./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:50:21,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:50:21,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:50:21,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:50:21,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:50:21,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:50:21,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:50:21,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:50:21,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:50:21,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:50:21,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:50:21,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:50:21,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:50:21,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:50:21,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:50:21,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:50:21,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:50:21,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:50:21,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:50:21,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:50:21,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:50:21,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:50:21,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:50:21,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:50:21,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:50:21,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:50:21,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:50:21,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:50:21,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:50:21,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:50:21,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:50:21,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:50:21,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:50:21,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:50:21,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:50:21,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:50:21,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:50:21,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:50:21,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:50:21,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:50:21,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:50:21,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:50:21,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:50:21,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:50:21,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:50:21,245 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:50:21,245 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:50:21,245 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:50:21,245 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:50:21,245 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:50:21,246 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:50:21,246 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:50:21,246 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:50:21,246 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:50:21,246 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:50:21,247 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:50:21,247 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:50:21,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:50:21,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:50:21,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:50:21,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:50:21,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:50:21,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:50:21,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:50:21,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:50:21,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:50:21,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:50:21,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:50:21,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:50:21,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:50:21,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:50:21,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:50:21,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:50:21,251 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:50:21,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:50:21,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:50:21,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:50:21,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:50:21,252 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 [2021-11-07 01:50:21,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:50:21,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:50:21,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:50:21,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:50:21,572 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:50:21,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-07 01:50:21,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/ad583ecd0/6c7f5c2cc66a4b20ab807ed4af3f2e67/FLAG0350063db [2021-11-07 01:50:22,540 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:50:22,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-07 01:50:22,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/ad583ecd0/6c7f5c2cc66a4b20ab807ed4af3f2e67/FLAG0350063db [2021-11-07 01:50:22,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/ad583ecd0/6c7f5c2cc66a4b20ab807ed4af3f2e67 [2021-11-07 01:50:22,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:50:22,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:50:22,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:50:22,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:50:22,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:50:22,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:50:22" (1/1) ... [2021-11-07 01:50:22,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44cdd410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:22, skipping insertion in model container [2021-11-07 01:50:22,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:50:22" (1/1) ... [2021-11-07 01:50:22,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:50:23,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:50:23,441 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-07 01:50:23,459 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-07 01:50:23,491 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:50:23,506 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:50:24,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:24,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:25,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:50:25,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:50:25,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:50:25,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:50:25,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:50:25,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:50:25,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:50:25,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:50:25,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:50:25,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:50:25,355 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:50:25,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:25,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:25,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:50:25,654 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:50:25,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43862676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:25, skipping insertion in model container [2021-11-07 01:50:25,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:50:25,657 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:50:25,661 INFO L168 Benchmark]: Toolchain (without parser) took 2693.45 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 57.1 MB in the beginning and 81.1 MB in the end (delta: -24.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:50:25,662 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:50:25,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2687.25 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 81.1 MB in the end (delta: -24.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:50:25,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2687.25 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 81.1 MB in the end (delta: -24.2 MB). Peak memory consumption was 20.0 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:50:28,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:50:28,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:50:28,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:50:28,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:50:28,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:50:28,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:50:28,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:50:28,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:50:28,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:50:28,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:50:28,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:50:28,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:50:28,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:50:28,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:50:28,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:50:28,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:50:28,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:50:28,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:50:28,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:50:28,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:50:28,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:50:28,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:50:28,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:50:28,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:50:28,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:50:28,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:50:28,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:50:28,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:50:28,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:50:28,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:50:28,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:50:28,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:50:28,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:50:28,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:50:28,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:50:28,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:50:28,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:50:28,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:50:28,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:50:28,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:50:28,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:50:28,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:50:28,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:50:28,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:50:28,312 