./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:34:06,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:34:06,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:34:06,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:34:06,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:34:06,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:34:06,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:34:06,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:34:06,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:34:06,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:34:06,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:34:06,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:34:06,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:34:06,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:34:06,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:34:06,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:34:06,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:34:06,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:34:06,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:34:06,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:34:07,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:34:07,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:34:07,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:34:07,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:34:07,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:34:07,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:34:07,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:34:07,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:34:07,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:34:07,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:34:07,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:34:07,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:34:07,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:34:07,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:34:07,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:34:07,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:34:07,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:34:07,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:34:07,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:34:07,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:34:07,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:34:07,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:34:07,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:34:07,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:34:07,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:34:07,089 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:34:07,089 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:34:07,089 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:34:07,089 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:34:07,089 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:34:07,090 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:34:07,090 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:34:07,091 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:34:07,091 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:34:07,091 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:34:07,092 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:34:07,092 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:34:07,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:34:07,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:34:07,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:34:07,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:34:07,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:34:07,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:34:07,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:34:07,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:34:07,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:34:07,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:34:07,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:34:07,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:34:07,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:07,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:34:07,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:34:07,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:34:07,097 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:34:07,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:34:07,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:34:07,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:34:07,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:34:07,099 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 [2021-11-07 01:34:07,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:34:07,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:34:07,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:34:07,398 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:34:07,399 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:34:07,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2021-11-07 01:34:07,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/d0d9074be/05ba7c8ed3054baf8fec6337522aefc9/FLAG2706d5b71 [2021-11-07 01:34:08,343 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:34:08,344 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2021-11-07 01:34:08,391 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/d0d9074be/05ba7c8ed3054baf8fec6337522aefc9/FLAG2706d5b71 [2021-11-07 01:34:08,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/d0d9074be/05ba7c8ed3054baf8fec6337522aefc9 [2021-11-07 01:34:08,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:34:08,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:34:08,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:08,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:34:08,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:34:08,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:08" (1/1) ... [2021-11-07 01:34:08,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b5329c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:08, skipping insertion in model container [2021-11-07 01:34:08,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:08" (1/1) ... [2021-11-07 01:34:08,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:34:08,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:09,229 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2021-11-07 01:34:09,242 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2021-11-07 01:34:09,271 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:34:09,286 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:34:10,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,454 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:10,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:34:10,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:34:10,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:34:10,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:34:10,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:34:10,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:34:10,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:34:10,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:34:10,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:34:10,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:34:11,107 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:34:11,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:11,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:11,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:11,453 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:34:11,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b012b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:11, skipping insertion in model container [2021-11-07 01:34:11,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:11,456 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:34:11,459 INFO L168 Benchmark]: Toolchain (without parser) took 2698.45 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 61.6 MB in the beginning and 66.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:11,460 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:34:11,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2696.26 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 61.2 MB in the beginning and 66.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:11,465 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2696.26 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 61.2 MB in the beginning and 66.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:34:13,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:34:13,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:34:13,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:34:13,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:34:13,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:34:13,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:34:13,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:34:13,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:34:13,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:34:13,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:34:13,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:34:13,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:34:13,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:34:13,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:34:13,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:34:13,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:34:13,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:34:13,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:34:13,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:34:13,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:34:13,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:34:13,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:34:13,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:34:13,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:34:13,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:34:13,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:34:13,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:34:13,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:34:13,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:34:13,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:34:13,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:34:13,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:34:13,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:34:13,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:34:13,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:34:13,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:34:13,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:34:13,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:34:13,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:34:13,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:34:13,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:34:13,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:34:13,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:34:13,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:34:13,859 