./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:07:21,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:07:21,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:07:21,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:07:21,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:07:21,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:07:21,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:07:21,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:07:21,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:07:21,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:07:21,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:07:21,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:07:21,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:07:21,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:07:21,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:07:21,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:07:21,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:07:21,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:07:21,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:07:21,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:07:21,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:07:21,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:07:21,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:07:21,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:07:21,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:07:21,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:07:21,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:07:21,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:07:21,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:07:21,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:07:21,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:07:21,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:07:21,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:07:21,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:07:21,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:07:21,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:07:21,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:07:21,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:07:21,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:07:21,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:07:21,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:07:21,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:07:21,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:07:21,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:07:21,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:07:21,305 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:07:21,305 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:07:21,305 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:07:21,305 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:07:21,312 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:07:21,312 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:07:21,312 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:07:21,313 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:07:21,314 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:07:21,314 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:07:21,314 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:07:21,315 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:07:21,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:07:21,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:07:21,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:07:21,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:07:21,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:07:21,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:07:21,317 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:07:21,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:07:21,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:07:21,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:07:21,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:07:21,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:07:21,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:21,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:07:21,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:07:21,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:07:21,321 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:07:21,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:07:21,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:07:21,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:07:21,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:07:21,322 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_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-11-07 02:07:21,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:07:21,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:07:21,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:07:21,726 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:07:21,727 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:07:21,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-07 02:07:21,816 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/dd8828385/34020415f10c407d8f17b864698123c4/FLAGf76392fed [2021-11-07 02:07:22,876 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:07:22,877 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-07 02:07:22,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/dd8828385/34020415f10c407d8f17b864698123c4/FLAGf76392fed [2021-11-07 02:07:23,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/dd8828385/34020415f10c407d8f17b864698123c4 [2021-11-07 02:07:23,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:07:23,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:07:23,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:23,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:07:23,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:07:23,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:23" (1/1) ... [2021-11-07 02:07:23,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21dceabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:23, skipping insertion in model container [2021-11-07 02:07:23,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:23" (1/1) ... [2021-11-07 02:07:23,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:07:23,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:23,833 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-07 02:07:23,849 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-07 02:07:23,882 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:23,899 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:25,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:25,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:25,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:25,697 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:25,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:25,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:25,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:25,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:25,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:25,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:25,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:25,916 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:26,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:26,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:26,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:26,137 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 02:07:26,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6725df9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:26, skipping insertion in model container [2021-11-07 02:07:26,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:26,138 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:07:26,141 INFO L168 Benchmark]: Toolchain (without parser) took 2870.92 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 52.4 MB in the beginning and 57.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:26,142 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:07:26,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2860.53 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 52.4 MB in the beginning and 57.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:26,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2860.53 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 52.4 MB in the beginning and 57.