./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:25:31,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:25:31,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:25:31,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:25:31,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:25:31,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:25:31,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:25:31,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:25:31,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:25:31,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:25:31,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:25:31,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:25:31,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:25:31,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:25:31,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:25:31,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:25:31,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:25:31,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:25:31,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:25:31,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:25:31,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:25:31,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:25:31,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:25:31,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:25:31,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:25:31,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:25:31,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:25:31,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:25:31,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:25:31,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:25:31,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:25:31,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:25:31,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:25:31,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:25:31,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:25:31,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:25:31,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:25:31,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:25:31,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:25:31,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:25:31,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:25:31,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:25:31,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:25:31,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:25:31,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:25:31,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:25:31,228 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:25:31,228 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:25:31,228 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:25:31,229 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:25:31,235 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:25:31,235 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:25:31,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:25:31,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:25:31,237 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:25:31,237 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:25:31,237 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:25:31,237 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:25:31,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:25:31,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:25:31,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:25:31,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:25:31,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:25:31,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:25:31,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:25:31,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:25:31,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:25:31,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:25:31,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:25:31,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:25:31,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:25:31,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:25:31,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:25:31,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:25:31,242 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:25:31,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:25:31,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:25:31,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:25:31,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:25:31,251 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_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e [2021-11-12 23:25:31,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:25:31,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:25:31,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:25:31,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:25:31,528 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:25:31,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-12 23:25:31,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/193ff412e/4570781cbcdf41b8994ab55b82d06738/FLAGb4d7417b5 [2021-11-12 23:25:32,431 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:25:32,432 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-12 23:25:32,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/193ff412e/4570781cbcdf41b8994ab55b82d06738/FLAGb4d7417b5 [2021-11-12 23:25:32,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/193ff412e/4570781cbcdf41b8994ab55b82d06738 [2021-11-12 23:25:32,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:25:32,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:25:32,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:32,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:25:32,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:25:32,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:32" (1/1) ... [2021-11-12 23:25:32,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5733221d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:32, skipping insertion in model container [2021-11-12 23:25:32,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:32" (1/1) ... [2021-11-12 23:25:32,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:25:33,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:25:33,335 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-12 23:25:33,342 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-12 23:25:33,366 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:25:33,372 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:25:34,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:34,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:25:34,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:25:34,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:25:34,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:25:34,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:25:34,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:25:34,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:25:34,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:25:34,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:25:34,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:25:34,982 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:25:35,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:35,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:35,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:35,297 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:25:35,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e67ca23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:35, skipping insertion in model container [2021-11-12 23:25:35,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:35,300 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:25:35,303 INFO L158 Benchmark]: Toolchain (without parser) took 2360.41ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.9MB in the beginning and 71.2MB in the end (delta: -11.3MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2021-11-12 23:25:35,303 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:25:35,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2358.10ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.7MB in the beginning and 71.2MB in the end (delta: -11.5MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2021-11-12 23:25:35,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2358.10ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.7MB in the beginning and 71.2MB in the end (delta: -11.5MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * 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_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:25:37,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:25:37,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:25:37,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:25:37,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:25:37,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:25:37,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:25:37,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:25:37,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:25:37,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:25:37,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:25:37,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:25:37,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:25:37,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:25:37,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:25:37,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:25:37,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:25:37,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:25:37,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:25:37,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:25:37,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:25:37,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:25:37,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:25:37,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:25:37,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:25:37,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:25:37,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:25:37,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:25:37,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:25:37,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:25:37,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:25:37,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:25:37,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:25:37,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:25:37,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:25:37,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:25:37,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:25:37,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:25:37,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:25:37,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:25:37,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:25:37,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:25:37,765 