./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:17:09,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:17:09,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:17:09,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:17:09,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:17:09,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:17:09,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:17:09,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:17:09,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:17:09,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:17:09,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:17:09,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:17:09,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:17:09,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:17:09,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:17:09,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:17:09,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:17:09,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:17:09,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:17:09,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:17:09,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:17:09,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:17:09,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:17:09,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:17:09,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:17:09,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:17:09,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:17:09,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:17:09,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:17:09,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:17:09,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:17:09,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:17:09,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:17:09,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:17:09,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:17:09,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:17:09,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:17:09,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:17:09,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:17:09,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:17:09,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:17:09,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:17:09,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:17:09,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:17:09,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:17:09,318 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:17:09,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:17:09,319 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:17:09,319 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:17:09,320 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:17:09,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:17:09,328 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:17:09,330 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:17:09,330 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:17:09,330 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:17:09,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:17:09,331 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:17:09,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:17:09,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:17:09,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:17:09,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:17:09,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:17:09,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:17:09,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:17:09,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:17:09,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:17:09,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:17:09,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:17:09,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:17:09,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:17:09,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:17:09,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:17:09,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:17:09,339 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:17:09,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:17:09,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:17:09,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:17:09,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:17:09,341 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2021-11-07 02:17:09,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:17:09,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:17:09,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:17:09,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:17:09,755 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:17:09,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-07 02:17:09,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/73567c22e/9dda5e4b5eb949e6b46df7f9042cf9db/FLAGb42ba22fe [2021-11-07 02:17:11,003 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:17:11,004 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-07 02:17:11,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/73567c22e/9dda5e4b5eb949e6b46df7f9042cf9db/FLAGb42ba22fe [2021-11-07 02:17:11,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/73567c22e/9dda5e4b5eb949e6b46df7f9042cf9db [2021-11-07 02:17:11,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:17:11,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:17:11,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:17:11,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:17:11,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:17:11,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:17:11" (1/1) ... [2021-11-07 02:17:11,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6294f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:11, skipping insertion in model container [2021-11-07 02:17:11,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:17:11" (1/1) ... [2021-11-07 02:17:11,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:17:11,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:17:11,980 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-07 02:17:12,000 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-07 02:17:12,028 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:17:12,034 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:17:13,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,322 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:13,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:17:13,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:17:13,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:17:13,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:17:13,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:17:13,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:17:13,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:17:13,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:17:13,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:17:13,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:17:14,014 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:17:14,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:14,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:14,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:17:14,286 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 02:17:14,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4da25960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:14, skipping insertion in model container [2021-11-07 02:17:14,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:17:14,288 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:17:14,292 INFO L168 Benchmark]: Toolchain (without parser) took 2884.94 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 59.2 MB in the beginning and 106.0 MB in the end (delta: -46.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:17:14,292 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:17:14,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2881.74 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 59.0 MB in the beginning and 106.8 MB in the end (delta: -47.8 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:17:14,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2881.74 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 59.0 MB in the beginning and 106.8 MB in the end (delta: -47.8 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:17:16,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:17:16,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:17:16,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:17:16,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:17:16,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:17:16,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:17:16,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:17:16,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:17:16,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:17:16,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:17:16,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:17:16,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:17:16,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:17:16,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:17:16,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:17:16,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:17:16,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:17:16,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:17:16,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:17:16,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:17:16,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:17:16,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:17:16,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:17:16,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:17:16,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:17:16,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:17:16,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:17:16,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:17:16,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:17:16,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:17:16,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:17:16,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:17:16,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:17:16,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:17:16,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:17:16,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:17:16,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:17:16,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:17:16,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:17:16,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:17:16,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:17:17,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:17:17,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:17:17,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:17:17,057 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:17:17,057 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:17:17,057 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:17:17,058 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:17:17,058 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:17:17,058 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:17:17,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:17:17,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:17:17,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:17:17,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:17:17,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:17:17,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:17:17,063 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:17:17,063 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:17:17,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:17:17,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:17:17,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:17:17,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:17:17,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:17:17,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:17:17,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:17:17,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:17:17,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:17:17,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:17:17,067 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:17:17,067 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:17:17,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:17:17,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:17:17,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:17:17,068 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2021-11-07 02:17:17,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:17:17,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:17:17,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:17:17,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:17:17,551 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:17:17,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-07 02:17:17,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/013b34d64/5b703795c73c458e93208dc9cefa888c/FLAG7ccee176b [2021-11-07 02:17:18,880 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:17:18,881 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-07 02:17:18,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/013b34d64/5b703795c73c458e93208dc9cefa888c/FLAG7ccee176b [2021-11-07 02:17:19,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/data/013b34d64/5b703795c73c458e93208dc9cefa888c [2021-11-07 02:17:19,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:17:19,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:17:19,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:17:19,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:17:19,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:17:19,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:17:19" (1/1) ... [2021-11-07 02:17:19,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798f7359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:19, skipping insertion in model container [2021-11-07 02:17:19,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:17:19" (1/1) ... [2021-11-07 02:17:19,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:17:19,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:17:19,914 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-07 02:17:19,926 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-07 02:17:19,959 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:17:19,968 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:17:21,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:21,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:17:21,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:17:21,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:17:21,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:17:21,886 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:17:21,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:17:21,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:17:21,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:17:21,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:17:21,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:17:22,146 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:17:22,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:17:22,468 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:17:22,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:17:22,530 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-07 02:17:22,531 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-07 02:17:22,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:17:22,533 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:17:22,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:17:22,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:17:22,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:17:22,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:17:22,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:17:22,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:17:22,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:17:22,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:17:22,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:17:22,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:17:22,682 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:17:22,777 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,777 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:22,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:17:22,921 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:17:22,947 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-07 02:17:22,953 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_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-07 02:17:22,955 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:17:22,957 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:17:23,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,026 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,026 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,064 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:17:23,065 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:17:23,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:17:23,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:17:23,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:17:23,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:17:23,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:17:23,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:17:23,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:17:23,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:17:23,106 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:17:23,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:17:23,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:17:23,702 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:17:23,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23 WrapperNode [2021-11-07 02:17:23,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:17:23,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:17:23,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:17:23,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:17:23,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:23,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:17:24,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:17:24,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:17:24,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:17:24,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:17:24,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:17:24,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:17:24,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:17:24,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (1/1) ... [2021-11-07 02:17:24,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:17:24,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:17:24,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:17:24,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:17:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 02:17:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:17:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:17:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:17:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:17:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:17:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:17:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:17:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:17:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:17:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:17:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:17:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:17:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:17:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:17:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:17:43,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:17:43,077 INFO L299 CfgBuilder]: Removed 128 assume(true) statements. [2021-11-07 02:17:43,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:17:43 BoogieIcfgContainer [2021-11-07 02:17:43,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:17:43,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:17:43,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:17:43,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:17:43,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:17:19" (1/3) ... [2021-11-07 02:17:43,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d25b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:17:43, skipping insertion in model container [2021-11-07 02:17:43,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:17:23" (2/3) ... [2021-11-07 02:17:43,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d25b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:17:43, skipping insertion in model container [2021-11-07 02:17:43,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:17:43" (3/3) ... [2021-11-07 02:17:43,087 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2021-11-07 02:17:43,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:17:43,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-07 02:17:43,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:17:43,145 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 02:17:43,146 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-07 02:17:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 243 states have (on average 1.4897119341563787) internal successors, (362), 260 states have internal predecessors, (362), 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 02:17:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 02:17:43,174 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:43,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:17:43,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:17:43,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 411533362, now seen corresponding path program 1 times [2021-11-07 02:17:43,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:43,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873598652] [2021-11-07 02:17:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:43,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:43,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:43,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:43,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:17:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:47,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:17:47,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:48,032 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 02:17:48,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:48,296 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 02:17:48,297 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:48,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873598652] [2021-11-07 02:17:48,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873598652] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:48,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:48,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:17:48,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522215020] [2021-11-07 02:17:48,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:17:48,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:48,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:17:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:17:48,335 INFO L87 Difference]: Start difference. First operand has 261 states, 243 states have (on average 1.4897119341563787) internal successors, (362), 260 states have internal predecessors, (362), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 02:17:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:48,398 INFO L93 Difference]: Finished difference Result 518 states and 719 transitions. [2021-11-07 02:17:48,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:17:48,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-07 02:17:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:48,420 INFO L225 Difference]: With dead ends: 518 [2021-11-07 02:17:48,420 INFO L226 Difference]: Without dead ends: 254 [2021-11-07 02:17:48,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 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 02:17:48,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-07 02:17:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-07 02:17:48,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 237 states have (on average 1.358649789029536) internal successors, (322), 253 states have internal predecessors, (322), 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 02:17:48,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 322 transitions. [2021-11-07 02:17:48,479 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 322 transitions. Word has length 44 [2021-11-07 02:17:48,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:48,479 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 322 transitions. [2021-11-07 02:17:48,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 02:17:48,480 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 322 transitions. [2021-11-07 02:17:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 02:17:48,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:48,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:17:48,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:17:48,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:48,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:17:48,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash -705539408, now seen corresponding path program 1 times [2021-11-07 02:17:48,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:48,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558355365] [2021-11-07 02:17:48,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:48,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:48,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:48,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:48,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:17:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:53,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:17:53,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:53,730 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 02:17:53,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:53,988 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 02:17:53,989 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:53,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558355365] [2021-11-07 02:17:53,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558355365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:53,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:53,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:17:53,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474220127] [2021-11-07 02:17:53,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:17:53,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:53,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:17:53,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:17:53,993 INFO L87 Difference]: Start difference. First operand 254 states and 322 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 02:17:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:56,747 INFO L93 Difference]: Finished difference Result 676 states and 855 transitions. [2021-11-07 02:17:56,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:17:56,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2021-11-07 02:17:56,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:56,752 INFO L225 Difference]: With dead ends: 676 [2021-11-07 02:17:56,753 INFO L226 Difference]: Without dead ends: 448 [2021-11-07 02:17:56,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 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 02:17:56,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-11-07 02:17:56,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 354. [2021-11-07 02:17:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 337 states have (on average 1.3649851632047478) internal successors, (460), 353 states have internal predecessors, (460), 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 02:17:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 460 transitions. [2021-11-07 02:17:56,793 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 460 transitions. Word has length 44 [2021-11-07 02:17:56,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:56,793 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 460 transitions. [2021-11-07 02:17:56,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 02:17:56,794 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 460 transitions. [2021-11-07 02:17:56,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:17:56,797 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:56,797 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, 1, 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 02:17:56,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:17:57,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:57,022 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:17:57,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:57,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1240202915, now seen corresponding path program 1 times [2021-11-07 02:17:57,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:57,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010563949] [2021-11-07 02:17:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:57,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:57,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:57,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:57,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:18:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:01,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:18:01,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:02,141 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 02:18:02,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:02,384 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 02:18:02,384 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:02,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010563949] [2021-11-07 02:18:02,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010563949] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:02,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:02,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:18:02,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000366301] [2021-11-07 02:18:02,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:18:02,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:02,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:18:02,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:18:02,387 INFO L87 Difference]: Start difference. First operand 354 states and 460 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:18:03,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:03,101 INFO L93 Difference]: Finished difference Result 803 states and 1056 transitions. [2021-11-07 02:18:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:18:03,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2021-11-07 02:18:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:03,105 INFO L225 Difference]: With dead ends: 803 [2021-11-07 02:18:03,105 INFO L226 Difference]: Without dead ends: 474 [2021-11-07 02:18:03,107 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 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 02:18:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-07 02:18:03,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 378. [2021-11-07 02:18:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 361 states have (on average 1.3407202216066483) internal successors, (484), 377 states have internal predecessors, (484), 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 02:18:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 484 transitions. [2021-11-07 02:18:03,132 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 484 transitions. Word has length 50 [2021-11-07 02:18:03,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:03,133 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 484 transitions. [2021-11-07 02:18:03,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:18:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 484 transitions. [2021-11-07 02:18:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:18:03,136 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:03,136 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, 1, 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 02:18:03,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:18:03,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:03,337 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:18:03,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:03,338 INFO L85 PathProgramCache]: Analyzing trace with hash -396197413, now seen corresponding path program 1 times [2021-11-07 02:18:03,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:03,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941381544] [2021-11-07 02:18:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:03,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:03,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:03,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:03,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:18:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:08,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 02:18:08,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:08,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 02:18:09,001 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 02:18:09,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:09,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 02:18:09,661 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 02:18:09,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:09,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941381544] [2021-11-07 02:18:09,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941381544] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:09,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:09,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 02:18:09,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943595941] [2021-11-07 02:18:09,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 02:18:09,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:09,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 02:18:09,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:18:09,666 INFO L87 Difference]: Start difference. First operand 378 states and 484 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 02:18:25,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:25,727 INFO L93 Difference]: Finished difference Result 931 states and 1185 transitions. [2021-11-07 02:18:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 02:18:25,728 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 50 [2021-11-07 02:18:25,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:25,732 INFO L225 Difference]: With dead ends: 931 [2021-11-07 02:18:25,732 INFO L226 Difference]: Without dead ends: 580 [2021-11-07 02:18:25,734 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-11-07 02:18:25,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-11-07 02:18:25,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 376. [2021-11-07 02:18:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 359 states have (on average 1.33983286908078) internal successors, (481), 375 states have internal predecessors, (481), 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 02:18:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 481 transitions. [2021-11-07 02:18:25,754 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 481 transitions. Word has length 50 [2021-11-07 02:18:25,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:25,754 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 481 transitions. [2021-11-07 02:18:25,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 02:18:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 481 transitions. [2021-11-07 02:18:25,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 02:18:25,757 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:25,758 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, 1, 1, 1, 1, 1, 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 02:18:25,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:18:25,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:25,977 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:18:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash 31619173, now seen corresponding path program 1 times [2021-11-07 02:18:25,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:25,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589065509] [2021-11-07 02:18:25,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:25,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:25,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:25,982 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:25,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:18:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:30,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:18:30,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:30,518 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:18:30,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 02:18:30,741 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 02:18:30,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:31,200 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 02:18:31,200 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:31,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589065509] [2021-11-07 02:18:31,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589065509] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:31,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:31,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 02:18:31,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21119813] [2021-11-07 02:18:31,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:18:31,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:31,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:18:31,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:18:31,203 INFO L87 Difference]: Start difference. First operand 376 states and 481 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 02:18:42,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:42,794 INFO L93 Difference]: Finished difference Result 1167 states and 1477 transitions. [2021-11-07 02:18:42,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:18:42,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 54 [2021-11-07 02:18:42,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:42,803 INFO L225 Difference]: With dead ends: 1167 [2021-11-07 02:18:42,803 INFO L226 Difference]: Without dead ends: 811 [2021-11-07 02:18:42,804 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:18:42,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2021-11-07 02:18:42,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 458. [2021-11-07 02:18:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 441 states have (on average 1.3287981859410432) internal successors, (586), 457 states have internal predecessors, (586), 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 02:18:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 586 transitions. [2021-11-07 02:18:42,825 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 586 transitions. Word has length 54 [2021-11-07 02:18:42,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:42,825 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 586 transitions. [2021-11-07 02:18:42,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 02:18:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 586 transitions. [2021-11-07 02:18:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 02:18:42,828 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:42,828 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, 1, 1, 1, 1, 1, 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 02:18:42,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:18:43,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:43,049 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:18:43,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:43,050 INFO L85 PathProgramCache]: Analyzing trace with hash -362747613, now seen corresponding path program 1 times [2021-11-07 02:18:43,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:43,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485091567] [2021-11-07 02:18:43,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:43,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:43,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:43,055 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:43,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:18:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:47,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:18:47,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:47,708 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:18:47,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 02:18:48,234 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 02:18:48,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:48,834 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 02:18:48,834 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:48,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485091567] [2021-11-07 02:18:48,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485091567] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:48,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:48,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 02:18:48,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010043224] [2021-11-07 02:18:48,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:18:48,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:48,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:18:48,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:18:48,839 INFO L87 Difference]: Start difference. First operand 458 states and 586 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 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 02:19:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:13,937 INFO L93 Difference]: Finished difference Result 1456 states and 1775 transitions. [2021-11-07 02:19:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 02:19:13,941 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 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 54 [2021-11-07 02:19:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:13,948 INFO L225 Difference]: With dead ends: 1456 [2021-11-07 02:19:13,948 INFO L226 Difference]: Without dead ends: 899 [2021-11-07 02:19:13,950 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:19:13,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2021-11-07 02:19:13,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 450. [2021-11-07 02:19:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 433 states have (on average 1.2702078521939955) internal successors, (550), 449 states have internal predecessors, (550), 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 02:19:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 550 transitions. [2021-11-07 02:19:13,981 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 550 transitions. Word has length 54 [2021-11-07 02:19:13,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:13,981 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 550 transitions. [2021-11-07 02:19:13,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 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 02:19:13,982 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 550 transitions. [2021-11-07 02:19:13,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 02:19:13,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:13,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:14,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:19:14,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:19:14,197 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-07 02:19:14,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash -229471252, now seen corresponding path program 1 times [2021-11-07 02:19:14,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:19:14,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115950336] [2021-11-07 02:19:14,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:14,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:19:14,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:19:14,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:19:14,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fea2c8f-ef9d-4381-b4e4-8bfcf8fb1cee/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:19:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:18,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-07 02:19:18,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:22,763 INFO L354 Elim1Store]: treesize reduction 1202, result has 0.1 percent of original size [2021-11-07 02:19:22,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 225 treesize of output 69 [2021-11-07 02:19:23,315 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 02:19:23,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:20:05,795 WARN L207 SmtUtils]: Spent 37.81 s on a formula simplification. DAG size of input: 1166 DAG size of output: 513 [2021-11-07 02:20:05,813 INFO L354 Elim1Store]: treesize reduction 2280, result has 39.2 percent of original size [2021-11-07 02:20:05,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 252 treesize of output 1538