12,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2028.14ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 79.8MB in the beginning and 116.7MB in the end (delta: -36.9MB). Peak memory consumption was 25.9MB. 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/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_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/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_59d13889-c230-43b7-ad1f-2f2ec018c25f/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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:30:14,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:30:14,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:30:14,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:30:14,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:30:14,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:30:14,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:30:14,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:30:14,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:30:14,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:30:14,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:30:14,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:30:14,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:30:14,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:30:14,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:30:14,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:30:14,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:30:14,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:30:14,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:30:14,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:30:14,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:30:14,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:30:14,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:30:14,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:30:14,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:30:14,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:30:14,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:30:14,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:30:14,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:30:14,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:30:14,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:30:14,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:30:14,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:30:14,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:30:14,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:30:14,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:30:14,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:30:14,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:30:14,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:30:14,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:30:14,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:30:14,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:30:14,929 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:30:14,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:30:14,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:30:14,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:30:14,932 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:30:14,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:30:14,932 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:30:14,932 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:30:14,933 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:30:14,933 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:30:14,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:30:14,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:30:14,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:30:14,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:30:14,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:30:14,936 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:30:14,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:30:14,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:30:14,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:30:14,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:30:14,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:30:14,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:30:14,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:30:14,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:30:14,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:14,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:30:14,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:30:14,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:30:14,940 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:30:14,940 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:30:14,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:30:14,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:30:14,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:30:14,941 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-13 01:30:15,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:30:15,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:30:15,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:30:15,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:30:15,392 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:30:15,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-13 01:30:15,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/8cdbf301b/1d660ea2bae344109ff3888a5f81f060/FLAGd0be31ebd [2021-11-13 01:30:16,315 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:30:16,316 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-13 01:30:16,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/8cdbf301b/1d660ea2bae344109ff3888a5f81f060/FLAGd0be31ebd [2021-11-13 01:30:16,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/data/8cdbf301b/1d660ea2bae344109ff3888a5f81f060 [2021-11-13 01:30:16,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:30:16,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:30:16,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:16,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:30:16,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:30:16,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:16" (1/1) ... [2021-11-13 01:30:16,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448e622d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:16, skipping insertion in model container [2021-11-13 01:30:16,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:16" (1/1) ... [2021-11-13 01:30:16,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:30:16,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:17,227 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-13 01:30:17,237 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-13 01:30:17,265 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:30:17,273 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:30:18,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:30:18,238 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,238 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:30:18,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:30:18,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:30:18,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:30:18,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:30:18,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:30:18,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:30:18,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:30:18,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:30:18,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:30:18,786 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:18,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:18,928 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:30:18,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:18,991 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-13 01:30:18,992 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-13 01:30:18,994 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:30:19,003 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:30:19,051 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:30:19,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:30:19,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:30:19,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:30:19,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:30:19,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:30:19,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:30:19,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:30:19,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:30:19,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:30:19,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:30:19,163 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,163 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:19,198 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:30:19,211 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-13 01:30:19,212 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_59d13889-c230-43b7-ad1f-2f2ec018c25f/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-13 01:30:19,213 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:30:19,214 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:30:19,243 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:30:19,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:30:19,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:30:19,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:30:19,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:30:19,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:30:19,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:30:19,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:30:19,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:30:19,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:30:19,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:30:19,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:30:19,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:19,670 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:30:19,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19 WrapperNode [2021-11-13 01:30:19,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:19,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:19,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:30:19,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:30:19,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:19,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:19,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:19,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:30:19,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:30:19,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:30:19,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:19,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:19,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:19,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:19,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:19,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:20,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:20,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:30:20,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:30:20,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:30:20,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:30:20,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (1/1) ... [2021-11-13 01:30:20,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:20,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:30:20,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:30:20,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:30:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-13 01:30:20,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-13 01:30:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:30:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-13 01:30:20,131 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-13 01:30:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:30:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:30:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:30:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 01:30:20,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 01:30:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 01:30:20,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 01:30:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:30:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:30:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:30:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:30:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 01:30:20,135 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 01:30:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:30:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:30:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-13 