./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.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_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/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_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/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_e14c048a-9846-49ae-a6ca-773232f128ac/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 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:41:08,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:41:08,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:41:08,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:41:08,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:41:08,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:41:08,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:41:08,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:41:08,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:41:08,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:41:08,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:41:08,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:41:08,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:41:08,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:41:08,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:41:08,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:41:08,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:41:08,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:41:08,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:41:08,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:41:08,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:41:08,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:41:08,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:41:08,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:41:08,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:41:08,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:41:08,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:41:08,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:41:08,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:41:08,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:41:08,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:41:08,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:41:08,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:41:08,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:41:08,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:41:08,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:41:08,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:41:08,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:41:08,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:41:08,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:41:08,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:41:08,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:41:08,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:41:08,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:41:08,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:41:08,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:41:08,191 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:41:08,191 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:41:08,191 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:41:08,191 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:41:08,192 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:41:08,192 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:41:08,192 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:41:08,192 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:41:08,193 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:41:08,193 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:41:08,193 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:41:08,193 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:41:08,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:41:08,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:41:08,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:41:08,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:41:08,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:41:08,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:41:08,196 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:41:08,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:41:08,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:41:08,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:41:08,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:41:08,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:41:08,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:08,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:41:08,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:41:08,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:41:08,198 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:41:08,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:41:08,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:41:08,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:41:08,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:41:08,199 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_e14c048a-9846-49ae-a6ca-773232f128ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce [2021-11-13 02:41:08,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:41:08,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:41:08,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:41:08,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:41:08,572 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:41:08,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-13 02:41:08,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/b1aa99ce3/7990814ee5e649f690d5a64dd4e9df99/FLAG5f875c4df [2021-11-13 02:41:09,670 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:41:09,671 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-13 02:41:09,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/b1aa99ce3/7990814ee5e649f690d5a64dd4e9df99/FLAG5f875c4df [2021-11-13 02:41:10,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/b1aa99ce3/7990814ee5e649f690d5a64dd4e9df99 [2021-11-13 02:41:10,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:41:10,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:41:10,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:10,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:41:10,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:41:10,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:10" (1/1) ... [2021-11-13 02:41:10,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79352ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:10, skipping insertion in model container [2021-11-13 02:41:10,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:10" (1/1) ... [2021-11-13 02:41:10,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:41:10,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:10,588 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-13 02:41:10,599 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-13 02:41:10,640 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:41:10,650 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:41:11,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:11,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:12,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:41:12,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:41:12,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:41:12,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:41:12,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:41:12,540 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:41:12,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:41:12,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:41:12,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:41:12,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:41:12,832 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:41:12,966 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:12,967 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:13,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:13,155 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 02:41:13,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b83d580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:13, skipping insertion in model container [2021-11-13 02:41:13,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:13,159 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:41:13,161 INFO L158 Benchmark]: Toolchain (without parser) took 3149.03ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 68.0MB in the beginning and 72.6MB in the end (delta: -4.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2021-11-13 02:41:13,162 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 94.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:41:13,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3146.18ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 67.8MB in the beginning and 72.6MB in the end (delta: -4.8MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2021-11-13 02:41:13,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 94.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3146.18ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 67.8MB in the beginning and 72.6MB in the end (delta: -4.8MB). Peak memory consumption was 35.8MB. 