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:34:13,859 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:34:13,859 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:34:13,860 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:34:13,860 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:34:13,860 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:34:13,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:34:13,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:34:13,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:34:13,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:34:13,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:34:13,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:34:13,864 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:34:13,864 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:34:13,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:34:13,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:34:13,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:34:13,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:34:13,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:34:13,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:34:13,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:13,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:34:13,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:34:13,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:34:13,866 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:34:13,867 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:34:13,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:34:13,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:34:13,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:34:13,868 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 [2021-11-07 01:34:14,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:34:14,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:34:14,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:34:14,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:34:14,289 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:34:14,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2021-11-07 01:34:14,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/673302dc2/586b2cb422d1412bae458336f532864b/FLAG8413d442b [2021-11-07 01:34:15,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:34:15,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2021-11-07 01:34:15,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/673302dc2/586b2cb422d1412bae458336f532864b/FLAG8413d442b [2021-11-07 01:34:15,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/data/673302dc2/586b2cb422d1412bae458336f532864b [2021-11-07 01:34:15,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:34:15,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:34:15,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:15,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:34:15,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:34:15,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:15" (1/1) ... [2021-11-07 01:34:15,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ab4b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:15, skipping insertion in model container [2021-11-07 01:34:15,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:15" (1/1) ... [2021-11-07 01:34:15,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:34:15,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:16,197 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2021-11-07 01:34:16,206 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2021-11-07 01:34:16,230 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:34:16,235 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:34:17,179 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:17,716 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:34:17,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:34:17,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:34:17,723 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:34:17,726 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:34:17,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:34:17,731 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:34:17,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:34:17,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:34:17,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:34:17,912 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:34:18,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:18,199 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:34:18,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:18,281 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2021-11-07 01:34:18,282 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2021-11-07 01:34:18,283 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:34:18,284 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:34:18,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,320 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:34:18,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:34:18,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:34:18,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:34:18,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:34:18,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:34:18,374 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:34:18,374 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:34:18,375 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:34:18,375 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:34:18,396 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:34:18,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:18,531 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:34:18,544 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2021-11-07 01:34:18,545 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_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2021-11-07 01:34:18,546 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:34:18,547 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:34:18,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:34:18,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:34:18,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:34:18,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:34:18,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:34:18,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:34:18,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:34:18,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:34:18,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:34:18,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:34:18,685 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:34:18,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:34:18,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:19,074 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:34:19,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19 WrapperNode [2021-11-07 01:34:19,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:19,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:34:19,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:34:19,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:34:19,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:34:19,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:34:19,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:34:19,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:34:19,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:34:19,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:34:19,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:34:19,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:34:19,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (1/1) ... [2021-11-07 01:34:19,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:19,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:34:19,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:34:19,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:34:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:34:35,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:34:35,106 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-11-07 01:34:35,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:34:35 BoogieIcfgContainer [2021-11-07 01:34:35,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:34:35,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:34:35,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:34:35,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:34:35,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:34:15" (1/3) ... [2021-11-07 01:34:35,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1c7ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:34:35, skipping insertion in model container [2021-11-07 01:34:35,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:19" (2/3) ... [2021-11-07 01:34:35,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1c7ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:34:35, skipping insertion in model container [2021-11-07 01:34:35,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:34:35" (3/3) ... [2021-11-07 01:34:35,118 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_empty_array_harness.i [2021-11-07 01:34:35,125 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:34:35,125 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-07 01:34:35,191 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:34:35,196 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:34:35,197 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-07 01:34:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 77 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:34:35,219 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:35,220 