01:30:20,135 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-13 01:30:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-13 01:30:20,136 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-13 01:30:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 01:30:20,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 01:30:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:30:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-13 01:30:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:30:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:30:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:30:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:30:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-13 01:30:20,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-13 01:30:20,138 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 01:30:20,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 01:30:20,138 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-11-13 01:30:20,139 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-11-13 01:30:20,139 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-11-13 01:30:20,142 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-11-13 01:30:34,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:30:34,092 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 01:30:34,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:34 BoogieIcfgContainer [2021-11-13 01:30:34,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:30:34,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:30:34,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:30:34,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:30:34,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:30:16" (1/3) ... [2021-11-13 01:30:34,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729d5c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:34, skipping insertion in model container [2021-11-13 01:30:34,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:19" (2/3) ... [2021-11-13 01:30:34,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729d5c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:34, skipping insertion in model container [2021-11-13 01:30:34,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:34" (3/3) ... [2021-11-13 01:30:34,103 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-13 01:30:34,108 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:30:34,108 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:30:34,156 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:30:34,162 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 [2021-11-13 01:30:34,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:30:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-13 01:30:34,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-13 01:30:34,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:34,194 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 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] [2021-11-13 01:30:34,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:34,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:34,200 INFO L85 PathProgramCache]: Analyzing trace with hash 60239536, now seen corresponding path program 1 times [2021-11-13 01:30:34,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:34,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105117827] [2021-11-13 01:30:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:34,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:34,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:34,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:34,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:30:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:38,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:30:38,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-11-13 01:30:38,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-13 01:30:38,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:38,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105117827] [2021-11-13 01:30:38,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105117827] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:30:38,917 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:30:38,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:30:38,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686601807] [2021-11-13 01:30:38,920 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:38,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:30:38,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:38,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:30:38,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:30:38,955 INFO L87 Difference]: Start difference. First operand has 146 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-13 01:30:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:39,031 INFO L93 Difference]: Finished difference Result 289 states and 416 transitions. [2021-11-13 01:30:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:30:39,034 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 109 [2021-11-13 01:30:39,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:39,053 INFO L225 Difference]: With dead ends: 289 [2021-11-13 01:30:39,054 INFO L226 Difference]: Without dead ends: 140 [2021-11-13 01:30:39,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:30:39,069 INFO L933 BasicCegarLoop]: 189 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, 189 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:39,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 5.57ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:30:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-13 01:30:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-13 01:30:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 89 states have internal predecessors, (105), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-13 01:30:39,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 182 transitions. [2021-11-13 01:30:39,138 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 182 transitions. Word has length 109 [2021-11-13 01:30:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:39,138 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 182 transitions. [2021-11-13 01:30:39,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-13 01:30:39,139 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 182 transitions. [2021-11-13 01:30:39,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-13 01:30:39,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:39,143 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 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] [2021-11-13 01:30:39,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:39,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:39,344 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:39,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1229861763, now seen corresponding path program 1 times [2021-11-13 01:30:39,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:39,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252931304] [2021-11-13 01:30:39,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:39,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:39,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:39,358 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:39,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:30:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:43,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:30:43,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-13 01:30:43,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-13 01:30:44,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:44,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252931304] [2021-11-13 01:30:44,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252931304] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:30:44,614 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:30:44,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 01:30:44,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039829836] [2021-11-13 01:30:44,614 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:44,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:30:44,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:30:44,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:30:44,619 INFO L87 Difference]: Start difference. First operand 140 states and 182 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-13 01:30:44,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:44,834 INFO L93 Difference]: Finished difference Result 253 states and 325 transitions. [2021-11-13 01:30:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:30:44,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 126 [2021-11-13 01:30:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:44,839 INFO L225 Difference]: With dead ends: 253 [2021-11-13 01:30:44,839 INFO L226 Difference]: Without dead ends: 140 [2021-11-13 01:30:44,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:30:44,841 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 22 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.93ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:44,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 695 Invalid, 28 Unknown, 0 Unchecked, 10.33ms Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 104.93ms Time] [2021-11-13 01:30:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-13 01:30:44,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-13 01:30:44,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 89 states have internal predecessors, (104), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-13 01:30:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 181 transitions. [2021-11-13 01:30:44,859 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 181 transitions. Word has length 126 [2021-11-13 01:30:44,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:44,861 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 181 transitions. [2021-11-13 01:30:44,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-13 01:30:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 181 transitions. [2021-11-13 01:30:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-13 01:30:44,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:44,865 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 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] [2021-11-13 01:30:44,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:45,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:45,080 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1506740151, now seen corresponding path program 1 times [2021-11-13 01:30:45,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:45,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196632605] [2021-11-13 01:30:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:45,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:45,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:45,091 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:45,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:30:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:49,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:30:49,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-13 01:30:49,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-13 01:30:50,351 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:50,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196632605] [2021-11-13 01:30:50,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196632605] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:30:50,351 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:30:50,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-13 01:30:50,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605093135] [2021-11-13 01:30:50,352 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:50,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 01:30:50,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:50,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 01:30:50,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:30:50,354 INFO L87 Difference]: Start difference. First operand 140 states and 181 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-13 01:30:50,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:30:50,659 INFO L93 Difference]: Finished difference Result 255 states and 327 transitions. [2021-11-13 01:30:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:30:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 127 [2021-11-13 01:30:50,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:30:50,663 INFO L225 Difference]: With dead ends: 255 [2021-11-13 01:30:50,663 INFO L226 Difference]: Without dead ends: 142 [2021-11-13 01:30:50,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:30:50,665 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 21 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 147.