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_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/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_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/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_e14c048a-9846-49ae-a6ca-773232f128ac/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 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:41:16,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:41:16,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:41:16,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:41:16,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:41:16,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:41:16,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:41:16,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:41:16,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:41:16,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:41:16,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:41:16,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:41:16,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:41:16,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:41:16,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:41:16,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:41:16,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:41:16,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:41:16,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:41:16,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:41:16,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:41:16,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:41:16,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:41:16,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:41:16,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:41:16,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:41:16,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:41:16,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:41:16,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:41:16,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:41:16,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:41:16,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:41:16,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:41:16,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:41:16,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:41:16,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:41:16,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:41:16,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:41:16,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:41:16,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:41:16,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:41:16,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:41:16,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:41:16,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:41:16,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:41:16,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:41:16,286 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:41:16,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:41:16,287 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:41:16,287 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:41:16,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:41:16,287 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:41:16,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:41:16,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:41:16,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:41:16,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:41:16,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:41:16,290 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:41:16,290 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:41:16,291 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:41:16,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:41:16,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:41:16,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:41:16,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:41:16,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:41:16,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:41:16,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:16,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:41:16,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:41:16,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:41:16,294 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:41:16,294 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:16,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:41:16,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:41:16,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:41:16,296 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_e14c048a-9846-49ae-a6ca-773232f128ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce [2021-11-13 02:41:16,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:41:16,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:41:16,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:41:16,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:41:16,815 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:41:16,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-13 02:41:16,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/12bf1e89f/ec14443a7d804160a10e78334738aed9/FLAGcb8c333b4 [2021-11-13 02:41:18,337 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:41:18,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-13 02:41:18,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/12bf1e89f/ec14443a7d804160a10e78334738aed9/FLAGcb8c333b4 [2021-11-13 02:41:18,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/data/12bf1e89f/ec14443a7d804160a10e78334738aed9 [2021-11-13 02:41:18,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:41:18,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:41:18,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:18,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:41:18,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:41:18,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:18" (1/1) ... [2021-11-13 02:41:18,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5bc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:18, skipping insertion in model container [2021-11-13 02:41:18,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:18" (1/1) ... [2021-11-13 02:41:18,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:41:18,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:19,050 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-13 02:41:19,064 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-13 02:41:19,110 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:41:19,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:41:20,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,459 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:20,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:21,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:41:21,103 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:41:21,105 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:41:21,107 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:41:21,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:41:21,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:41:21,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:41:21,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:41:21,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:41:21,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:41:21,388 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:41:21,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:21,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:21,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:21,725 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:41:21,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:21,878 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-13 02:41:21,885 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-13 02:41:21,888 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:41:21,893 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:41:21,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:21,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:21,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:21,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:21,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,026 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:41:22,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:41:22,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:41:22,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:41:22,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:41:22,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:41:22,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:41:22,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:41:22,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:41:22,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:41:22,184 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:41:22,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:22,359 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:41:22,419 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-13 02:41:22,419 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_e14c048a-9846-49ae-a6ca-773232f128ac/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-13 02:41:22,421 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:41:22,422 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:41:22,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:41:22,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:41:22,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:41:22,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:41:22,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:41:22,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:41:22,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:41:22,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:41:22,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:41:22,550 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:41:22,580 