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:35,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:34:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:35,228 INFO L85 PathProgramCache]: Analyzing trace with hash 810375617, now seen corresponding path program 1 times [2021-11-07 01:34:35,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:35,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747963023] [2021-11-07 01:34:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:35,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:35,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:35,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:35,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:34:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:39,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:34:39,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:39,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:39,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:39,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747963023] [2021-11-07 01:34:39,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747963023] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:39,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:39,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:34:39,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249995209] [2021-11-07 01:34:39,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:34:39,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:39,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:34:39,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:34:39,679 INFO L87 Difference]: Start difference. First operand has 78 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 77 states have internal predecessors, (104), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:39,700 INFO L93 Difference]: Finished difference Result 153 states and 204 transitions. [2021-11-07 01:34:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:34:39,701 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2021-11-07 01:34:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:39,710 INFO L225 Difference]: With dead ends: 153 [2021-11-07 01:34:39,710 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 01:34:39,713 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:34:39,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 01:34:39,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-07 01:34:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.328125) internal successors, (85), 70 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:39,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 85 transitions. [2021-11-07 01:34:39,756 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 85 transitions. Word has length 14 [2021-11-07 01:34:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:39,757 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 85 transitions. [2021-11-07 01:34:39,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2021-11-07 01:34:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:34:39,758 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:39,758 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:39,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:39,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:39,959 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:34:39,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:39,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1068541055, now seen corresponding path program 1 times [2021-11-07 01:34:39,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:39,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573830873] [2021-11-07 01:34:39,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:39,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:39,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:39,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:39,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:34:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:44,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:34:44,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:44,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:44,553 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:44,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573830873] [2021-11-07 01:34:44,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573830873] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:44,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:44,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:34:44,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544855067] [2021-11-07 01:34:44,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:44,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:44,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:44,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:44,557 INFO L87 Difference]: Start difference. First operand 71 states and 85 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:46,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:46,712 INFO L93 Difference]: Finished difference Result 120 states and 140 transitions. [2021-11-07 01:34:46,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:34:46,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-11-07 01:34:46,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:46,715 INFO L225 Difference]: With dead ends: 120 [2021-11-07 01:34:46,715 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 01:34:46,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 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 01:34:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 01:34:46,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-07 01:34:46,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.3125) internal successors, (84), 70 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2021-11-07 01:34:46,724 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 14 [2021-11-07 01:34:46,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:46,724 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2021-11-07 01:34:46,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:46,725 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2021-11-07 01:34:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 01:34:46,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:46,726 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] [2021-11-07 01:34:46,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:46,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:46,939 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:34:46,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:46,940 INFO L85 PathProgramCache]: Analyzing trace with hash -715146382, now seen corresponding path program 1 times [2021-11-07 01:34:46,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:46,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949307479] [2021-11-07 01:34:46,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:46,943 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:46,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:46,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:46,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:34:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:50,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:34:50,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:50,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:51,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:51,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949307479] [2021-11-07 01:34:51,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949307479] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:51,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:51,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:34:51,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175171288] [2021-11-07 01:34:51,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:51,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:51,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:51,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:51,105 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:54,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:54,866 INFO L93 Difference]: Finished difference Result 173 states and 214 transitions. [2021-11-07 01:34:54,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:34:54,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2021-11-07 01:34:54,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:54,868 INFO L225 Difference]: With dead ends: 173 [2021-11-07 01:34:54,868 INFO L226 Difference]: Without dead ends: 115 [2021-11-07 01:34:54,869 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:54,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-07 01:34:54,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 75. [2021-11-07 01:34:54,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 74 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 01:34:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2021-11-07 01:34:54,886 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 20 [2021-11-07 01:34:54,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:54,887 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2021-11-07 01:34:54,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:54,887 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2021-11-07 01:34:54,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 01:34:54,888 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:54,888 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] [2021-11-07 01:34:54,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:34:55,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:55,089 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:34:55,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:55,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1524493008, now seen corresponding path program 1 times [2021-11-07 01:34:55,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:55,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697356396] [2021-11-07 01:34:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:55,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:55,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:55,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:55,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:34:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:58,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:34:58,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:59,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:59,174 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:59,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697356396] [2021-11-07 01:34:59,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697356396] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:59,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:59,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:34:59,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813770749] [2021-11-07 01:34:59,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:34:59,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:59,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:34:59,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:34:59,177 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:05,453 INFO L93 Difference]: Finished difference Result 167 states and 202 transitions. [2021-11-07 01:35:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:35:05,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2021-11-07 01:35:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:05,455 INFO L225 Difference]: With dead ends: 167 [2021-11-07 01:35:05,456 INFO L226 Difference]: Without dead ends: 115 [2021-11-07 01:35:05,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:35:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-07 01:35:05,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 79. [2021-11-07 01:35:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 78 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 01:35:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2021-11-07 01:35:05,465 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 20 [2021-11-07 01:35:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:05,465 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2021-11-07 01:35:05,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2021-11-07 01:35:05,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 01:35:05,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:05,467 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] [2021-11-07 01:35:05,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:05,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:05,679 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:35:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:05,679 INFO L85 PathProgramCache]: Analyzing trace with hash -322119372, now seen corresponding path program 1 times [2021-11-07 01:35:05,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:05,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103149010] [2021-11-07 01:35:05,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:05,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:05,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:05,684 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:05,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:35:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:09,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 1717 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:35:09,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:09,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:09,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:09,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:09,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103149010] [2021-11-07 01:35:09,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103149010] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:09,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:09,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:35:09,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374094342] [2021-11-07 01:35:09,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:35:09,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:09,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:35:09,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:35:09,959 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:15,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:15,562 INFO L93 Difference]: Finished difference Result 139 states and 158 transitions. [2021-11-07 01:35:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:35:15,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 20 [2021-11-07 01:35:15,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:15,564 INFO L225 Difference]: With dead ends: 139 [2021-11-07 01:35:15,564 INFO L226 Difference]: Without dead ends: 135 [2021-11-07 01:35:15,564 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:35:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-07 01:35:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 87. [2021-11-07 01:35:15,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.25) internal successors, (100), 86 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2021-11-07 01:35:15,572 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 20 [2021-11-07 01:35:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:15,572 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2021-11-07 01:35:15,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2021-11-07 01:35:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:35:15,574 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:15,574 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] [2021-11-07 01:35:15,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:15,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:15,779 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:35:15,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:15,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2144800216, now seen corresponding path program 1 times [2021-11-07 01:35:15,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:15,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612235640] [2021-11-07 01:35:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:15,783 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:15,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:15,783 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:15,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:35:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:27,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:35:27,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:27,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:27,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:27,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:27,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:27,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:27,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:27,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:35:27,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 129 [2021-11-07 01:35:30,996 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:30,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 234 treesize of output 106 [2021-11-07 01:35:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:31,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:31,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:31,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:31,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:31,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:31,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:31,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:31,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:33,431 INFO L354 Elim1Store]: treesize reduction 9046, result has 0.0 percent of original size [2021-11-07 01:35:33,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 16 case distinctions, treesize of input 178 treesize of output 1 [2021-11-07 01:35:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:33,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:33,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612235640] [2021-11-07 01:35:33,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612235640] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:33,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:33,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-11-07 01:35:33,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423634872] [2021-11-07 01:35:33,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:35:33,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:33,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:35:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:35:33,463 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:44,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:44,605 INFO L93 Difference]: Finished difference Result 153 states and 174 transitions. [2021-11-07 01:35:44,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:35:44,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 24 [2021-11-07 01:35:44,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:44,608 INFO L225 Difference]: With dead ends: 153 [2021-11-07 01:35:44,608 INFO L226 Difference]: Without dead ends: 94 [2021-11-07 01:35:44,609 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:35:44,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-07 01:35:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2021-11-07 01:35:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 88 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 102 transitions. [2021-11-07 01:35:44,617 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 102 transitions. Word has length 24 [2021-11-07 01:35:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:44,617 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 102 transitions. [2021-11-07 01:35:44,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 102 transitions. [2021-11-07 01:35:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:35:44,619 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:44,619 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] [2021-11-07 01:35:44,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:44,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:44,834 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:35:44,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:44,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1464741846, now seen corresponding path program 1 times [2021-11-07 01:35:44,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:44,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024503644] [2021-11-07 01:35:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:44,837 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:44,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:44,838 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:44,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:35:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:48,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:35:48,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:49,103 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:35:49,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 204 treesize of output 60 [2021-11-07 01:35:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:49,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:49,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:49,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024503644] [2021-11-07 01:35:49,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024503644] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:49,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:49,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:35:49,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373800311] [2021-11-07 01:35:49,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:35:49,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:49,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:35:49,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:35:49,545 INFO L87 Difference]: Start difference. First operand 89 states and 102 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:36:03,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:36:03,203 INFO L93 Difference]: Finished difference Result 206 states and 231 transitions. [2021-11-07 01:36:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:36:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 24 [2021-11-07 01:36:03,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:36:03,206 INFO L225 Difference]: With dead ends: 206 [2021-11-07 01:36:03,206 INFO L226 Difference]: Without dead ends: 143 [2021-11-07 01:36:03,207 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:36:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-07 01:36:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 95. [2021-11-07 01:36:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 94 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:36:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-11-07 01:36:03,218 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 24 [2021-11-07 01:36:03,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:36:03,219 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-11-07 01:36:03,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:36:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-11-07 01:36:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:36:03,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:36:03,220 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] [2021-11-07 01:36:03,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:36:03,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:36:03,435 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:36:03,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:36:03,435 INFO L85 PathProgramCache]: Analyzing trace with hash -711790034, now seen corresponding path program 1 times [2021-11-07 01:36:03,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:36:03,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340539986] [2021-11-07 01:36:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:36:03,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:36:03,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:36:03,441 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:36:03,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:36:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:36:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 01:36:16,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:36:17,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:36:17,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:36:17,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:36:17,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:36:17,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:36:17,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:36:17,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:36:17,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 135 [2021-11-07 01:36:17,599 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:36:17,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 240 treesize of output 112 [2021-11-07 01:36:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:36:17,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:36:18,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:18,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:18,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:18,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:18,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:18,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:18,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:23,068 INFO L354 Elim1Store]: treesize reduction 8880, result has 1.8 percent of original size [2021-11-07 01:36:23,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 16 case distinctions, treesize of input 181 treesize of output 233 [2021-11-07 01:36:23,098 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-07 01:36:23,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 233 treesize of output 91 [2021-11-07 01:36:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:36:23,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:36:23,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340539986] [2021-11-07 01:36:23,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340539986] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:36:23,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:36:23,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-11-07 01:36:23,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096084328] [2021-11-07 01:36:23,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:36:23,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:36:23,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:36:23,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:36:23,197 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:36:28,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:36:28,997 INFO L93 Difference]: Finished difference Result 209 states and 238 transitions. [2021-11-07 01:36:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:36:28,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 24 [2021-11-07 01:36:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:36:29,000 INFO L225 Difference]: With dead ends: 209 [2021-11-07 01:36:29,000 INFO L226 Difference]: Without dead ends: 130 [2021-11-07 01:36:29,001 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:36:29,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-07 01:36:29,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 98. [2021-11-07 01:36:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 97 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:36:29,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2021-11-07 01:36:29,016 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 24 [2021-11-07 01:36:29,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:36:29,017 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2021-11-07 01:36:29,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:36:29,017 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2021-11-07 01:36:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:36:29,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:36:29,018 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] [2021-11-07 01:36:29,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:36:29,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:36:29,223 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 01:36:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:36:29,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1994829360, now seen corresponding path program 1 times [2021-11-07 01:36:29,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:36:29,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574667822] [2021-11-07 01:36:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:36:29,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:36:29,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:36:29,228 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:36:29,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d3cec7d-b006-46c8-a0d8-d6cf1fec6125/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:39:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:55,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:39:55,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:55,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 83 [2021-11-07 01:39:55,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 22 [2021-11-07 01:39:55,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-07 01:39:55,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:55,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-07 01:39:55,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:55,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 707 [2021-11-07 01:39:55,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 707 treesize of output 676 [2021-11-07 01:39:55,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 153 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 127 [2021-11-07 01:39:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:56,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:09,044 WARN L207 SmtUtils]: Spent 12.83 s on a formula simplification. DAG size of input: 207 DAG size of output: 10 [2021-11-07 01:40:09,045 INFO L354 Elim1Store]: treesize reduction 1526, result has 0.7 percent of original size [2021-11-07 01:40:09,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 420 treesize of output 332 [2021-11-07 01:40:10,541 INFO L354 Elim1Store]: treesize reduction 1526, result has 0.7 percent of original size [2021-11-07 01:40:10,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 332 treesize of output 244 [2021-11-07 01:40:11,391 INFO L354 Elim1Store]: treesize reduction 1602, result has 0.6 percent of original size [2021-11-07 01:40:11,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 244 treesize of output 151 [2021-11-07 01:40:11,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 143 [2021-11-07 01:40:11,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:11,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 436 [2021-11-07 01:40:11,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 418 [2021-11-07 01:40:11,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2200452372 treesize of output 2199403792