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:50:28,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:50:28,312 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:50:28,313 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:50:28,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:50:28,313 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:50:28,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:50:28,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:50:28,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:50:28,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:50:28,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:50:28,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:50:28,318 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:50:28,318 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:50:28,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:50:28,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:50:28,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:50:28,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:50:28,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:50:28,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:50:28,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:50:28,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:50:28,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:50:28,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:50:28,322 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:50:28,322 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:50:28,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:50:28,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:50:28,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:50:28,323 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db28b965fea5f2f8d3364c7a869d0042b63b50d32f7a417c3baadcb401d0709 [2021-11-07 01:50:28,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:50:28,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:50:28,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:50:28,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:50:28,781 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:50:28,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-07 01:50:28,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/4d88fa38e/6b24f5f97e664742932add65d10e5ed0/FLAG12eacdce2 [2021-11-07 01:50:29,950 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:50:29,951 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i [2021-11-07 01:50:30,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/4d88fa38e/6b24f5f97e664742932add65d10e5ed0/FLAG12eacdce2 [2021-11-07 01:50:30,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/data/4d88fa38e/6b24f5f97e664742932add65d10e5ed0 [2021-11-07 01:50:30,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:50:30,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:50:30,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:50:30,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:50:30,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:50:30,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:50:30" (1/1) ... [2021-11-07 01:50:30,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79320b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:30, skipping insertion in model container [2021-11-07 01:50:30,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:50:30" (1/1) ... [2021-11-07 01:50:30,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:50:30,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:50:30,836 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-07 01:50:30,844 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-07 01:50:30,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:50:30,877 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:50:31,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,889 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:31,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:32,557 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:50:32,559 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:50:32,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:50:32,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:50:32,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:50:32,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:50:32,574 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:50:32,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:50:32,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:50:32,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:50:32,818 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:50:32,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:32,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:50:33,163 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:50:33,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:50:33,243 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-07 01:50:33,254 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-07 01:50:33,255 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:50:33,256 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:50:33,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:50:33,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:50:33,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:50:33,402 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:50:33,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:50:33,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:50:33,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:50:33,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:50:33,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:50:33,411 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:50:33,457 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:50:33,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:50:33,654 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:50:33,684 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4498,4511] [2021-11-07 01:50:33,685 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_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/sv-benchmarks/c/aws-c-common/aws_byte_buf_secure_zero_harness.i[4558,4571] [2021-11-07 01:50:33,687 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:50:33,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:50:33,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:33,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:50:33,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:50:33,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:50:33,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:50:33,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:50:33,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:50:33,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:50:33,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:50:33,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:50:33,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:50:33,847 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:50:34,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:34,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:50:34,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:50:34,391 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:50:34,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34 WrapperNode [2021-11-07 01:50:34,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:50:34,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:50:34,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:50:34,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:50:34,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:50:34,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:50:34,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:50:34,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:50:34,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:50:34,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:50:34,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:50:34,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:50:34,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (1/1) ... [2021-11-07 01:50:34,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:50:34,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:50:34,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:50:35,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:50:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:50:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:50:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:50:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:50:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:50:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:50:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:50:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:50:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:50:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:50:50,494 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:50:50,499 INFO L299 CfgBuilder]: Removed 59 assume(true) statements. [2021-11-07 01:50:50,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:50:50 BoogieIcfgContainer [2021-11-07 01:50:50,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:50:50,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:50:50,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:50:50,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:50:50,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:50:30" (1/3) ... [2021-11-07 01:50:50,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62812a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:50:50, skipping insertion in model container [2021-11-07 01:50:50,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:50:34" (2/3) ... [2021-11-07 01:50:50,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62812a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:50:50, skipping insertion in model container [2021-11-07 01:50:50,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:50:50" (3/3) ... [2021-11-07 01:50:50,515 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_secure_zero_harness.i [2021-11-07 01:50:50,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:50:50,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-07 01:50:50,587 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:50:50,597 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:50:50,598 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 01:50:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 108 states have (on average 1.4444444444444444) internal successors, (156), 112 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:50:50,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:50:50,635 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:50:50,635 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] [2021-11-07 01:50:50,636 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 