./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8 --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 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:11:38,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:11:38,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:11:38,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:11:38,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:11:38,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:11:38,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:11:38,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:11:38,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:11:38,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:11:38,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:11:38,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:11:38,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:11:38,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:11:38,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:11:38,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:11:38,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:11:38,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:11:38,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:11:38,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:11:38,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:11:38,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:11:38,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:11:38,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:11:38,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:11:38,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:11:38,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:11:38,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:11:38,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:11:38,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:11:38,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:11:38,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:11:38,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:11:38,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:11:38,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:11:38,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:11:38,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:11:38,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:11:38,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:11:38,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:11:38,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:11:38,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:11:38,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:11:38,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:11:38,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:11:38,351 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:11:38,352 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:11:38,352 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:11:38,352 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:11:38,352 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:11:38,358 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:11:38,359 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:11:38,360 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:11:38,360 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:11:38,360 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:11:38,361 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:11:38,361 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:11:38,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:11:38,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:11:38,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:11:38,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:11:38,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:11:38,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:11:38,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:11:38,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:11:38,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:11:38,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:11:38,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:11:38,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:11:38,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:11:38,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:11:38,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:11:38,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:11:38,367 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:11:38,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:11:38,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:11:38,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:11:38,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:11:38,368 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-11-07 01:11:38,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:11:38,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:11:38,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:11:38,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:11:38,705 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:11:38,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-07 01:11:38,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/2dac40376/30db965ad7364c8b9ae5f08ebb3ac33a/FLAGe47dee935 [2021-11-07 01:11:39,565 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:11:39,566 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-07 01:11:39,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/2dac40376/30db965ad7364c8b9ae5f08ebb3ac33a/FLAGe47dee935 [2021-11-07 01:11:40,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/2dac40376/30db965ad7364c8b9ae5f08ebb3ac33a [2021-11-07 01:11:40,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:11:40,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:11:40,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:40,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:11:40,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:11:40,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:40" (1/1) ... [2021-11-07 01:11:40,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20498cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:40, skipping insertion in model container [2021-11-07 01:11:40,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:40" (1/1) ... [2021-11-07 01:11:40,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:11:40,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:40,554 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-07 01:11:40,564 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-07 01:11:40,593 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:11:40,601 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:11:41,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:41,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:11:41,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:11:41,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:11:41,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:11:41,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:11:41,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:11:41,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:11:41,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:11:41,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:11:41,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:11:42,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:11:42,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:42,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:42,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:42,428 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) [2021-11-07 01:11:42,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f6a14ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:42, skipping insertion in model container [2021-11-07 01:11:42,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:42,429 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:11:42,431 INFO L168 Benchmark]: Toolchain (without parser) took 2325.38 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.1 MB in the beginning and 82.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:11:42,432 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:11:42,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2320.36 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 65.9 MB in the beginning and 82.5 MB in the end (delta: -16.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:11:42,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2320.36 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 65.9 MB in the beginning and 82.5 MB in the end (delta: -16.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6984]: 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8 --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 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:11:44,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:11:44,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:11:44,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:11:44,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:11:44,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:11:44,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:11:44,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:11:44,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:11:44,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:11:44,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:11:44,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:11:44,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:11:44,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:11:44,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:11:44,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:11:44,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:11:44,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:11:44,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:11:44,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:11:44,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:11:44,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:11:44,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:11:44,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:11:44,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:11:44,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:11:44,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:11:44,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:11:44,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:11:44,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:11:44,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:11:44,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:11:44,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:11:44,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:11:44,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:11:44,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:11:44,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:11:44,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:11:44,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:11:44,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:11:44,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:11:44,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:11:44,914 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:11:44,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:11:44,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:11:44,916 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:11:44,917 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:11:44,917 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:11:44,917 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:11:44,917 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:11:44,918 