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:41:22,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:41:22,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:23,184 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:41:23,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23 WrapperNode [2021-11-13 02:41:23,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:23,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:23,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:41:23,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:41:23,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:23,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:41:23,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:41:23,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:41:23,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:41:23,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:41:23,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:41:23,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:41:23,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (1/1) ... [2021-11-13 02:41:23,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:23,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:23,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:41:23,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:41:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2021-11-13 02:41:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2021-11-13 02:41:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:41:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 02:41:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 02:41:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:41:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:41:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:41:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:41:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:41:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-13 02:41:23,822 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-13 02:41:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:41:23,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:41:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 02:41:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 02:41:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:41:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-13 02:41:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-13 02:41:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:41:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-13 02:41:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-13 02:41:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 02:41:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 02:41:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:41:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:41:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:41:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:41:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 02:41:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 02:41:39,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:41:39,984 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 02:41:39,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:39 BoogieIcfgContainer [2021-11-13 02:41:39,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:41:39,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:41:39,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:41:39,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:41:39,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:41:18" (1/3) ... [2021-11-13 02:41:39,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f23e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:39, skipping insertion in model container [2021-11-13 02:41:40,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:23" (2/3) ... [2021-11-13 02:41:40,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f23e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:40, skipping insertion in model container [2021-11-13 02:41:40,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:39" (3/3) ... [2021-11-13 02:41:40,008 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_harness-1.i [2021-11-13 02:41:40,014 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:41:40,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:41:40,086 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:41:40,093 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:41:40,094 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:41:40,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 63 states have internal predecessors, (77), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-13 02:41:40,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 02:41:40,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:40,131 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:40,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:40,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:40,138 INFO L85 PathProgramCache]: Analyzing trace with hash -725279613, now seen corresponding path program 1 times [2021-11-13 02:41:40,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:40,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359607025] [2021-11-13 02:41:40,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:40,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:40,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:40,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:40,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:41:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:44,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:41:44,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-13 02:41:45,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-13 02:41:45,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:45,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359607025] [2021-11-13 02:41:45,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359607025] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:41:45,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:41:45,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-13 02:41:45,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907593293] [2021-11-13 02:41:45,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:45,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:41:45,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:41:45,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:41:45,585 INFO L87 Difference]: Start difference. First operand has 97 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 63 states have internal predecessors, (77), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 02:41:45,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:45,669 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2021-11-13 02:41:45,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:41:45,673 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 68 [2021-11-13 02:41:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:45,692 INFO L225 Difference]: With dead ends: 191 [2021-11-13 02:41:45,692 INFO L226 Difference]: Without dead ends: 92 [2021-11-13 02:41:45,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:41:45,707 INFO L933 BasicCegarLoop]: 126 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, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:45,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 4.89ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:41:45,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-13 02:41:45,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-13 02:41:45,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 58 states have internal predecessors, (69), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 02:41:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2021-11-13 02:41:45,776 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 120 transitions. Word has length 68 [2021-11-13 02:41:45,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:45,777 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 120 transitions. [2021-11-13 02:41:45,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 02:41:45,778 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 120 transitions. [2021-11-13 02:41:45,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 02:41:45,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:45,784 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:45,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:45,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:45,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:45,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1097524929, now seen corresponding path program 1 times [2021-11-13 02:41:46,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:46,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163275733] [2021-11-13 02:41:46,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:46,011 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:46,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:46,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:46,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:41:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:51,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:41:51,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 02:41:51,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-13 02:41:51,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:51,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163275733] [2021-11-13 02:41:51,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163275733] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:51,959 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:51,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 