01:50:50,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:50:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash -158234594, now seen corresponding path program 1 times [2021-11-07 01:50:50,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:50:50,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855872154] [2021-11-07 01:50:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:50:50,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:50:50,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:50:50,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:50:50,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:50:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:50:55,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:50:55,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:50:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:50:55,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:50:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:50:55,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:50:55,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855872154] [2021-11-07 01:50:55,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855872154] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:50:55,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:50:55,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:50:55,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994950159] [2021-11-07 01:50:55,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:50:55,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:50:55,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:50:55,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:50:55,289 INFO L87 Difference]: Start difference. First operand has 113 states, 108 states have (on average 1.4444444444444444) internal successors, (156), 112 states have internal predecessors, (156), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:50:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:50:55,314 INFO L93 Difference]: Finished difference Result 222 states and 307 transitions. [2021-11-07 01:50:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:50:55,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2021-11-07 01:50:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:50:55,325 INFO L225 Difference]: With dead ends: 222 [2021-11-07 01:50:55,326 INFO L226 Difference]: Without dead ends: 108 [2021-11-07 01:50:55,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:50:55,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-07 01:50:55,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-11-07 01:50:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 104 states have (on average 1.3461538461538463) internal successors, (140), 107 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:50:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 140 transitions. [2021-11-07 01:50:55,369 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 140 transitions. Word has length 29 [2021-11-07 01:50:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:50:55,370 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 140 transitions. [2021-11-07 01:50:55,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:50:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 140 transitions. [2021-11-07 01:50:55,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:50:55,372 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:50:55,372 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] [2021-11-07 01:50:55,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:50:55,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:50:55,599 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 01:50:55,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:50:55,600 INFO L85 PathProgramCache]: Analyzing trace with hash -4552034, now seen corresponding path program 1 times [2021-11-07 01:50:55,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:50:55,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40680863] [2021-11-07 01:50:55,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:50:55,611 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:50:55,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:50:55,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:50:55,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:50:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:50:59,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:50:59,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:51:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:00,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:51:00,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:00,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:51:00,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40680863] [2021-11-07 01:51:00,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40680863] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:51:00,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:51:00,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:51:00,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092047276] [2021-11-07 01:51:00,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:51:00,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:51:00,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:51:00,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:51:00,309 INFO L87 Difference]: Start difference. First operand 108 states and 140 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:00,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:51:00,565 INFO L93 Difference]: Finished difference Result 190 states and 246 transitions. [2021-11-07 01:51:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:51:00,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2021-11-07 01:51:00,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:51:00,574 INFO L225 Difference]: With dead ends: 190 [2021-11-07 01:51:00,574 INFO L226 Difference]: Without dead ends: 108 [2021-11-07 01:51:00,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:51:00,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-07 01:51:00,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-11-07 01:51:00,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 107 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:00,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2021-11-07 01:51:00,593 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 29 [2021-11-07 01:51:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:51:00,594 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2021-11-07 01:51:00,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2021-11-07 01:51:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:51:00,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:00,598 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] [2021-11-07 01:51:00,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:51:00,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:51:00,813 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 01:51:00,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:00,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1058096316, now seen corresponding path program 1 times [2021-11-07 01:51:00,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:51:00,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053258392] [2021-11-07 01:51:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:00,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:51:00,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:51:00,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:51:00,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:51:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:51:05,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:51:05,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:51:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:05,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:51:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:05,477 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:51:05,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053258392] [2021-11-07 01:51:05,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053258392] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:51:05,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:51:05,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:51:05,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350943808] [2021-11-07 01:51:05,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:51:05,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:51:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:51:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:51:05,479 INFO L87 Difference]: Start difference. First operand 108 states and 137 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:51:05,822 INFO L93 Difference]: Finished difference Result 231 states and 298 transitions. [2021-11-07 01:51:05,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:51:05,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-07 01:51:05,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:51:05,825 INFO L225 Difference]: With dead ends: 231 [2021-11-07 01:51:05,825 INFO L226 Difference]: Without dead ends: 148 [2021-11-07 01:51:05,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:51:05,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-07 01:51:05,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2021-11-07 01:51:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 115 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 145 transitions. [2021-11-07 01:51:05,841 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 145 transitions. Word has length 41 [2021-11-07 01:51:05,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:51:05,842 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 145 transitions. [2021-11-07 01:51:05,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:05,842 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 145 transitions. [2021-11-07 01:51:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:51:05,844 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:05,844 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] [2021-11-07 01:51:05,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:51:06,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:51:06,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 01:51:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 996056702, now seen corresponding path program 1 times [2021-11-07 01:51:06,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:51:06,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306997632] [2021-11-07 01:51:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:06,067 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:51:06,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:51:06,068 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:51:06,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:51:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:51:10,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:51:10,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:51:10,820 