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6991]: 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_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:07:28,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:07:28,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:07:28,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:07:28,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:07:28,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:07:28,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:07:28,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:07:28,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:07:28,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:07:28,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:07:28,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:07:28,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:07:28,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:07:28,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:07:28,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:07:28,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:07:28,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:07:28,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:07:28,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:07:28,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:07:28,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:07:28,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:07:28,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:07:28,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:07:28,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:07:28,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:07:28,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:07:28,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:07:28,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:07:28,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:07:28,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:07:28,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:07:28,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:07:28,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:07:28,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:07:28,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:07:28,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:07:28,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:07:28,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:07:28,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:07:28,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:07:29,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:07:29,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:07:29,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:07:29,031 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:07:29,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:07:29,032 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:07:29,032 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:07:29,032 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:07:29,033 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:07:29,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:07:29,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:07:29,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:07:29,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:07:29,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:07:29,037 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:07:29,037 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:07:29,037 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:07:29,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:07:29,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:07:29,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:07:29,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:07:29,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:07:29,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:07:29,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:29,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:07:29,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:07:29,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:07:29,040 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:07:29,041 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:07:29,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:07:29,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:07:29,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:07:29,043 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_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-11-07 02:07:29,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:07:29,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:07:29,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:07:29,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:07:29,571 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:07:29,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-07 02:07:29,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/90af80659/fe60200319ac435f98abf3c35b713ff6/FLAGe3739cf24 [2021-11-07 02:07:30,857 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:07:30,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-07 02:07:30,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/90af80659/fe60200319ac435f98abf3c35b713ff6/FLAGe3739cf24 [2021-11-07 02:07:31,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/data/90af80659/fe60200319ac435f98abf3c35b713ff6 [2021-11-07 02:07:31,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:07:31,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:07:31,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:31,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:07:31,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:07:31,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:31" (1/1) ... [2021-11-07 02:07:31,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd84701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:31, skipping insertion in model container [2021-11-07 02:07:31,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:31" (1/1) ... [2021-11-07 02:07:31,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:07:31,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:31,887 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-07 02:07:31,894 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-07 02:07:31,927 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:31,935 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:33,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,041 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:33,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:33,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:33,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:33,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:33,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:33,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:33,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:33,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:33,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:33,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:33,853 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:34,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:34,203 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:07:34,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:34,296 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-07 02:07:34,297 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-07 02:07:34,302 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:34,305 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:34,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,507 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:34,508 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:34,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:34,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:34,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:34,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:34,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:34,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:34,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:34,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:34,582 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:34,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:34,774 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:07:34,801 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4493,4506] [2021-11-07 02:07:34,808 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_fa400a0c-a637-4301-b4f0-9af393543714/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i[4553,4566] [2021-11-07 02:07:34,810 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:07:34,812 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:07:34,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:34,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:07:34,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:07:34,955 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:07:34,956 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:07:34,957 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:07:34,958 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:07:34,958 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:07:34,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:07:34,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:07:34,961 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:07:34,988 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:07:35,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:35,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:07:35,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:35,652 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:07:35,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35 WrapperNode [2021-11-07 