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:25:37,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:25:37,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:25:37,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:25:37,766 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:25:37,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:25:37,767 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:25:37,767 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:25:37,767 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:25:37,768 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:25:37,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:25:37,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:25:37,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:25:37,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:25:37,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:25:37,770 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:25:37,770 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:25:37,770 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:25:37,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:25:37,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:25:37,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:25:37,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:25:37,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:25:37,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:25:37,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:25:37,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:25:37,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:25:37,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:25:37,773 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:25:37,773 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:25:37,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:25:37,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:25:37,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:25:37,774 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_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1928632139fa770e6728c6d37f1b756676e5811f226db8d488914b16150b3c5e [2021-11-12 23:25:38,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:25:38,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:25:38,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:25:38,182 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:25:38,183 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:25:38,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-12 23:25:38,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/364be2423/bea6d109bad2430a800cfeda4cef36ed/FLAG93238fd6e [2021-11-12 23:25:39,242 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:25:39,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i [2021-11-12 23:25:39,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/364be2423/bea6d109bad2430a800cfeda4cef36ed/FLAG93238fd6e [2021-11-12 23:25:39,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/data/364be2423/bea6d109bad2430a800cfeda4cef36ed [2021-11-12 23:25:39,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:25:39,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:25:39,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:39,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:25:39,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:25:39,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:39" (1/1) ... [2021-11-12 23:25:39,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aec514e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:39, skipping insertion in model container [2021-11-12 23:25:39,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:39" (1/1) ... [2021-11-12 23:25:39,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:25:39,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:25:40,177 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-12 23:25:40,186 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-12 23:25:40,210 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:25:40,217 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:25:41,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:41,990 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:25:41,992 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:25:41,993 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:25:41,994 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:25:41,996 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:25:41,996 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:25:41,997 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:25:41,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:25:41,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:25:41,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:25:42,191 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:25:42,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:42,438 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:25:42,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:25:42,499 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-12 23:25:42,499 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-12 23:25:42,501 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:25:42,502 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:25:42,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,577 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:25:42,577 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:25:42,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:25:42,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:25:42,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:25:42,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:25:42,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:25:42,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:25:42,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:25:42,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:25:42,621 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:25:42,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:42,779 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:25:42,792 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4504,4517] [2021-11-12 23:25:42,793 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_638a4d29-88f8-409d-bba1-bad952270a26/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_nospec_harness.i[4564,4577] [2021-11-12 23:25:42,794 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:25:42,795 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:25:42,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:42,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:25:42,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:25:42,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:25:42,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:25:42,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:25:42,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:25:42,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:25:42,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:25:42,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:25:42,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:25:42,987 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:25:43,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:43,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:25:43,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:43,673 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:25:43,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43 WrapperNode [2021-11-12 23:25:43,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:43,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:25:43,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:25:43,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:25:43,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:43,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:43,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:25:43,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:25:43,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:25:43,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:25:43,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:43,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:43,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:43,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:44,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:44,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:44,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:44,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:25:44,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:25:44,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:25:44,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:25:44,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (1/1) ... [2021-11-12 23:25:44,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:25:44,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:25:44,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:25:44,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:25:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 23:25:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 