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:11:44,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:11:44,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:11:44,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:11:44,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:11:44,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:11:44,921 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:11:44,922 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:11:44,922 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:11:44,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:11:44,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:11:44,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:11:44,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:11:44,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:11:44,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:11:44,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:11:44,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:11:44,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:11:44,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:11:44,925 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:11:44,925 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:11:44,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:11:44,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:11:44,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:11:44,926 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d8c1ced61af2c61b36782af6d28a32546abe33f0c852d8f862ae04f74aae5e5 [2021-11-07 01:11:45,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:11:45,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:11:45,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:11:45,349 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:11:45,350 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:11:45,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-07 01:11:45,428 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/d5f14ba8c/cbdd2c9e72bf42f6a6424c27aeb1813f/FLAG6a12a5a2c [2021-11-07 01:11:46,376 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:11:46,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i [2021-11-07 01:11:46,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/d5f14ba8c/cbdd2c9e72bf42f6a6424c27aeb1813f/FLAG6a12a5a2c [2021-11-07 01:11:46,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/data/d5f14ba8c/cbdd2c9e72bf42f6a6424c27aeb1813f [2021-11-07 01:11:46,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:11:46,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:11:46,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:46,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:11:46,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:11:46,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:46" (1/1) ... [2021-11-07 01:11:46,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fb88b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:46, skipping insertion in model container [2021-11-07 01:11:46,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:46" (1/1) ... [2021-11-07 01:11:46,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:11:47,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:47,321 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-07 01:11:47,328 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-07 01:11:47,356 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:11:47,364 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:11:48,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,459 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:48,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:11:48,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:11:48,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:11:48,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:11:48,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:11:48,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:11:48,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:11:48,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:11:48,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:11:48,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:11:49,079 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:11:49,157 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,157 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:49,304 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:11:49,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:49,349 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-07 01:11:49,349 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-07 01:11:49,350 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:11:49,351 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:11:49,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:11:49,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:11:49,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:11:49,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:11:49,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:11:49,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:11:49,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:11:49,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:11:49,433 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:11:49,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:11:49,454 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:11:49,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:49,593 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:11:49,605 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4491,4504] [2021-11-07 01:11:49,606 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_f3aea04b-ee05-4671-97a0-d47d572f46b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_harness.i[4551,4564] [2021-11-07 01:11:49,607 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:11:49,608 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:11:49,638 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,638 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,638 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:11:49,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:11:49,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:11:49,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:11:49,749 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:11:49,749 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:11:49,750 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:11:49,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:11:49,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:11:49,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:11:49,775 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:11:49,822 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,823 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:11:49,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:50,324 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:11:50,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50 WrapperNode [2021-11-07 01:11:50,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:50,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:11:50,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:11:50,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:11:50,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:11:50,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:11:50,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:11:50,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:11:50,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:11:50,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:11:50,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:11:50,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:11:50,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (1/1) ... [2021-11-07 01:11:50,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:11:50,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:11:50,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:11:50,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:11:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:11:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:11:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:11:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:11:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:11:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:11:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:11:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:11:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:11:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:11:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:11:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:12:06,806 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:12:06,807 INFO L299 CfgBuilder]: Removed 50 assume(true) statements. [2021-11-07 01:12:06,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:12:06 BoogieIcfgContainer [2021-11-07 01:12:06,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:12:06,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:12:06,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:12:06,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:12:06,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:11:46" (1/3) ... [2021-11-07 01:12:06,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cb3975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:12:06, skipping insertion in model container [2021-11-07 01:12:06,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:50" (2/3) ... [2021-11-07 01:12:06,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cb3975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:12:06, skipping insertion in model container [2021-11-07 01:12:06,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:12:06" (3/3) ... [2021-11-07 01:12:06,818 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_harness.i [2021-11-07 01:12:06,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:12:06,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 01:12:06,871 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:12:06,877 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 [2021-11-07 01:12:06,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 01:12:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 84 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:12:06,899 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:06,900 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:06,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:12:06,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:06,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1714787328, now seen corresponding path program 1 times [2021-11-07 01:12:06,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:06,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424013844] [2021-11-07 01:12:06,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:06,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:06,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:06,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:12:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:11,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:12:11,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:11,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:11,183 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:12:11,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424013844] [2021-11-07 01:12:11,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424013844] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:12:11,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:12:11,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:12:11,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917099267] [2021-11-07 01:12:11,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:12:11,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:12:11,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:12:11,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:12:11,210 INFO L87 Difference]: Start difference. First operand has 85 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 84 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:11,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:12:11,232 INFO L93 Difference]: Finished difference Result 166 states and 223 transitions. [2021-11-07 01:12:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:12:11,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:12:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:12:11,243 INFO L225 Difference]: With dead ends: 166 [2021-11-07 01:12:11,243 INFO L226 Difference]: Without dead ends: 79 [2021-11-07 01:12:11,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:12:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-07 01:12:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-07 01:12:11,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 78 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:11,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2021-11-07 01:12:11,295 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 15 [2021-11-07 01:12:11,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:12:11,296 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2021-11-07 01:12:11,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:11,297 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2021-11-07 01:12:11,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:12:11,301 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:11,301 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:11,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:12:11,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:12:11,507 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:12:11,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1972952766, now seen corresponding path program 1 times [2021-11-07 01:12:11,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:11,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186574362] [2021-11-07 01:12:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:11,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:11,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:11,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:11,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:12:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:15,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:12:15,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:15,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:15,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:15,665 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:12:15,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186574362] [2021-11-07 01:12:15,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186574362] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:12:15,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:12:15,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:12:15,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206694296] [2021-11-07 01:12:15,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:12:15,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:12:15,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:12:15,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:12:15,669 INFO L87 Difference]: Start difference. First operand 79 states and 97 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:12:17,964 INFO L93 Difference]: Finished difference Result 149 states and 179 transitions. [2021-11-07 01:12:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:12:17,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:12:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:12:17,967 INFO L225 Difference]: With dead ends: 149 [2021-11-07 01:12:17,967 INFO L226 Difference]: Without dead ends: 111 [2021-11-07 01:12:17,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:12:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-07 01:12:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 82. [2021-11-07 01:12:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 77 states have (on average 1.2857142857142858) internal successors, (99), 81 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 99 transitions. [2021-11-07 01:12:17,978 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 99 transitions. Word has length 15 [2021-11-07 01:12:17,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:12:17,978 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 99 transitions. [2021-11-07 01:12:17,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2021-11-07 01:12:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:12:17,980 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:17,980 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:18,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:12:18,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:12:18,184 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:12:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:18,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1369831661, now seen corresponding path program 1 times [2021-11-07 01:12:18,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:18,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922299147] [2021-11-07 01:12:18,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:18,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:18,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:18,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:18,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:12:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:22,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1714 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:12:22,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:22,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:22,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:12:22,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922299147] [2021-11-07 01:12:22,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922299147] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:12:22,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:12:22,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:12:22,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899131402] [2021-11-07 01:12:22,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:12:22,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:12:22,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:12:22,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:12:22,380 INFO L87 Difference]: Start difference. First operand 82 states and 99 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:29,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:12:29,747 INFO L93 Difference]: Finished difference Result 144 states and 173 transitions. [2021-11-07 01:12:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:12:29,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 01:12:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:12:29,749 INFO L225 Difference]: With dead ends: 144 [2021-11-07 01:12:29,749 INFO L226 Difference]: Without dead ends: 140 [2021-11-07 01:12:29,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:12:29,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-07 01:12:29,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 90. [2021-11-07 01:12:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 85 states have (on average 1.2588235294117647) internal successors, (107), 89 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2021-11-07 01:12:29,760 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 21 [2021-11-07 01:12:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:12:29,761 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2021-11-07 01:12:29,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2021-11-07 01:12:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:12:29,763 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:29,763 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:29,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:12:29,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:12:29,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:12:29,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:29,980 INFO L85 PathProgramCache]: Analyzing trace with hash -692640299, now seen corresponding path program 1 times [2021-11-07 01:12:29,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:29,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333710184] [2021-11-07 01:12:29,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:29,983 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:29,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:29,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:29,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:12:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:33,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:12:33,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:33,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:34,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:12:34,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333710184] [2021-11-07 01:12:34,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333710184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:12:34,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:12:34,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:12:34,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917984202] [2021-11-07 01:12:34,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:12:34,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:12:34,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:12:34,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:12:34,025 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:37,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:12:37,896 INFO L93 Difference]: Finished difference Result 216 states and 261 transitions. [2021-11-07 01:12:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:12:37,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 01:12:37,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:12:37,899 INFO L225 Difference]: With dead ends: 216 [2021-11-07 01:12:37,899 INFO L226 Difference]: Without dead ends: 153 [2021-11-07 01:12:37,900 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:12:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-07 01:12:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 93. [2021-11-07 01:12:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.25) internal successors, (110), 92 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2021-11-07 01:12:37,908 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 25 [2021-11-07 01:12:37,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:12:37,909 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2021-11-07 01:12:37,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:12:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2021-11-07 01:12:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:12:37,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:37,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:37,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:12:38,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:12:38,124 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:12:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1893417011, now seen corresponding path program 1 times [2021-11-07 01:12:38,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:38,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834240232] [2021-11-07 01:12:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:38,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:38,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:38,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:38,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3aea04b-ee05-4671-97a0-d47d572f46b4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process