./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:13:02,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:13:02,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:13:02,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:13:02,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:13:02,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:13:02,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:13:02,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:13:02,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:13:02,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:13:02,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:13:02,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:13:02,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:13:02,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:13:02,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:13:02,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:13:02,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:13:02,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:13:02,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:13:02,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:13:02,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:13:02,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:13:02,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:13:02,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:13:02,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:13:02,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:13:02,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:13:02,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:13:02,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:13:02,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:13:02,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:13:02,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:13:02,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:13:02,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:13:02,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:13:02,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:13:02,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:13:02,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:13:02,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:13:02,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:13:02,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:13:02,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:13:02,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:13:02,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:13:02,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:13:02,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:13:02,331 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:13:02,332 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:13:02,332 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:13:02,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:13:02,332 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:13:02,333 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:13:02,342 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:13:02,342 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:13:02,343 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:13:02,343 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:13:02,343 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:13:02,344 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:13:02,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:13:02,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:13:02,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:13:02,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:13:02,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:13:02,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:13:02,347 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:13:02,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:13:02,347 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:13:02,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:13:02,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:13:02,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:13:02,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:13:02,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:13:02,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:13:02,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:13:02,352 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:13:02,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:13:02,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:13:02,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:13:02,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:13:02,354 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2021-11-12 23:13:02,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:13:02,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:13:02,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:13:02,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:13:02,755 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:13:02,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-12 23:13:02,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/77f15fd42/b48a89601a994bf6a7e360848287d0a8/FLAG68ce71bb1 [2021-11-12 23:13:04,071 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:13:04,072 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-12 23:13:04,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/77f15fd42/b48a89601a994bf6a7e360848287d0a8/FLAG68ce71bb1 [2021-11-12 23:13:04,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/77f15fd42/b48a89601a994bf6a7e360848287d0a8 [2021-11-12 23:13:04,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:13:04,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:13:04,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:13:04,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:13:04,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:13:04,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:13:04" (1/1) ... [2021-11-12 23:13:04,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583ef759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:04, skipping insertion in model container [2021-11-12 23:13:04,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:13:04" (1/1) ... [2021-11-12 23:13:04,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:13:04,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:13:04,882 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-12 23:13:04,890 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-12 23:13:04,921 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:13:04,928 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:13:06,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,162 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:06,745 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:13:06,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:13:06,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:13:06,750 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:13:06,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:13:06,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:13:06,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:13:06,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:13:06,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:13:06,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:13:06,997 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:13:07,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:07,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:07,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:13:07,468 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:13:07,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3970ff31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:07, skipping insertion in model container [2021-11-12 23:13:07,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:13:07,471 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:13:07,474 INFO L158 Benchmark]: Toolchain (without parser) took 3102.14ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 81.4MB in the beginning and 99.9MB in the end (delta: -18.5MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2021-11-12 23:13:07,475 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:13:07,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3095.85ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 81.2MB in the beginning and 99.9MB in the end (delta: -18.7MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2021-11-12 23:13:07,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3095.85ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 81.2MB in the beginning and 99.9MB in the end (delta: -18.7MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:13:10,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:13:10,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:13:10,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:13:10,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:13:10,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:13:10,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:13:10,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:13:10,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:13:10,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:13:10,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:13:10,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:13:10,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:13:10,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:13:10,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:13:10,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:13:10,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:13:10,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:13:10,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:13:10,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:13:10,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:13:10,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:13:10,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:13:10,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:13:10,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:13:10,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:13:10,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:13:10,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:13:10,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:13:10,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:13:10,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:13:10,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:13:10,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:13:10,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:13:10,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:13:10,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:13:10,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:13:10,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:13:10,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:13:10,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:13:10,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:13:10,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:13:10,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:13:10,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:13:10,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:13:10,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:13:10,562 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:13:10,562 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:13:10,563 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:13:10,563 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:13:10,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:13:10,564 