02:07:35,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:35,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:07:35,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:07:35,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:07:35,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:35,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:35,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:07:35,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:07:35,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:07:35,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:07:35,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:35,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:35,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:35,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:36,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:36,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:36,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:36,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:07:36,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:07:36,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:07:36,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:07:36,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (1/1) ... [2021-11-07 02:07:36,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:36,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:07:36,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:07:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:07:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:07:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:07:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:07:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:07:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:07:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:07:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:07:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:07:36,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:07:36,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:07:36,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:07:37,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:07:37,812 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2021-11-07 02:07:37,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:07:37 BoogieIcfgContainer [2021-11-07 02:07:37,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:07:37,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:07:37,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:07:37,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:07:37,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:07:31" (1/3) ... [2021-11-07 02:07:37,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd9a84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:07:37, skipping insertion in model container [2021-11-07 02:07:37,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:35" (2/3) ... [2021-11-07 02:07:37,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd9a84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:07:37, skipping insertion in model container [2021-11-07 02:07:37,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:07:37" (3/3) ... [2021-11-07 02:07:37,825 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2021-11-07 02:07:37,832 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:07:37,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 02:07:37,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:07:37,899 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:07:37,899 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 02:07:37,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 80 states have (on average 1.4375) internal successors, (115), 85 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 02:07:37,926 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:37,927 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:37,928 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:07:37,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:37,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1267490943, now seen corresponding path program 1 times [2021-11-07 02:07:37,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:37,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549827883] [2021-11-07 02:07:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:37,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:37,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:37,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:37,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:07:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:38,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:07:38,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:38,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:38,511 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:38,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549827883] [2021-11-07 02:07:38,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549827883] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:38,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:38,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:07:38,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788198335] [2021-11-07 02:07:38,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:07:38,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:38,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:07:38,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:07:38,538 INFO L87 Difference]: Start difference. First operand has 86 states, 80 states have (on average 1.4375) internal successors, (115), 85 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:38,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:38,564 INFO L93 Difference]: Finished difference Result 166 states and 222 transitions. [2021-11-07 02:07:38,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:07:38,566 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 02:07:38,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:38,577 INFO L225 Difference]: With dead ends: 166 [2021-11-07 02:07:38,577 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:07:38,581 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:07:38,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:07:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 02:07:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 79 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2021-11-07 02:07:38,624 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 22 [2021-11-07 02:07:38,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:38,625 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2021-11-07 02:07:38,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:38,626 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2021-11-07 02:07:38,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 02:07:38,627 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:38,628 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:38,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:38,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:38,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:07:38,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1009325505, now seen corresponding path program 1 times [2021-11-07 02:07:38,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:38,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100043414] [2021-11-07 02:07:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:38,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:38,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:38,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:38,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:07:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:39,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:07:39,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:39,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:39,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:39,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:39,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100043414] [2021-11-07 02:07:39,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100043414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:39,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:39,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:07:39,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937834120] [2021-11-07 02:07:39,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:07:39,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:39,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:07:39,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:07:39,688 INFO L87 Difference]: Start difference. First operand 80 states and 92 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:39,771 INFO L93 Difference]: Finished difference Result 132 states and 153 transitions. [2021-11-07 02:07:39,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:07:39,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 02:07:39,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:39,778 INFO L225 Difference]: With dead ends: 132 [2021-11-07 02:07:39,778 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:07:39,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:07:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:07:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 02:07:39,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 79 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2021-11-07 02:07:39,790 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 