02:41:51,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765883391] [2021-11-13 02:41:51,960 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:51,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:41:51,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:41:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:41:51,965 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-13 02:41:52,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:52,101 INFO L93 Difference]: Finished difference Result 174 states and 235 transitions. [2021-11-13 02:41:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:41:52,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 68 [2021-11-13 02:41:52,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:52,111 INFO L225 Difference]: With dead ends: 174 [2021-11-13 02:41:52,111 INFO L226 Difference]: Without dead ends: 116 [2021-11-13 02:41:52,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:41:52,121 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 15 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.74ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.41ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:52,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 368 Invalid, 13 Unknown, 0 Unchecked, 9.74ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 74.41ms Time] [2021-11-13 02:41:52,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-13 02:41:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 95. [2021-11-13 02:41:52,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 60 states have internal predecessors, (71), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-13 02:41:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 124 transitions. [2021-11-13 02:41:52,150 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 124 transitions. Word has length 68 [2021-11-13 02:41:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:52,151 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 124 transitions. [2021-11-13 02:41:52,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-13 02:41:52,151 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 124 transitions. [2021-11-13 02:41:52,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-13 02:41:52,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:52,155 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:52,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:52,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:52,382 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:52,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:52,383 INFO L85 PathProgramCache]: Analyzing trace with hash -747842237, now seen corresponding path program 1 times [2021-11-13 02:41:52,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:52,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185755433] [2021-11-13 02:41:52,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:52,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:52,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:52,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:52,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:41:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:57,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 02:41:57,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-13 02:41:57,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-13 02:41:58,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:58,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185755433] [2021-11-13 02:41:58,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185755433] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:41:58,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:41:58,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-13 02:41:58,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930573881] [2021-11-13 02:41:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:58,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:41:58,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:41:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:41:58,418 INFO L87 Difference]: Start difference. First operand 95 states and 124 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-13 02:41:58,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:58,844 INFO L93 Difference]: Finished difference Result 146 states and 191 transitions. [2021-11-13 02:41:58,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:41:58,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 68 [2021-11-13 02:41:58,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:58,848 INFO L225 Difference]: With dead ends: 146 [2021-11-13 02:41:58,848 INFO L226 Difference]: Without dead ends: 92 [2021-11-13 02:41:58,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:41:58,851 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 2 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 320.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.25ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 358.05ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:58,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 513 Invalid, 93 Unknown, 0 Unchecked, 7.25ms Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 358.05ms Time] [2021-11-13 02:41:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-13 02:41:58,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-13 02:41:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 58 states have internal predecessors, (67), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-13 02:41:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2021-11-13 02:41:58,867 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 68 [2021-11-13 02:41:58,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:58,868 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2021-11-13 02:41:58,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-13 02:41:58,868 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2021-11-13 02:41:58,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-13 02:41:58,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:58,871 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:58,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:59,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:59,086 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:59,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:59,087 INFO L85 PathProgramCache]: Analyzing trace with hash -364789251, now seen corresponding path program 1 times [2021-11-13 02:41:59,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:59,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598225956] [2021-11-13 02:41:59,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:59,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:59,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:59,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:59,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:42:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:03,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:42:03,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-11-13 02:42:04,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-11-13 02:42:04,452 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:04,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598225956] [2021-11-13 02:42:04,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598225956] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:04,453 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:42:04,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 02:42:04,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092411838] [2021-11-13 02:42:04,453 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:04,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:42:04,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:04,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:42:04,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:42:04,455 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-13 02:42:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:04,483 INFO L93 Difference]: Finished difference Result 129 states and 163 transitions. [2021-11-13 02:42:04,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:42:04,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 96 [2021-11-13 02:42:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:04,488 INFO L225 Difference]: With dead ends: 129 [2021-11-13 02:42:04,488 INFO L226 Difference]: Without dead ends: 95 [2021-11-13 02:42:04,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:42:04,490 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.27ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.46ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:04,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 346 Invalid, 7 Unknown, 0 Unchecked, 2.27ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 18.46ms Time] [2021-11-13 02:42:04,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-13 02:42:04,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-13 02:42:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 60 states have internal predecessors, (69), 26 states have call successors, (26), 9 states have call predecessors, (26), 10 states have return successors, (26), 26 states have call predecessors, (26), 25 states have call successors, (26) [2021-11-13 02:42:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 121 transitions. [2021-11-13 02:42:04,505 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 121 transitions. Word has length 96 [2021-11-13 02:42:04,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:04,506 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 121 transitions. [2021-11-13 02:42:04,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-13 02:42:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 