23:25:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:25:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:25:44,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:25:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:25:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:25:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:25:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:25:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:25:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:25:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:25:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:25:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:25:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:25:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:25:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:25:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 23:25:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 23:25:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:25:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:25:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:25:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:25:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:25:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:25:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:25:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:25:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_advance_nospec [2021-11-12 23:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_advance_nospec [2021-11-12 23:26:00,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:26:00,059 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:26:00,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:26:00 BoogieIcfgContainer [2021-11-12 23:26:00,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:26:00,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:26:00,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:26:00,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:26:00,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:25:39" (1/3) ... [2021-11-12 23:26:00,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618edd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:26:00, skipping insertion in model container [2021-11-12 23:26:00,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:43" (2/3) ... [2021-11-12 23:26:00,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618edd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:26:00, skipping insertion in model container [2021-11-12 23:26:00,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:26:00" (3/3) ... [2021-11-12 23:26:00,069 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_nospec_harness.i [2021-11-12 23:26:00,075 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:26:00,075 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:26:00,125 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:26:00,131 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:26:00,131 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:26:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 63 states have (on average 1.253968253968254) internal successors, (79), 64 states have internal predecessors, (79), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-12 23:26:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:26:00,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:00,159 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:00,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:00,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:00,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1892197119, now seen corresponding path program 1 times [2021-11-12 23:26:00,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:00,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101578461] [2021-11-12 23:26:00,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:00,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:00,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:00,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:00,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:26:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:04,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:26:04,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:04,776 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 23:26:04,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:26:04,976 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:04,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101578461] [2021-11-12 23:26:04,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101578461] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:04,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:04,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:26:04,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883203794] [2021-11-12 23:26:04,984 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:04,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:26:04,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:05,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:26:05,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:26:05,030 INFO L87 Difference]: Start difference. First operand has 95 states, 63 states have (on average 1.253968253968254) internal successors, (79), 64 states have internal predecessors, (79), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:26:05,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:05,093 INFO L93 Difference]: Finished difference Result 180 states and 254 transitions. [2021-11-12 23:26:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:26:05,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2021-11-12 23:26:05,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:05,109 INFO L225 Difference]: With dead ends: 180 [2021-11-12 23:26:05,109 INFO L226 Difference]: Without dead ends: 85 [2021-11-12 23:26:05,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:26:05,124 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:05,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 4.18ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:26:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-12 23:26:05,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-12 23:26:05,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 57 states have internal predecessors, (67), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-12 23:26:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2021-11-12 23:26:05,202 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 49 [2021-11-12 23:26:05,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:05,204 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2021-11-12 23:26:05,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:26:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2021-11-12 23:26:05,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:26:05,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:05,209 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:05,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:05,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:05,424 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:05,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:05,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1656461437, now seen corresponding path program 1 times [2021-11-12 23:26:05,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:05,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707589257] [2021-11-12 23:26:05,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:05,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:05,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:05,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:05,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:26:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:09,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:26:09,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 23:26:10,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 23:26:10,466 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:10,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707589257] [2021-11-12 23:26:10,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707589257] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:26:10,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:26:10,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 23:26:10,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987817439] [2021-11-12 23:26:10,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:10,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:26:10,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:10,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:26:10,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:26:10,470 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-12 23:26:10,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:10,729 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2021-11-12 23:26:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:26:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2021-11-12 23:26:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:10,735 INFO L225 Difference]: With dead ends: 156 [2021-11-12 23:26:10,735 INFO L226 Difference]: Without dead ends: 88 [2021-11-12 23:26:10,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:26:10,737 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 35 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 210.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.05ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:10,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 343 Invalid, 45 Unknown, 0 Unchecked, 5.54ms Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 229.05ms Time] [2021-11-12 23:26:10,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-12 23:26:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-12 23:26:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 60 states have internal predecessors, (69), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2021-11-12 23:26:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 116 transitions. [2021-11-12 23:26:10,752 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 116 transitions. Word has length 49 [2021-11-12 23:26:10,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:10,752 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 116 transitions. [2021-11-12 23:26:10,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-12 23:26:10,753 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2021-11-12 23:26:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-12 23:26:10,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:10,755 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:10,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:10,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:10,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:10,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash -188721278, now seen corresponding path program 1 times [2021-11-12 23:26:10,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:10,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495085624] [2021-11-12 23:26:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:10,983 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:10,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:10,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:10,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:26:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:15,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:26:15,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:26:15,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 23:26:15,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:15,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495085624] [2021-11-12 23:26:15,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495085624] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:26:15,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:26:15,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2021-11-12 23:26:15,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785990638] [2021-11-12 23:26:15,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:15,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:26:15,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:15,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:26:15,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:26:15,987 INFO L87 Difference]: Start difference. First operand 88 states and 116 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-12 23:26:18,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:26:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:18,418 INFO L93 Difference]: Finished difference Result 157 states and 211 transitions. [2021-11-12 23:26:18,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:26:18,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2021-11-12 23:26:18,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:18,423 INFO L225 Difference]: With dead ends: 157 [2021-11-12 23:26:18,424 INFO L226 Difference]: Without dead ends: 96 [2021-11-12 23:26:18,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:26:18,426 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 49 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2313.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.16ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2383.41ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:18,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 463 Invalid, 83 Unknown, 0 Unchecked, 5.16ms Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 1 Unknown, 0 Unchecked, 2383.41ms Time] [2021-11-12 23:26:18,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-12 23:26:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2021-11-12 23:26:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 61 states have internal predecessors, (69), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 20 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-12 23:26:18,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2021-11-12 23:26:18,443 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 51 [2021-11-12 23:26:18,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:18,443 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2021-11-12 23:26:18,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-12 23:26:18,444 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2021-11-12 23:26:18,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-12 23:26:18,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:18,447 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:18,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:18,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:18,660 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:18,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:18,661 INFO L85 PathProgramCache]: Analyzing trace with hash 337499291, now seen corresponding path program 1 times [2021-11-12 23:26:18,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:18,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059686100] [2021-11-12 23:26:18,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:18,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:18,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:18,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:18,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:26:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:23,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:26:23,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 23:26:23,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:26:23,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:23,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059686100] [2021-11-12 23:26:23,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059686100] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:23,322 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:23,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:26:23,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412869129] [2021-11-12 23:26:23,322 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:23,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:26:23,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:23,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:26:23,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:23,323 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:26:23,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:23,459 INFO L93 Difference]: Finished difference Result 143 states and 190 transitions. [2021-11-12 23:26:23,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:23,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2021-11-12 23:26:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:23,464 INFO L225 Difference]: With dead ends: 143 [2021-11-12 23:26:23,465 INFO L226 Difference]: Without dead ends: 90 [2021-11-12 23:26:23,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:23,466 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:23,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 5 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 127.24ms Time] [2021-11-12 23:26:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-12 23:26:23,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-12 23:26:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.206896551724138) internal successors, (70), 62 states have internal predecessors, (70), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 20 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-12 23:26:23,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2021-11-12 23:26:23,485 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 54 [2021-11-12 23:26:23,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:23,485 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2021-11-12 23:26:23,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:26:23,486 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2021-11-12 23:26:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-12 23:26:23,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:23,494 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:23,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:23,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:23,711 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:23,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:23,712 INFO L85 PathProgramCache]: Analyzing trace with hash 924305305, now seen corresponding path program 1 times [2021-11-12 23:26:23,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:23,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395710060] [2021-11-12 23:26:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:23,718 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:23,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:23,719 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:23,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:26:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:28,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:26:28,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-12 23:26:28,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-12 23:26:28,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:28,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395710060] [2021-11-12 23:26:28,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395710060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:28,793 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:28,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-12 23:26:28,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182847308] [2021-11-12 23:26:28,794 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:28,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:26:28,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:28,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:26:28,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:26:28,795 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-12 23:26:31,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:26:31,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:31,195 INFO L93 Difference]: Finished difference Result 148 states and 196 transitions. [2021-11-12 23:26:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:26:31,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2021-11-12 23:26:31,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:31,200 INFO L225 Difference]: With dead ends: 148 [2021-11-12 23:26:31,201 INFO L226 Difference]: Without dead ends: 97 [2021-11-12 23:26:31,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:26:31,202 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 46 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2297.