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 01:51:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:11,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:51:11,512 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 01:51:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:11,824 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:51:11,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306997632] [2021-11-07 01:51:11,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306997632] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:51:11,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:51:11,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:51:11,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558563862] [2021-11-07 01:51:11,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:51:11,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:51:11,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:51:11,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:51:11,827 INFO L87 Difference]: Start difference. First operand 116 states and 145 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 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 01:51:20,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:51:20,344 INFO L93 Difference]: Finished difference Result 227 states and 285 transitions. [2021-11-07 01:51:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:51:20,347 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 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 41 [2021-11-07 01:51:20,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:51:20,349 INFO L225 Difference]: With dead ends: 227 [2021-11-07 01:51:20,349 INFO L226 Difference]: Without dead ends: 138 [2021-11-07 01:51:20,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:51:20,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-07 01:51:20,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2021-11-07 01:51:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 108 states have (on average 1.287037037037037) internal successors, (139), 111 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2021-11-07 01:51:20,365 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 41 [2021-11-07 01:51:20,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:51:20,366 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2021-11-07 01:51:20,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 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 01:51:20,366 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2021-11-07 01:51:20,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 01:51:20,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:20,369 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] [2021-11-07 01:51:20,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:51:20,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:51:20,583 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 01:51:20,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1187507132, now seen corresponding path program 1 times [2021-11-07 01:51:20,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:51:20,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207103783] [2021-11-07 01:51:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:20,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:51:20,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:51:20,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:51:20,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:51:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:51:24,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:51:24,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:51:25,271 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:51:25,272 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 01:51:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:25,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:51:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:26,018 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:51:26,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207103783] [2021-11-07 01:51:26,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207103783] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:51:26,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:51:26,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:51:26,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16650575] [2021-11-07 01:51:26,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:51:26,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:51:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:51:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:51:26,020 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:51:33,679 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2021-11-07 01:51:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:51:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 49 [2021-11-07 01:51:33,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:51:33,684 INFO L225 Difference]: With dead ends: 327 [2021-11-07 01:51:33,684 INFO L226 Difference]: Without dead ends: 235 [2021-11-07 01:51:33,685 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:51:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-07 01:51:33,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 136. [2021-11-07 01:51:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2803030303030303) internal successors, (169), 135 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 169 transitions. [2021-11-07 01:51:33,699 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 169 transitions. Word has length 49 [2021-11-07 01:51:33,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:51:33,700 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 169 transitions. [2021-11-07 01:51:33,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:33,700 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 169 transitions. [2021-11-07 01:51:33,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 01:51:33,702 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:33,702 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] [2021-11-07 01:51:33,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:51:33,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:51:33,907 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 01:51:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:33,908 INFO L85 PathProgramCache]: Analyzing trace with hash 868038652, now seen corresponding path program 1 times [2021-11-07 01:51:33,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:51:33,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702087311] [2021-11-07 01:51:33,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:33,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:51:33,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:51:33,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:51:33,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:51:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:51:38,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:51:38,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:51:38,614 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:51:38,614 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 01:51:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:39,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:51:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:39,712 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:51:39,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702087311] [2021-11-07 01:51:39,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702087311] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:51:39,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:51:39,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:51:39,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656591034] [2021-11-07 01:51:39,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:51:39,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:51:39,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:51:39,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:51:39,714 INFO L87 Difference]: Start difference. First operand 136 states and 169 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:53,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:51:53,504 INFO L93 Difference]: Finished difference Result 379 states and 447 transitions. [2021-11-07 01:51:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:51:53,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 49 [2021-11-07 01:51:53,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:51:53,510 INFO L225 Difference]: With dead ends: 379 [2021-11-07 01:51:53,510 INFO L226 Difference]: Without dead ends: 226 [2021-11-07 01:51:53,511 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:51:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-07 01:51:53,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 130. [2021-11-07 01:51:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 126 states have (on average 1.2301587301587302) internal successors, (155), 129 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 155 transitions. [2021-11-07 01:51:53,530 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 155 transitions. Word has length 49 [2021-11-07 01:51:53,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:51:53,530 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 155 transitions. [2021-11-07 01:51:53,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 155 transitions. [2021-11-07 01:51:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 01:51:53,540 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:53,540 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] [2021-11-07 01:51:53,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:51:53,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:51:53,763 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 01:51:53,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:53,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1487976734, now seen corresponding path program 1 times [2021-11-07 01:51:53,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:51:53,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324114716] [2021-11-07 01:51:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:53,770 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:51:53,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:51:53,771 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:51:53,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5eba4-bc50-4a32-885b-49bdf7ba24ad/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:51:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:51:58,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 01:51:58,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:51:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:59,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:11,073 WARN L207 SmtUtils]: Spent 10.85 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-07 01:52:11,077 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-07 01:52:11,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771