121 transitions. [2021-11-13 02:42:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-13 02:42:04,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:04,509 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:04,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:04,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:04,710 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:42:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:04,711 INFO L85 PathProgramCache]: Analyzing trace with hash 946196880, now seen corresponding path program 1 times [2021-11-13 02:42:04,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:04,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110271861] [2021-11-13 02:42:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:04,717 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:04,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:04,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:04,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:42:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:09,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:42:09,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-13 02:42:10,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:42:11,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:11,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110271861] [2021-11-13 02:42:11,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110271861] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:11,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [454067221] [2021-11-13 02:42:11,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:11,862 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:42:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:42:11,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:42:11,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-13 02:42:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:19,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-13 02:42:19,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:42:20,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:42:21,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [454067221] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:21,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053177897] [2021-11-13 02:42:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:21,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:42:21,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:42:21,298 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:42:21,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 02:42:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:22,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-13 02:42:22,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:42:23,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:42:24,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053177897] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:24,382 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:42:24,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12, 12, 12, 12] total 21 [2021-11-13 02:42:24,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213818934] [2021-11-13 02:42:24,383 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:42:24,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-13 02:42:24,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-13 02:42:24,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-13 02:42:24,386 INFO L87 Difference]: Start difference. First operand 95 states and 121 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 15 states have internal predecessors, (63), 10 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (40), 13 states have call predecessors, (40), 9 states have call successors, (40) [2021-11-13 02:42:26,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:26,070 INFO L93 Difference]: Finished difference Result 171 states and 226 transitions. [2021-11-13 02:42:26,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 02:42:26,070 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 15 states have internal predecessors, (63), 10 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (40), 13 states have call predecessors, (40), 9 states have call successors, (40) Word has length 96 [2021-11-13 02:42:26,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:26,075 INFO L225 Difference]: With dead ends: 171 [2021-11-13 02:42:26,075 INFO L226 Difference]: Without dead ends: 136 [2021-11-13 02:42:26,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2021-11-13 02:42:26,077 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 93 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1169.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.76ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1329.88ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:26,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 1197 Invalid, 464 Unknown, 0 Unchecked, 12.76ms Time], IncrementalHoareTripleChecker [47 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1329.88ms Time] [2021-11-13 02:42:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-13 02:42:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 126. [2021-11-13 02:42:26,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 37 states have call successors, (37), 9 states have call predecessors, (37), 12 states have return successors, (40), 39 states have call predecessors, (40), 36 states have call successors, (40) [2021-11-13 02:42:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 166 transitions. [2021-11-13 02:42:26,097 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 166 transitions. Word has length 96 [2021-11-13 02:42:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:26,098 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 166 transitions. [2021-11-13 02:42:26,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 15 states have internal predecessors, (63), 10 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (40), 13 states have call predecessors, (40), 9 states have call successors, (40) [2021-11-13 02:42:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 166 transitions. [2021-11-13 02:42:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-13 02:42:26,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:26,102 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:26,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-13 02:42:26,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:26,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:26,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:26,716 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:42:26,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1827604963, now seen corresponding path program 1 times [2021-11-13 02:42:26,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:26,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766905028] [2021-11-13 02:42:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:26,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:26,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:26,721 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:26,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:42:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:31,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 02:42:31,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-13 02:42:32,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-13 02:42:34,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:34,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766905028] [2021-11-13 02:42:34,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766905028] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:34,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [807082205] [2021-11-13 02:42:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:34,958 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:42:34,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:42:34,958 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:42:34,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-13 02:42:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:43,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:42:43,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:44,054 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-13 02:42:44,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-13 02:42:45,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [807082205] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:45,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562503228] [2021-11-13 02:42:45,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:45,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:42:45,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:42:45,267 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:42:45,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-13 02:42:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:46,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:42:46,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:47,357 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-13 02:42:47,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-13 02:42:48,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562503228] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:48,578 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:42:48,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 15, 15, 15, 15] total 29 [2021-11-13 02:42:48,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342684113] [2021-11-13 02:42:48,579 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:42:48,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-13 02:42:48,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:48,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-13 02:42:48,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2021-11-13 02:42:48,582 INFO L87 Difference]: Start difference. First operand 126 states and 166 transitions. Second operand has 29 states, 25 states have (on average 2.72) internal successors, (68), 24 states have internal predecessors, (68), 13 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (39), 14 states have call predecessors, (39), 12 states have call successors, (39) [2021-11-13 02:42:52,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:52,464 INFO L93 Difference]: Finished difference Result 188 states and 254 transitions. [2021-11-13 02:42:52,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 02:42:52,465 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 2.72) internal successors, (68), 24 states have internal predecessors, (68), 13 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (39), 14 states have call predecessors, (39), 12 states have call successors, (39) Word has length 107 [2021-11-13 02:42:52,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:52,468 INFO L225 Difference]: With dead ends: 188 [2021-11-13 02:42:52,468 INFO L226 Difference]: Without dead ends: 152 [2021-11-13 02:42:52,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2021-11-13 02:42:52,470 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 124 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3021.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.00ms SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3341.60ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:52,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 2187 Invalid, 1042 Unknown, 0 Unchecked, 19.00ms Time], IncrementalHoareTripleChecker [77 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 3341.60ms Time] [2021-11-13 02:42:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-13 02:42:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 128. [2021-11-13 02:42:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 80 states have internal predecessors, (90), 37 states have call successors, (37), 9 states have call predecessors, (37), 13 states have return successors, (44), 39 states have call predecessors, (44), 36 states have call successors, (44) [2021-11-13 02:42:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2021-11-13 02:42:52,491 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 107 [2021-11-13 02:42:52,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:52,492 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2021-11-13 02:42:52,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 2.72) internal successors, (68), 24 states have internal predecessors, (68), 13 states have call successors, (37), 2 states have call predecessors, (37), 7 states have return successors, (39), 14 states have call predecessors, (39), 12 states have call successors, (39) [2021-11-13 02:42:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2021-11-13 02:42:52,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-13 02:42:52,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:52,495 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:52,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:52,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-13 02:42:52,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:53,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:42:53,118 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:42:53,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:53,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2137451966, now seen corresponding path program 1 times [2021-11-13 02:42:53,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:53,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203105155] [2021-11-13 02:42:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:53,122 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:53,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:53,123 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:53,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 02:42:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:56,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:42:56,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-11-13 02:42:57,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-11-13 02:42:58,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:58,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203105155] [2021-11-13 02:42:58,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203105155] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:58,442 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:42:58,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 13 [2021-11-13 02:42:58,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043958772] [2021-11-13 02:42:58,442 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:58,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 02:42:58,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:58,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 02:42:58,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-13 02:42:58,444 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 6 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2021-11-13 02:42:59,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:59,400 INFO L93 Difference]: Finished difference Result 168 states and 232 transitions. [2021-11-13 02:42:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 02:42:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 6 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 101 [2021-11-13 02:42:59,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:59,403 INFO L225 Difference]: With dead ends: 168 [2021-11-13 02:42:59,403 INFO L226 Difference]: Without dead ends: 151 [2021-11-13 02:42:59,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2021-11-13 02:42:59,404 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 96 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 576.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.47ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 643.70ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:59,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1161 Invalid, 195 Unknown, 0 Unchecked, 8.47ms Time], IncrementalHoareTripleChecker [70 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 643.70ms Time] [2021-11-13 02:42:59,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-13 02:42:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-11-13 02:42:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 89 states have internal predecessors, (102), 50 states have call successors, (50), 9 states have call predecessors, (50), 13 states have return successors, (57), 53 states have call predecessors, (57), 47 states have call successors, (57) [2021-11-13 02:42:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 209 transitions. [2021-11-13 02:42:59,424 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 209 transitions. Word has length 101 [2021-11-13 02:42:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:59,425 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 209 transitions. [2021-11-13 02:42:59,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 6 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2021-11-13 02:42:59,426 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 209 transitions. [2021-11-13 02:42:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-13 02:42:59,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:59,428 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:59,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-13 02:42:59,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:59,650 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:42:59,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:59,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1452523894, now seen corresponding path program 1 times [2021-11-13 02:42:59,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:59,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750581402] [2021-11-13 02:42:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:59,655 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:59,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:59,657 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:59,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 02:43:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:03,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 02:43:03,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-13 02:43:04,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:43:06,700 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:43:06,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750581402] [2021-11-13 02:43:06,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750581402] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:43:06,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2107933569] [2021-11-13 02:43:06,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:06,701 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:43:06,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:43:06,702 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:43:06,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-13 02:43:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:14,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 02:43:14,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:43:15,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:43:18,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2107933569] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:43:18,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476205256] [2021-11-13 02:43:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:18,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:43:18,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:43:18,039 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:43:18,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-13 02:43:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:19,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 02:43:19,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:43:20,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:43:21,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476205256] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:43:21,375 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:43:21,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14, 14, 14, 14] total 31 [2021-11-13 02:43:21,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373873163] [2021-11-13 02:43:21,376 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:43:21,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-13 02:43:21,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:43:21,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-13 02:43:21,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2021-11-13 02:43:21,378 INFO L87 Difference]: Start difference. First operand 151 states and 209 transitions. Second operand has 31 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 24 states have internal predecessors, (85), 12 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (45), 15 states have call predecessors, (45), 11 states have call successors, (45) [2021-11-13 02:43:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:43:25,111 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2021-11-13 02:43:25,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 02:43:25,112 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 24 states have internal predecessors, (85), 12 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (45), 15 states have call predecessors, (45), 11 states have call successors, (45) Word has length 100 [2021-11-13 02:43:25,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:43:25,115 INFO L225 Difference]: With dead ends: 206 [2021-11-13 02:43:25,115 INFO L226 Difference]: Without dead ends: 186 [2021-11-13 02:43:25,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 564 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=177, Invalid=1155, Unknown=0, NotChecked=0, Total=1332 [2021-11-13 02:43:25,117 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 162 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2623.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.45ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2882.14ms IncrementalHoareTripleChecker+Time [2021-11-13 02:43:25,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 1490 Invalid, 668 Unknown, 0 Unchecked, 35.45ms Time], IncrementalHoareTripleChecker [54 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 2882.14ms Time] [2021-11-13 02:43:25,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-11-13 02:43:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 167. [2021-11-13 02:43:25,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 95 states have (on average 1.1894736842105262) internal successors, (113), 98 states have internal predecessors, (113), 57 states have call successors, (57), 9 states have call predecessors, (57), 14 states have return successors, (70), 60 states have call predecessors, (70), 54 states have call successors, (70) [2021-11-13 02:43:25,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 240 transitions. [2021-11-13 02:43:25,144 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 240 transitions. Word has length 100 [2021-11-13 02:43:25,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:43:25,145 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 240 transitions. [2021-11-13 02:43:25,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 24 states have internal predecessors, (85), 12 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (45), 15 states have call predecessors, (45), 11 states have call successors, (45) [2021-11-13 02:43:25,145 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 240 transitions. [2021-11-13 02:43:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-13 02:43:25,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:43:25,148 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:43:25,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-13 02:43:25,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-13 02:43:25,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-13 02:43:25,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:43:25,762 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:43:25,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:43:25,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1754580795, now seen corresponding path program 1 times [2021-11-13 02:43:25,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:43:25,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282952369] [2021-11-13 02:43:25,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:25,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:43:25,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:43:25,768 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:43:25,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e14c048a-9846-49ae-a6ca-773232f128ac/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 02:44:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:44:34,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1884 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-13 02:44:34,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:44:34,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:44:34,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2021-11-13 02:44:41,456 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1| (_ BitVec 64)) (|v_save_byte_from_array_#in~storage#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|save_byte_from_array_nondet_size_t_#res#1| (_ BitVec 64))) (let ((.cse0 (select |c_#memory_int| |v_save_byte_from_array_#in~storage#1.base_BEFORE_CALL_1|))) (and (= ((_ extract 39 32) |save_byte_from_array_nondet_size_t_#res#1|) (select .cse0 (bvadd (_ bv4 64) |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1|))) (= (select .cse0 (bvadd (_ bv1 64) |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1|)) ((_ extract 15 8) |save_byte_from_array_nondet_size_t_#res#1|)) (= ((_ extract 31 24) |save_byte_from_array_nondet_size_t_#res#1|) (select .cse0 (bvadd (_ bv3 64) |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1|))) (= ((_ extract 7 0) |save_byte_from_array_nondet_size_t_#res#1|) (select .cse0 |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1|)) (= ((_ extract 55 48) |save_byte_from_array_nondet_size_t_#res#1|) (select .cse0 (bvadd |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1| (_ bv6 64)))) (= (select .cse0 (bvadd (_ bv2 64) |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1|)) ((_ extract 23 16) |save_byte_from_array_nondet_size_t_#res#1|)) (= (select .cse0 (bvadd |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1| (_ bv5 64))) ((_ extract 47 40) |save_byte_from_array_nondet_size_t_#res#1|)) (= (select .cse0 (bvadd |v_save_byte_from_array_#in~storage#1.offset_BEFORE_CALL_1| (_ bv7 64))) ((_ extract 63 56) |save_byte_from_array_nondet_size_t_#res#1|))))) is different from true [2021-11-13 02:46:18,117 WARN L227 SmtUtils]: Spent 1.46m on a formula simplification. DAG size of input: 242 DAG size of output: 71 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 02:46:18,118 INFO L354 Elim1Store]: treesize reduction 592, result has 20.0 percent of original size [2021-11-13 02:46:18,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 158 treesize of output 208 [2021-11-13 02:53:40,452 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4| (_ BitVec 64)) (|#StackHeapBarrier| (_ BitVec 64)) (|save_byte_from_array_nondet_size_t_#res#1| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_11| (_ BitVec 64))) (let ((.cse2 (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4|))) (let ((.cse4 ((_ extract 47 40) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse1 ((_ extract 39 32) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse3 (select .cse2 (_ bv3 64))) (.cse0 (select .cse2 (_ bv0 64))) (.cse8 (select .cse2 (_ bv1 64))) (.cse7 (select .cse2 (_ bv2 64))) (.cse6 ((_ extract 55 48) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse5 ((_ extract 63 56) |save_byte_from_array_nondet_size_t_#res#1|))) (and (bvult |#StackHeapBarrier| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4|) (= .cse0 ((_ extract 7 0) |save_byte_from_array_nondet_size_t_#res#1|)) (= .cse1 (select .cse2 (_ bv4 64))) (= .cse3 ((_ extract 31 24) |save_byte_from_array_nondet_size_t_#res#1|)) (bvult |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17| |#StackHeapBarrier|) (= (select .cse2 (_ bv5 64)) .cse4) (= (select .cse2 (_ bv8 64)) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17|) (bvadd |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_11| (concat (concat (concat (concat (concat (concat (concat .cse5 .cse6) .cse4) .cse1) .cse3) .cse7) .cse8) .cse0)))) (= ((_ extract 15 8) |save_byte_from_array_nondet_size_t_#res#1|) .cse8) (= .cse7 ((_ extract 23 16) |save_byte_from_array_nondet_size_t_#res#1|)) (= (select .cse2 (_ bv6 64)) .cse6) (= .cse5 (select .cse2 (_ bv7 64))))))) is different from true [2021-11-13 02:53:51,128 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_18| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_5| (_ BitVec 64)) (|#StackHeapBarrier| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_12| (_ BitVec 64)) (|save_byte_from_array_nondet_size_t_#res#1| (_ BitVec 64))) (let ((.cse0 (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_5|))) (let ((.cse7 ((_ extract 63 56) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse2 ((_ extract 55 48) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse1 ((_ extract 47 40) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse5 ((_ extract 39 32) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse4 (select .cse0 (_ bv2 64))) (.cse6 (select .cse0 (_ bv1 64))) (.cse3 (select .cse0 (_ bv0 64))) (.cse8 (select .cse0 (_ bv3 64)))) (and (= (select .cse0 (_ bv5 64)) .cse1) (= (select .cse0 (_ bv6 64)) .cse2) (= .cse3 ((_ extract 7 0) |save_byte_from_array_nondet_size_t_#res#1|)) (bvult |#StackHeapBarrier| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_5|) (bvult |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_18| |#StackHeapBarrier|) (= .cse4 ((_ extract 23 16) |save_byte_from_array_nondet_size_t_#res#1|)) (= .cse5 (select .cse0 (_ bv4 64))) (= .cse6 ((_ extract 15 8) |save_byte_from_array_nondet_size_t_#res#1|)) (= .cse7 (select .cse0 (_ bv7 64))) (= (select .cse0 (_ bv8 64)) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_18|) (bvadd |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_12| (concat (concat (concat (concat (concat (concat (concat .cse7 .cse2) .cse1) .cse5) .cse8) .cse4) .cse6) .cse3)))) (= .cse8 ((_ extract 31 24) |save_byte_from_array_nondet_size_t_#res#1|)))))) (exists ((|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17| (_ BitVec 64)) (|v_#StackHeapBarrier_5| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4| (_ BitVec 64)) (|v_save_byte_from_array_nondet_size_t_#res#1_4| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_11| (_ BitVec 64))) (let ((.cse9 (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4|))) (let ((.cse13 ((_ extract 63 56) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (.cse15 ((_ extract 55 48) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (.cse10 ((_ extract 39 32) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (.cse12 (select .cse9 (_ bv3 64))) (.cse16 (select .cse9 (_ bv2 64))) (.cse11 (select .cse9 (_ bv1 64))) (.cse14 (select .cse9 (_ bv0 64))) (.cse17 ((_ extract 47 40) |v_save_byte_from_array_nondet_size_t_#res#1_4|))) (and (= (select .cse9 (_ bv4 64)) .cse10) (= ((_ extract 15 8) |v_save_byte_from_array_nondet_size_t_#res#1_4|) .cse11) (= .cse12 ((_ extract 31 24) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (= .cse13 (select .cse9 (_ bv7 64))) (= .cse14 ((_ extract 7 0) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (= .cse15 (select .cse9 (_ bv6 64))) (= ((_ extract 23 16) |v_save_byte_from_array_nondet_size_t_#res#1_4|) .cse16) (bvult |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17| |v_#StackHeapBarrier_5|) (= (select (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17|) (bvadd |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_11| (concat (concat (concat (concat (concat (concat (concat .cse13 .cse15) .cse17) .cse10) .cse12) .cse16) .cse11) .cse14))) (select .cse9 (_ bv8 64))) (bvult |v_#StackHeapBarrier_5| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4|) (= .cse17 (select .cse9 (_ bv5 64)))))))) is different from true [2021-11-13 02:54:07,750 WARN L227 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 02:54:12,279 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_18| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_5| (_ BitVec 64)) (|#StackHeapBarrier| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_12| (_ BitVec 64)) (|save_byte_from_array_nondet_size_t_#res#1| (_ BitVec 64))) (let ((.cse0 (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_5|))) (let ((.cse7 ((_ extract 63 56) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse2 ((_ extract 55 48) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse1 ((_ extract 47 40) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse5 ((_ extract 39 32) |save_byte_from_array_nondet_size_t_#res#1|)) (.cse4 (select .cse0 (_ bv2 64))) (.cse6 (select .cse0 (_ bv1 64))) (.cse3 (select .cse0 (_ bv0 64))) (.cse8 (select .cse0 (_ bv3 64)))) (and (= (select .cse0 (_ bv5 64)) .cse1) (= (select .cse0 (_ bv6 64)) .cse2) (= .cse3 ((_ extract 7 0) |save_byte_from_array_nondet_size_t_#res#1|)) (bvult |#StackHeapBarrier| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_5|) (bvult |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_18| |#StackHeapBarrier|) (= .cse4 ((_ extract 23 16) |save_byte_from_array_nondet_size_t_#res#1|)) (= .cse5 (select .cse0 (_ bv4 64))) (= .cse6 ((_ extract 15 8) |save_byte_from_array_nondet_size_t_#res#1|)) (= .cse7 (select .cse0 (_ bv7 64))) (= (select .cse0 (_ bv8 64)) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_18|) (bvadd |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_12| (concat (concat (concat (concat (concat (concat (concat .cse7 .cse2) .cse1) .cse5) .cse8) .cse4) .cse6) .cse3)))) (= .cse8 ((_ extract 31 24) |save_byte_from_array_nondet_size_t_#res#1|)))))) (exists ((|v_#StackHeapBarrier_6| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_6| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_19| (_ BitVec 64)) (|v_save_byte_from_array_nondet_size_t_#res#1_5| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_13| (_ BitVec 64))) (let ((.cse9 (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_6|))) (let ((.cse11 ((_ extract 63 56) |v_save_byte_from_array_nondet_size_t_#res#1_5|)) (.cse13 ((_ extract 47 40) |v_save_byte_from_array_nondet_size_t_#res#1_5|)) (.cse10 ((_ extract 39 32) |v_save_byte_from_array_nondet_size_t_#res#1_5|)) (.cse14 (select .cse9 (_ bv3 64))) (.cse12 (select .cse9 (_ bv2 64))) (.cse15 (select .cse9 (_ bv0 64))) (.cse17 (select .cse9 (_ bv1 64))) (.cse16 ((_ extract 55 48) |v_save_byte_from_array_nondet_size_t_#res#1_5|))) (and (= (select .cse9 (_ bv4 64)) .cse10) (bvult |v_#StackHeapBarrier_6| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_6|) (= (select .cse9 (_ bv7 64)) .cse11) (bvult |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_19| |v_#StackHeapBarrier_6|) (= .cse12 ((_ extract 23 16) |v_save_byte_from_array_nondet_size_t_#res#1_5|)) (= .cse13 (select .cse9 (_ bv5 64))) (= .cse14 ((_ extract 31 24) |v_save_byte_from_array_nondet_size_t_#res#1_5|)) (= .cse15 ((_ extract 7 0) |v_save_byte_from_array_nondet_size_t_#res#1_5|)) (= (select .cse9 (_ bv8 64)) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_19|) (bvadd |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_13| (concat (concat (concat (concat (concat (concat (concat .cse11 .cse16) .cse13) .cse10) .cse14) .cse12) .cse17) .cse15)))) (= ((_ extract 15 8) |v_save_byte_from_array_nondet_size_t_#res#1_5|) .cse17) (= .cse16 (select .cse9 (_ bv6 64))))))) (exists ((|v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_7| (_ BitVec 64)) (|v_#StackHeapBarrier_5| (_ BitVec 64)) (|v_save_byte_from_array_nondet_size_t_#res#1_4| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_20| (_ BitVec 64))) (let ((.cse19 (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_7|))) (let ((.cse18 ((_ extract 63 56) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (.cse22 ((_ extract 47 40) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (.cse23 ((_ extract 39 32) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (.cse21 (select .cse19 (_ bv3 64))) (.cse20 (select .cse19 (_ bv1 64))) (.cse26 (select .cse19 (_ bv0 64))) (.cse25 (select .cse19 (_ bv2 64))) (.cse24 ((_ extract 55 48) |v_save_byte_from_array_nondet_size_t_#res#1_4|))) (and (= .cse18 (select .cse19 (_ bv7 64))) (= .cse20 ((_ extract 15 8) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (= ((_ extract 31 24) |v_save_byte_from_array_nondet_size_t_#res#1_4|) .cse21) (bvult |v_#StackHeapBarrier_5| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_7|) (bvult |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_20| |v_#StackHeapBarrier_5|) (= .cse22 (select .cse19 (_ bv5 64))) (= .cse23 (select .cse19 (_ bv4 64))) (= (select .cse19 (_ bv8 64)) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_20|) (bvadd |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_14| (concat (concat (concat (concat (concat (concat (concat .cse18 .cse24) .cse22) .cse23) .cse21) .cse25) .cse20) .cse26)))) (= .cse26 ((_ extract 7 0) |v_save_byte_from_array_nondet_size_t_#res#1_4|)) (= ((_ extract 23 16) |v_save_byte_from_array_nondet_size_t_#res#1_4|) .cse25) (= .cse24 (select .cse19 (_ bv6 64))))))) (exists ((|v_#StackHeapBarrier_7| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4| (_ BitVec 64)) (|v_save_byte_from_array_nondet_size_t_#res#1_6| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_11| (_ BitVec 64))) (let ((.cse27 (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4|))) (let ((.cse28 ((_ extract 47 40) |v_save_byte_from_array_nondet_size_t_#res#1_6|)) (.cse30 (select .cse27 (_ bv3 64))) (.cse29 (select .cse27 (_ bv2 64))) (.cse31 (select .cse27 (_ bv1 64))) (.cse35 (select .cse27 (_ bv0 64))) (.cse33 ((_ extract 55 48) |v_save_byte_from_array_nondet_size_t_#res#1_6|)) (.cse34 ((_ extract 39 32) |v_save_byte_from_array_nondet_size_t_#res#1_6|)) (.cse32 ((_ extract 63 56) |v_save_byte_from_array_nondet_size_t_#res#1_6|))) (and (= (select .cse27 (_ bv5 64)) .cse28) (= ((_ extract 23 16) |v_save_byte_from_array_nondet_size_t_#res#1_6|) .cse29) (= .cse30 ((_ extract 31 24) |v_save_byte_from_array_nondet_size_t_#res#1_6|)) (bvult |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17| |v_#StackHeapBarrier_7|) (= ((_ extract 15 8) |v_save_byte_from_array_nondet_size_t_#res#1_6|) .cse31) (= (select (select |c_#memory_int| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.base_BEFORE_CALL_17|) (bvadd |v_ULTIMATE.start_aws_array_eq_c_str_harness_~c_str~0#1.offset_BEFORE_CALL_11| (concat (concat (concat (concat (concat (concat (concat .cse32 .cse33) .cse28) .cse34) .cse30) .cse29) .cse31) .cse35))) (select .cse27 (_ bv8 64))) (= .cse35 ((_ extract 7 0) |v_save_byte_from_array_nondet_size_t_#res#1_6|)) (= (select .cse27 (_ bv6 64)) .cse33) (= (select .cse27 (_ bv4 64)) .cse34) (= .cse32 (select .cse27 (_ bv7 64))) (bvult |v_#StackHeapBarrier_7| |v_ULTIMATE.start_aws_array_eq_c_str_harness_~#old_byte_from_str~0#1.base_BEFORE_CALL_4|)))))) is different from true