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.84ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2359.70ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:31,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 457 Invalid, 74 Unknown, 0 Unchecked, 3.84ms Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2359.70ms Time] [2021-11-12 23:26:31,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-12 23:26:31,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2021-11-12 23:26:31,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.206896551724138) internal successors, (70), 61 states have internal predecessors, (70), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-12 23:26:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2021-11-12 23:26:31,215 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 54 [2021-11-12 23:26:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:31,216 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2021-11-12 23:26:31,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-12 23:26:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2021-11-12 23:26:31,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:26:31,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:31,219 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:31,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:31,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:31,432 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:31,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash 976100300, now seen corresponding path program 1 times [2021-11-12 23:26:31,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:31,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862079567] [2021-11-12 23:26:31,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:31,436 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:31,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:31,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:31,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:26:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:35,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:26:35,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:26:35,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:26:36,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:36,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862079567] [2021-11-12 23:26:36,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862079567] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:36,269 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:36,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-12 23:26:36,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611392113] [2021-11-12 23:26:36,269 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:36,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:26:36,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:36,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:26:36,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:36,271 INFO L87 Difference]: Start difference. First operand 89 states and 115 transitions. Second operand has 12 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-12 23:26:36,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:36,604 INFO L93 Difference]: Finished difference Result 101 states and 131 transitions. [2021-11-12 23:26:36,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:26:36,605 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2021-11-12 23:26:36,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:36,607 INFO L225 Difference]: With dead ends: 101 [2021-11-12 23:26:36,607 INFO L226 Difference]: Without dead ends: 99 [2021-11-12 23:26:36,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:26:36,609 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 17 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 217.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.15ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 234.96ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:36,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 1054 Invalid, 80 Unknown, 0 Unchecked, 7.15ms Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 234.96ms Time] [2021-11-12 23:26:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-12 23:26:36,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2021-11-12 23:26:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.1875) internal successors, (76), 68 states have internal predecessors, (76), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (28), 21 states have call predecessors, (28), 21 states have call successors, (28) [2021-11-12 23:26:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 128 transitions. [2021-11-12 23:26:36,623 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 128 transitions. Word has length 55 [2021-11-12 23:26:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:36,623 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 128 transitions. [2021-11-12 23:26:36,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-12 23:26:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 128 transitions. [2021-11-12 23:26:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-12 23:26:36,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:36,626 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:36,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:36,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:36,852 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:26:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:36,853 INFO L85 PathProgramCache]: Analyzing trace with hash 534031188, now seen corresponding path program 1 times [2021-11-12 23:26:36,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:36,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676790509] [2021-11-12 23:26:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:36,856 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:36,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:36,857 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:36,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638a4d29-88f8-409d-bba1-bad952270a26/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:27:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:09,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-12 23:27:09,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:11,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,763 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:27:11,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 119 treesize of output 128 [2021-11-12 23:27:11,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,828 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,832 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,850 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:27:11,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:27:12,053 INFO L354 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2021-11-12 23:27:12,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 38 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 152 [2021-11-12 23:27:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:27:13,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:15,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:27:15,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 511 [2021-11-12 23:27:17,314 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_1 (_ BitVec 8)) (|aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base|) (bvadd (_ bv8 64) |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) v_DerPreprocessor_1) |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv6 64)) ((_ extract 55 48) (_ bv0 64))) (bvadd |c_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv7 64)) ((_ extract 63 56) (_ bv0 64)))) |c_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd (_ bv2 64) |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd (_ bv1 64) |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))))) is different from false [2021-11-12 23:27:19,422 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_1 (_ BitVec 8)) (|aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base|) (_ bv8 64) v_DerPreprocessor_1) (_ bv0 64) ((_ extract 7 0) (_ bv0 64))) (_ bv1 64) ((_ extract 15 8) (_ bv0 64))) (_ bv2 64) ((_ extract 23 16) (_ bv0 64))) (_ bv3 64) ((_ extract 31 24) (_ bv0 64))) (_ bv4 64) ((_ extract 39 32) (_ bv0 64))) (_ bv5 64) ((_ extract 47 40) (_ bv0 64))) (_ bv6 64) ((_ extract 55 48) (_ bv0 64))) (_ bv7 64) ((_ extract 63 56) (_ bv0 64)))) |c_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd (_ bv2 64) |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd (_ bv1 64) |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 |c_aws_byte_cursor_advance_nospec_~cursor#1.offset|))))) is different from false [2021-11-12 23:27:21,528 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_1 (_ BitVec 8)) (|aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base|) (_ bv8 64) v_DerPreprocessor_1) (_ bv0 64) ((_ extract 7 0) (_ bv0 64))) (_ bv1 64) ((_ extract 15 8) (_ bv0 64))) (_ bv2 64) ((_ extract 23 16) (_ bv0 64))) (_ bv3 64) ((_ extract 31 24) (_ bv0 64))) (_ bv4 64) ((_ extract 39 32) (_ bv0 64))) (_ bv5 64) ((_ extract 47 40) (_ bv0 64))) (_ bv6 64) ((_ extract 55 48) (_ bv0 64))) (_ bv7 64) ((_ extract 63 56) (_ bv0 64)))) |c_aws_byte_cursor_advance_nospec_#in~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_advance_nospec_#in~cursor#1.offset|))))) is different from false [2021-11-12 23:27:23,578 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_1 (_ BitVec 8)) (|aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |aws_byte_cursor_advance_nospec_~#rv~7#1.base|) (_ bv8 64) v_DerPreprocessor_1) (_ bv0 64) ((_ extract 7 0) (_ bv0 64))) (_ bv1 64) ((_ extract 15 8) (_ bv0 64))) (_ bv2 64) ((_ extract 23 16) (_ bv0 64))) (_ bv3 64) ((_ extract 31 24) (_ bv0 64))) (_ bv4 64) ((_ extract 39 32) (_ bv0 64))) (_ bv5 64) ((_ extract 47 40) (_ bv0 64))) (_ bv6 64) ((_ extract 55 48) (_ bv0 64))) (_ bv7 64) ((_ extract 63 56) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset|))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset| (_ bv1 64)))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_advance_nospec_harness_~#cursor~2#1.offset|))))) is different from false