22 [2021-11-07 02:07:39,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:39,790 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-11-07 02:07:39,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2021-11-07 02:07:39,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 02:07:39,792 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:39,792 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:39,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:40,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:40,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:07:40,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:40,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1735715402, now seen corresponding path program 1 times [2021-11-07 02:07:40,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:40,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005074649] [2021-11-07 02:07:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:40,010 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:40,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:40,027 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:40,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:07:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:40,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:07:40,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:40,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:40,724 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:40,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005074649] [2021-11-07 02:07:40,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005074649] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:40,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:40,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 02:07:40,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769399747] [2021-11-07 02:07:40,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:07:40,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:07:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:07:40,727 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:40,947 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2021-11-07 02:07:40,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:07:40,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-07 02:07:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:40,954 INFO L225 Difference]: With dead ends: 116 [2021-11-07 02:07:40,954 INFO L226 Difference]: Without dead ends: 86 [2021-11-07 02:07:40,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:07:40,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-07 02:07:40,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2021-11-07 02:07:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.2) internal successors, (90), 79 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:40,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2021-11-07 02:07:40,978 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 31 [2021-11-07 02:07:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:40,979 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2021-11-07 02:07:40,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2021-11-07 02:07:40,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:07:40,981 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:40,981 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:41,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:41,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:41,207 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:07:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:41,207 INFO L85 PathProgramCache]: Analyzing trace with hash -475843332, now seen corresponding path program 1 times [2021-11-07 02:07:41,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:41,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598141592] [2021-11-07 02:07:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:41,210 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:41,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:41,211 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:41,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:07:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:41,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:07:41,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:41,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:41,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:41,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598141592] [2021-11-07 02:07:41,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598141592] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:41,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:41,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:07:41,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518067544] [2021-11-07 02:07:41,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:07:41,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:07:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:07:41,792 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:41,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:41,822 INFO L93 Difference]: Finished difference Result 110 states and 121 transitions. [2021-11-07 02:07:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:07:41,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 02:07:41,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:41,824 INFO L225 Difference]: With dead ends: 110 [2021-11-07 02:07:41,824 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:07:41,825 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:07:41,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:07:41,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 02:07:41,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 79 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2021-11-07 02:07:41,835 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 32 [2021-11-07 02:07:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:41,835 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2021-11-07 02:07:41,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:41,836 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2021-11-07 02:07:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:07:41,837 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:41,838 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:41,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:42,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:42,058 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:07:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:42,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2121797098, now seen corresponding path program 1 times [2021-11-07 02:07:42,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:42,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121744801] [2021-11-07 02:07:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:42,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:42,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:42,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:42,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:07:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:42,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:07:42,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:42,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:43,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:43,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121744801] [2021-11-07 02:07:43,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121744801] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:43,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:43,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:07:43,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820451894] [2021-11-07 02:07:43,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:07:43,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:43,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:07:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:07:43,112 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:43,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:43,229 INFO L93 Difference]: Finished difference Result 144 states and 160 transitions. [2021-11-07 02:07:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:07:43,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 02:07:43,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:43,233 INFO L225 Difference]: With dead ends: 144 [2021-11-07 02:07:43,233 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 02:07:43,234 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:07:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 02:07:43,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 02:07:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 79 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2021-11-07 02:07:43,243 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 39 [2021-11-07 02:07:43,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:43,243 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2021-11-07 02:07:43,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:43,244 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2021-11-07 02:07:43,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:07:43,246 