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:13:10,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:13:10,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:13:10,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:13:10,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:13:10,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:13:10,569 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:13:10,569 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:13:10,569 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:13:10,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:13:10,569 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:13:10,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:13:10,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:13:10,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:13:10,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:13:10,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:13:10,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:13:10,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:13:10,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:13:10,572 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:13:10,572 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:13:10,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:13:10,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:13:10,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:13:10,573 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2021-11-12 23:13:11,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:13:11,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:13:11,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:13:11,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:13:11,140 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:13:11,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-12 23:13:11,221 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/39aa30a5d/1b49cc391eed40d59e90c4181413ca43/FLAG223778afb [2021-11-12 23:13:12,342 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:13:12,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-12 23:13:12,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/39aa30a5d/1b49cc391eed40d59e90c4181413ca43/FLAG223778afb [2021-11-12 23:13:12,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/data/39aa30a5d/1b49cc391eed40d59e90c4181413ca43 [2021-11-12 23:13:12,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:13:12,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:13:12,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:13:12,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:13:12,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:13:12,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:13:12" (1/1) ... [2021-11-12 23:13:12,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11bab4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:12, skipping insertion in model container [2021-11-12 23:13:12,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:13:12" (1/1) ... [2021-11-12 23:13:12,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:13:12,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:13:13,188 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-12 23:13:13,199 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-12 23:13:13,245 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:13:13,255 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:13:14,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:14,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:15,394 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:13:15,396 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:13:15,397 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:13:15,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:13:15,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:13:15,402 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:13:15,403 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:13:15,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:13:15,405 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:13:15,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:13:15,619 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:13:15,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:15,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:15,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:13:16,029 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:13:16,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:13:16,159 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-12 23:13:16,160 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-12 23:13:16,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:13:16,166 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:13:16,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:13:16,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:13:16,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:13:16,361 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:13:16,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:13:16,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:13:16,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:13:16,364 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:13:16,365 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:13:16,366 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:13:16,408 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:13:16,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:13:16,616 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:13:16,648 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-12 23:13:16,648 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_2defb951-bb2a-49a2-82c1-b928441d2aaf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-12 23:13:16,650 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:13:16,651 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:13:16,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:13:16,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:13:16,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:13:16,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:13:16,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:13:16,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:13:16,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:13:16,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:13:16,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:13:16,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:13:16,848 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:13:16,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:16,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:13:17,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:13:17,542 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:13:17,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17 WrapperNode [2021-11-12 23:13:17,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:13:17,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:13:17,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:13:17,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:13:17,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:17,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:17,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:13:17,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:13:17,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:13:17,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:13:17,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:17,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:17,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:17,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:18,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:18,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:18,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:18,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:13:18,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:13:18,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:13:18,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:13:18,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (1/1) ... [2021-11-12 23:13:18,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:13:18,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:13:18,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:13:18,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:13:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2021-11-12 23:13:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2021-11-12 23:13:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 23:13:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 23:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:13:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:13:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-12 23:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:13:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:13:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:13:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:13:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:13:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:13:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 23:13:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 23:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:13:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:13:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-12 23:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-12 23:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-12 23:13:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 23:13:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 23:13:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:13:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:13:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:13:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:13:39,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:13:39,080 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:13:39,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:13:39 BoogieIcfgContainer [2021-11-12 23:13:39,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:13:39,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:13:39,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:13:39,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:13:39,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:13:12" (1/3) ... [2021-11-12 23:13:39,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c8177f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:13:39, skipping insertion in model container [2021-11-12 23:13:39,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:13:17" (2/3) ... [2021-11-12 23:13:39,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c8177f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:13:39, skipping insertion in model container [2021-11-12 23:13:39,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:13:39" (3/3) ... [2021-11-12 23:13:39,093 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2021-11-12 23:13:39,100 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:13:39,101 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:13:39,164 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:13:39,171 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:13:39,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:13:39,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-12 23:13:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-12 23:13:39,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:13:39,209 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:13:39,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:13:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:13:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash -132459702, now seen corresponding path program 1 times [2021-11-12 23:13:39,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:13:39,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149130863] [2021-11-12 23:13:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:13:39,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:13:39,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:13:39,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:13:39,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:13:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:13:44,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:13:44,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:13:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-12 23:13:44,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:13:45,306 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-12 23:13:45,308 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:13:45,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149130863] [2021-11-12 23:13:45,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149130863] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:13:45,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:13:45,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 23:13:45,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429378625] [2021-11-12 23:13:45,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:13:45,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:13:45,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:13:45,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:13:45,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:13:45,390 INFO L87 Difference]: Start difference. First operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:13:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:13:45,479 INFO L93 Difference]: Finished difference Result 247 states and 357 transitions. [2021-11-12 23:13:45,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:13:45,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2021-11-12 23:13:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:13:45,506 INFO L225 Difference]: With dead ends: 247 [2021-11-12 23:13:45,506 INFO L226 Difference]: Without dead ends: 115 [2021-11-12 23:13:45,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:13:45,519 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:13:45,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 9.12ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:13:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-12 23:13:45,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-12 23:13:45,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 74 states have internal predecessors, (89), 34 states have call successors, (34), 9 states have call predecessors, (34), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-12 23:13:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2021-11-12 23:13:45,587 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 84 [2021-11-12 23:13:45,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:13:45,588 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2021-11-12 23:13:45,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:13:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2021-11-12 23:13:45,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-12 23:13:45,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:13:45,595 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:13:45,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:13:45,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:13:45,796 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:13:45,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:13:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash 786611006, now seen corresponding path program 1 times [2021-11-12 23:13:45,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:13:45,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168588212] [2021-11-12 23:13:45,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:13:45,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:13:45,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:13:45,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:13:45,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:13:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:13:50,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:13:50,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:13:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-12 23:13:51,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:13:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:13:52,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:13:52,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168588212] [2021-11-12 23:13:52,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168588212] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:13:52,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:13:52,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 23:13:52,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289806827] [2021-11-12 23:13:52,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:13:52,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:13:52,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:13:52,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:13:52,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:13:52,291 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 23:13:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:13:52,734 INFO L93 Difference]: Finished difference Result 214 states and 295 transitions. [2021-11-12 23:13:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:13:52,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2021-11-12 23:13:52,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:13:52,743 INFO L225 Difference]: With dead ends: 214 [2021-11-12 23:13:52,743 INFO L226 Difference]: Without dead ends: 118 [2021-11-12 23:13:52,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:13:52,746 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 39 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 324.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 397.04ms IncrementalHoareTripleChecker+Time [2021-11-12 23:13:52,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 494 Invalid, 64 Unknown, 0 Unchecked, 8.98ms Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 397.04ms Time] [2021-11-12 23:13:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-12 23:13:52,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-12 23:13:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2021-11-12 23:13:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 162 transitions. [2021-11-12 23:13:52,795 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 162 transitions. Word has length 84 [2021-11-12 23:13:52,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:13:52,796 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 162 transitions. [2021-11-12 23:13:52,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-12 23:13:52,801 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2021-11-12 23:13:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-12 23:13:52,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:13:52,811 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:13:52,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:13:53,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:13:53,035 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:13:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:13:53,036 INFO L85 PathProgramCache]: Analyzing trace with hash -89717469, now seen corresponding path program 1 times [2021-11-12 23:13:53,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:13:53,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485750113] [2021-11-12 23:13:53,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:13:53,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:13:53,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:13:53,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:13:53,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:13:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:13:58,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:13:58,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:13:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-12 23:13:58,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:13:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:13:59,522 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:13:59,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485750113] [2021-11-12 23:13:59,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485750113] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:13:59,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:13:59,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2021-11-12 23:13:59,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445254552] [2021-11-12 23:13:59,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:13:59,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:13:59,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:13:59,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:13:59,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:13:59,529 INFO L87 Difference]: Start difference. First operand 118 states and 162 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 23:13:59,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:13:59,990 INFO L93 Difference]: Finished difference Result 205 states and 283 transitions. [2021-11-12 23:13:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:13:59,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2021-11-12 23:13:59,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:13:59,997 INFO L225 Difference]: With dead ends: 205 [2021-11-12 23:13:59,997 INFO L226 Difference]: Without dead ends: 118 [2021-11-12 23:13:59,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:14:00,000 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 335.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.68ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 402.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:14:00,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 597 Invalid, 97 Unknown, 0 Unchecked, 7.68ms Time], IncrementalHoareTripleChecker [38 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 402.81ms Time] [2021-11-12 23:14:00,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-12 23:14:00,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-12 23:14:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2021-11-12 23:14:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2021-11-12 23:14:00,020 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 86 [2021-11-12 23:14:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:14:00,021 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-11-12 23:14:00,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-12 23:14:00,021 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2021-11-12 23:14:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-12 23:14:00,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:14:00,024 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:14:00,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:14:00,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:14:00,243 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:14:00,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:14:00,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1258406584, now seen corresponding path program 2 times [2021-11-12 23:14:00,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:14:00,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816193736] [2021-11-12 23:14:00,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:14:00,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:14:00,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:14:00,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:14:00,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2defb951-bb2a-49a2-82c1-b928441d2aaf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process