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.18ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.46ms IncrementalHoareTripleChecker+Time [2021-11-13 01:30:50,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 1032 Invalid, 44 Unknown, 0 Unchecked, 8.18ms Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 163.46ms Time] [2021-11-13 01:30:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-13 01:30:50,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2021-11-13 01:30:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 90 states have internal predecessors, (105), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-13 01:30:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 182 transitions. [2021-11-13 01:30:50,681 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 182 transitions. Word has length 127 [2021-11-13 01:30:50,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:30:50,682 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 182 transitions. [2021-11-13 01:30:50,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-13 01:30:50,682 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 182 transitions. [2021-11-13 01:30:50,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-13 01:30:50,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:30:50,685 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 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] [2021-11-13 01:30:50,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:30:50,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:30:50,900 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:30:50,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:30:50,900 INFO L85 PathProgramCache]: Analyzing trace with hash 647415719, now seen corresponding path program 1 times [2021-11-13 01:30:50,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:30:50,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211688652] [2021-11-13 01:30:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:50,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:30:50,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:30:50,905 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:30:50,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:30:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:54,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:30:54,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 189 proven. 1 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-13 01:30:55,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-13 01:30:56,392 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:30:56,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211688652] [2021-11-13 01:30:56,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211688652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:30:56,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2033370145] [2021-11-13 01:30:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:30:56,393 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:30:56,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:30:56,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:30:56,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-13 01:30:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:30:57,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:30:57,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:30:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-11-13 01:30:58,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:30:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-11-13 01:30:59,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2033370145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:30:59,073 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:30:59,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [8, 8] total 19 [2021-11-13 01:30:59,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505758349] [2021-11-13 01:30:59,074 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:30:59,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:30:59,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:30:59,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:30:59,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-11-13 01:30:59,079 INFO L87 Difference]: Start difference. First operand 141 states and 182 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 01:31:01,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:31:02,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:31:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:03,419 INFO L93 Difference]: Finished difference Result 237 states and 303 transitions. [2021-11-13 01:31:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:31:03,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2021-11-13 01:31:03,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:03,424 INFO L225 Difference]: With dead ends: 237 [2021-11-13 01:31:03,425 INFO L226 Difference]: Without dead ends: 143 [2021-11-13 01:31:03,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2021-11-13 01:31:03,427 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 76 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4059.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.86ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4149.45ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:03,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 701 Invalid, 130 Unknown, 0 Unchecked, 5.86ms Time], IncrementalHoareTripleChecker [57 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 4149.45ms Time] [2021-11-13 01:31:03,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-13 01:31:03,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-11-13 01:31:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 92 states have internal predecessors, (106), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-13 01:31:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 185 transitions. [2021-11-13 01:31:03,453 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 185 transitions. Word has length 129 [2021-11-13 01:31:03,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:03,454 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 185 transitions. [2021-11-13 01:31:03,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 01:31:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 185 transitions. [2021-11-13 01:31:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-13 01:31:03,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:03,457 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:03,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:03,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-11-13 01:31:03,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:31:03,858 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:31:03,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:03,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2144851837, now seen corresponding path program 1 times [2021-11-13 01:31:03,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:03,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078560091] [2021-11-13 01:31:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:03,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:03,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:03,862 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:03,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:31:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:07,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:31:07,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-13 01:31:08,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-13 01:31:09,217 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:09,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078560091] [2021-11-13 01:31:09,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078560091] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:09,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1942797669] [2021-11-13 01:31:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:09,218 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:31:09,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:31:09,223 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:31:09,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-13 01:31:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:12,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:31:12,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:13,170 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-13 01:31:13,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-13 01:31:13,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1942797669] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:13,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654633216] [2021-11-13 01:31:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:13,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:31:13,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:13,799 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:31:13,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 01:31:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:15,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:31:15,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-13 01:31:15,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-11-13 01:31:16,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654633216] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:16,231 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 01:31:16,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 13 [2021-11-13 01:31:16,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569216257] [2021-11-13 01:31:16,232 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 01:31:16,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 01:31:16,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 01:31:16,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:31:16,234 INFO L87 Difference]: Start difference. First operand 143 states and 185 transitions. Second operand has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-13 01:31:16,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:16,647 INFO L93 Difference]: Finished difference Result 261 states and 335 transitions. [2021-11-13 01:31:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:31:16,652 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 144 [2021-11-13 01:31:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:16,655 INFO L225 Difference]: With dead ends: 261 [2021-11-13 01:31:16,655 INFO L226 Difference]: Without dead ends: 146 [2021-11-13 01:31:16,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:31:16,657 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 29 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 227.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.49ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 263.10ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:16,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 1208 Invalid, 64 Unknown, 0 Unchecked, 5.49ms Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 263.10ms Time] [2021-11-13 01:31:16,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-13 01:31:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2021-11-13 01:31:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 92 states have (on average 1.173913043478261) internal successors, (108), 94 states have internal predecessors, (108), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-13 01:31:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 187 transitions. [2021-11-13 01:31:16,672 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 187 transitions. Word has length 144 [2021-11-13 01:31:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:16,673 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 187 transitions. [2021-11-13 01:31:16,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-13 01:31:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 187 transitions. [2021-11-13 01:31:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-13 01:31:16,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:16,677 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:31:16,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:16,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:17,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-13 01:31:17,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:31:17,300 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:31:17,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:17,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1506492645, now seen corresponding path program 2 times [2021-11-13 01:31:17,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:17,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589031981] [2021-11-13 01:31:17,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:31:17,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:17,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:17,305 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:17,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d13889-c230-43b7-ad1f-2f2ec018c25f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process