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:43,246 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:43,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:43,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:43,463 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:07:43,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:43,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1786174002, now seen corresponding path program 1 times [2021-11-07 02:07:43,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:43,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378940177] [2021-11-07 02:07:43,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:43,465 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:43,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:43,467 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:43,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:07:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:43,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 02:07:43,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:44,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:44,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:44,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378940177] [2021-11-07 02:07:44,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378940177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:44,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:44,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-07 02:07:44,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162388566] [2021-11-07 02:07:44,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:07:44,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:44,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:07:44,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:07:44,639 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:44,740 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2021-11-07 02:07:44,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:07:44,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 02:07:44,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:44,741 INFO L225 Difference]: With dead ends: 80 [2021-11-07 02:07:44,741 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 02:07:44,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:07:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 02:07:44,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 02:07:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 02:07:44,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2021-11-07 02:07:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:44,743 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 02:07:44,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 02:07:44,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 02:07:44,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:07:44,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:07:44,747 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:07:44,747 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:07:44,747 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:07:44,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:44,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:44,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 02:07:44,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:07:45,293 INFO L857 garLoopResultBuilder]: For program point L8095-4(lines 8095 8108) no Hoare annotation was computed. [2021-11-07 02:07:45,293 INFO L853 garLoopResultBuilder]: At program point L8095-3(lines 8095 8108) the Hoare annotation is: (and (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base)) [2021-11-07 02:07:45,294 INFO L857 garLoopResultBuilder]: For program point L8095-2(lines 8095 8108) no Hoare annotation was computed. [2021-11-07 02:07:45,294 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,294 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 02:07:45,294 INFO L853 garLoopResultBuilder]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2021-11-07 02:07:45,294 INFO L857 garLoopResultBuilder]: For program point L8097(lines 8097 8101) no Hoare annotation was computed. [2021-11-07 02:07:45,295 INFO L853 garLoopResultBuilder]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (not (= (_ bv0 64) ULTIMATE.start_ensure_c_str_is_allocated_~str~1.base)) (not (= (_ bv0 64) |ULTIMATE.start_bounded_malloc_#res.base|)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res.base| (_ bv0 64))) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset)) [2021-11-07 02:07:45,295 INFO L860 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-11-07 02:07:45,295 INFO L857 garLoopResultBuilder]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2021-11-07 02:07:45,295 INFO L857 garLoopResultBuilder]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2021-11-07 02:07:45,295 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-07 02:07:45,295 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-07 02:07:45,295 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-11-07 02:07:45,295 INFO L857 garLoopResultBuilder]: For program point L222-3(lines 7102 7112) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point L222-4(lines 222 224) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point L7589(lines 7589 7597) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,296 INFO L857 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,297 INFO L857 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,297 INFO L857 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,297 INFO L857 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,297 INFO L857 garLoopResultBuilder]: For program point L223-12(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,297 INFO L857 garLoopResultBuilder]: For program point L223-13(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,297 INFO L857 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-11-07 02:07:45,297 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,298 INFO L857 garLoopResultBuilder]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2021-11-07 02:07:45,298 INFO L857 garLoopResultBuilder]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2021-11-07 02:07:45,298 INFO L857 garLoopResultBuilder]: For program point L8103(lines 8103 8107) no Hoare annotation was computed. [2021-11-07 02:07:45,298 INFO L853 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2021-11-07 02:07:45,298 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,298 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 02:07:45,298 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,306 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,306 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,306 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,307 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,307 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,307 INFO L857 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,307 INFO L857 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,307 INFO L857 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-11-07 02:07:45,308 INFO L853 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2021-11-07 02:07:45,308 INFO L857 garLoopResultBuilder]: For program point L8915(lines 8915 8916) no Hoare annotation was computed. [2021-11-07 02:07:45,308 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,308 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,308 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,309 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,309 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,309 INFO L857 garLoopResultBuilder]: For program point L8915-2(lines 8915 8916) no Hoare annotation was computed. [2021-11-07 02:07:45,309 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,309 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,310 INFO L857 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,310 INFO L860 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: true [2021-11-07 02:07:45,310 INFO L857 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,310 INFO L853 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-11-07 02:07:45,310 INFO L853 garLoopResultBuilder]: At program point L261-2(line 261) the Hoare annotation is: (and (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset)) [2021-11-07 02:07:45,311 INFO L857 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-11-07 02:07:45,311 INFO L857 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,311 INFO L857 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,311 INFO L857 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,311 INFO L853 garLoopResultBuilder]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (or (and (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base)) (and (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_~str.base) (not (= (_ bv0 64) ULTIMATE.start_ensure_c_str_is_allocated_~str~1.base)) (not (= (_ bv0 64) |ULTIMATE.start_bounded_malloc_#res.base|)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res.base| (_ bv0 64))) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset) (not (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_~c_str.base)) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_~str.offset))) [2021-11-07 02:07:45,312 INFO L857 garLoopResultBuilder]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,312 INFO L857 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,312 INFO L857 garLoopResultBuilder]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,312 INFO L857 garLoopResultBuilder]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,312 INFO L857 garLoopResultBuilder]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2021-11-07 02:07:45,313 INFO L853 garLoopResultBuilder]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: false [2021-11-07 02:07:45,313 INFO L857 garLoopResultBuilder]: For program point L7579(line 7579) no Hoare annotation was computed. [2021-11-07 02:07:45,313 INFO L857 garLoopResultBuilder]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2021-11-07 02:07:45,313 INFO L857 garLoopResultBuilder]: For program point L7579-2(line 7579) no Hoare annotation was computed. [2021-11-07 02:07:45,313 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 02:07:45,314 INFO L857 garLoopResultBuilder]: For program point L7580(lines 7580 7588) no Hoare annotation was computed. [2021-11-07 02:07:45,314 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 02:07:45,314 INFO L853 garLoopResultBuilder]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2021-11-07 02:07:45,314 INFO L857 garLoopResultBuilder]: For program point L8918(lines 8918 8923) no Hoare annotation was computed. [2021-11-07 02:07:45,315 INFO L853 garLoopResultBuilder]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_bounded_malloc_#res.base|)) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset)) [2021-11-07 02:07:45,315 INFO L853 garLoopResultBuilder]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2021-11-07 02:07:45,315 INFO L853 garLoopResultBuilder]: At program point L8110(lines 8078 8111) the Hoare annotation is: (and (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base)) [2021-11-07 02:07:45,315 INFO L853 garLoopResultBuilder]: At program point L7598(lines 7577 7599) the Hoare annotation is: (or (and (= |ULTIMATE.start_aws_string_eq_c_str_#res| (_ bv0 8)) (not (= (_ bv0 64) ULTIMATE.start_ensure_c_str_is_allocated_~str~1.base)) (not (= (_ bv0 64) |ULTIMATE.start_bounded_malloc_#res.base|)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res.base| (_ bv0 64))) (not (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_~c_str.base))) (and (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base))) [2021-11-07 02:07:45,315 INFO L853 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= (_ bv16 64) ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-11-07 02:07:45,316 INFO L853 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: (and (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base) (= (_ bv0 64) ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset)) [2021-11-07 02:07:45,316 INFO L853 garLoopResultBuilder]: At program point L266-2(line 266) the Hoare annotation is: false [2021-11-07 02:07:45,320 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-07 02:07:45,322 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:07:45,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:07:45 BoogieIcfgContainer [2021-11-07 02:07:45,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:07:45,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:07:45,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:07:45,343 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:07:45,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:07:37" (3/4) ... [2021-11-07 02:07:45,347 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 02:07:45,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2021-11-07 02:07:45,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-07 02:07:45,373 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 02:07:45,374 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 02:07:45,410 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0bv8 && !(0bv64 == str)) && !(0bv64 == \result)) && !(\result == 0bv64)) && !(0bv64 == c_str)) || (0bv64 == c_str && 0bv64 == c_str) [2021-11-07 02:07:45,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0bv64 == \result) && 0bv64 == str) && 0bv64 == str [2021-11-07 02:07:45,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (0bv64 == c_str && 0bv64 == c_str) || (((((((0bv64 == str && !(0bv64 == str)) && !(0bv64 == \result)) && !(\result == 0bv64)) && 0bv64 == str) && 0bv64 == str) && !(0bv64 == c_str)) && 0bv64 == str) [2021-11-07 02:07:45,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0bv64 == str) && !(0bv64 == \result)) && !(\result == 0bv64)) && 0bv64 == str) && 0bv64 == str [2021-11-07 02:07:45,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:07:45,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:07:45,699 INFO L168 Benchmark]: Toolchain (without parser) took 14494.44 ms. Allocated memory was 56.6 MB in the beginning and 169.9 MB in the end (delta: 113.2 MB). Free memory was 25.8 MB in the beginning and 105.3 MB in the end (delta: -79.5 MB). Peak memory consumption was 94.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:45,699 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:07:45,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4448.27 ms. Allocated memory was 56.6 MB in the beginning and 132.1 MB in the end (delta: 75.5 MB). Free memory was 25.6 MB in the beginning and 60.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:45,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 288.72 ms. Allocated memory is still 132.1 MB. Free memory was 60.9 MB in the beginning and 80.1 MB in the end (delta: -19.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:45,701 INFO L168 Benchmark]: Boogie Preprocessor took 144.77 ms. Allocated memory is still 132.1 MB. Free memory was 80.1 MB in the beginning and 75.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:45,701 INFO L168 Benchmark]: RCFGBuilder took 1724.19 ms. Allocated memory was 132.1 MB in the beginning and 169.9 MB in the end (delta: 37.7 MB). Free memory was 74.7 MB in the beginning and 105.1 MB in the end (delta: -30.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:45,702 INFO L168 Benchmark]: TraceAbstraction took 7524.65 ms. Allocated memory is still 169.9 MB. Free memory was 105.1 MB in the beginning and 112.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:45,702 INFO L168 Benchmark]: Witness Printer took 354.85 ms. Allocated memory is still 169.9 MB. Free memory was 112.3 MB in the beginning and 105.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 67.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:45,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4448.27 ms. Allocated memory was 56.6 MB in the beginning and 132.1 MB in the end (delta: 75.5 MB). Free memory was 25.6 MB in the beginning and 60.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 288.72 ms. Allocated memory is still 132.1 MB. Free memory was 60.9 MB in the beginning and 80.1 MB in the end (delta: -19.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 144.77 ms. Allocated memory is still 132.1 MB. Free memory was 80.1 MB in the beginning and 75.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1724.19 ms. Allocated memory was 132.1 MB in the beginning and 169.9 MB in the end (delta: 37.7 MB). Free memory was 74.7 MB in the beginning and 105.1 MB in the end (delta: -30.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7524.65 ms. Allocated memory is still 169.9 MB. Free memory was 105.1 MB in the beginning and 112.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. * Witness Printer took 354.85 ms. Allocated memory is still 169.9 MB. Free memory was 112.3 MB in the beginning and 105.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 67.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 457 SDtfs, 302 SDslu, 804 SDs, 0 SdLazy, 77 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 389 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 19 PreInvPairs, 30 NumberOfFragments, 136 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 380 ConstructedInterpolants, 1 QuantifiedInterpolants, 820 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2301 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: (!(0bv64 == \result) && 0bv64 == str) && 0bv64 == str - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (0bv64 == c_str && 0bv64 == c_str) || (((((((0bv64 == str && !(0bv64 == str)) && !(0bv64 == \result)) && !(\result == 0bv64)) && 0bv64 == str) && 0bv64 == str) && !(0bv64 == c_str)) && 0bv64 == str) - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: (((!(0bv64 == str) && !(0bv64 == \result)) && !(\result == 0bv64)) && 0bv64 == str) && 0bv64 == str - InvariantResult [Line: 8078]: Loop Invariant Derived loop invariant: 0bv64 == c_str && 0bv64 == c_str - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16bv64 == max_size - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0bv64 == str && 0bv64 == str - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8095]: Loop Invariant Derived loop invariant: 0bv64 == c_str && 0bv64 == c_str - InvariantResult [Line: 7577]: Loop Invariant Derived loop invariant: ((((\result == 0bv8 && !(0bv64 == str)) && !(0bv64 == \result)) && !(\result == 0bv64)) && !(0bv64 == c_str)) || (0bv64 == c_str && 0bv64 == c_str) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0bv64 == str && 0bv64 == str - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-07 02:07:45,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa400a0c-a637-4301-b4f0-9af393543714/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE