./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_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_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/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_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/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_2adfbeec-bb1a-4587-ba40-61c95e577455/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 b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:06:24,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:06:24,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:06:24,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:06:24,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:06:24,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:06:24,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:06:24,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:06:24,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:06:24,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:06:24,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:06:24,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:06:25,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:06:25,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:06:25,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:06:25,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:06:25,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:06:25,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:06:25,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:06:25,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:06:25,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:06:25,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:06:25,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:06:25,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:06:25,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:06:25,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:06:25,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:06:25,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:06:25,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:06:25,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:06:25,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:06:25,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:06:25,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:06:25,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:06:25,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:06:25,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:06:25,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:06:25,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:06:25,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:06:25,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:06:25,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:06:25,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:06:25,129 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:06:25,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:06:25,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:06:25,131 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:06:25,132 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:06:25,132 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:06:25,132 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:06:25,133 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:06:25,133 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:06:25,133 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:06:25,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:06:25,142 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:06:25,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:06:25,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:06:25,143 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:06:25,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:06:25,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:06:25,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:06:25,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:06:25,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:06:25,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:06:25,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:06:25,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:06:25,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:06:25,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:06:25,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:06:25,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:06:25,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:06:25,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:06:25,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:06:25,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:06:25,149 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:06:25,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:06:25,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:06:25,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:06:25,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:06:25,151 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_2adfbeec-bb1a-4587-ba40-61c95e577455/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 [2021-11-07 02:06:25,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:06:25,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:06:25,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:06:25,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:06:25,570 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:06:25,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-07 02:06:25,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/d452fa974/5555c55bfbd44313b898cb1db9b9a468/FLAG48e5124fc [2021-11-07 02:06:26,698 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:06:26,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-07 02:06:26,768 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/d452fa974/5555c55bfbd44313b898cb1db9b9a468/FLAG48e5124fc [2021-11-07 02:06:27,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/d452fa974/5555c55bfbd44313b898cb1db9b9a468 [2021-11-07 02:06:27,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:06:27,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:06:27,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:27,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:06:27,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:06:27,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:27" (1/1) ... [2021-11-07 02:06:27,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c267bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:27, skipping insertion in model container [2021-11-07 02:06:27,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:27" (1/1) ... [2021-11-07 02:06:27,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:06:27,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:06:27,704 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_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-07 02:06:27,715 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_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-07 02:06:27,746 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:06:27,752 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:06:28,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:28,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:29,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:06:29,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:06:29,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:06:29,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:06:29,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:06:29,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:06:29,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:06:29,559 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:06:29,561 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:06:29,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:06:29,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:06:29,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:29,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:29,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:29,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:30,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:30,119 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 02:06:30,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@32185d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:30, skipping insertion in model container [2021-11-07 02:06:30,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:30,121 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:06:30,124 INFO L168 Benchmark]: Toolchain (without parser) took 3058.52 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 45.9 MB in the beginning and 89.9 MB in the end (delta: -44.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:30,125 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:06:30,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3052.96 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 45.7 MB in the beginning and 89.9 MB in the end (delta: -44.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:30,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3052.96 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 45.7 MB in the beginning and 89.9 MB in the end (delta: -44.3 MB). Peak memory consumption was 32.3 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_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/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_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/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_2adfbeec-bb1a-4587-ba40-61c95e577455/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 b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:06:32,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:06:32,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:06:32,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:06:32,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:06:32,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:06:32,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:06:32,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:06:32,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:06:32,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:06:32,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:06:32,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:06:32,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:06:32,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:06:32,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:06:32,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:06:32,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:06:32,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:06:32,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:06:32,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:06:32,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:06:32,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:06:32,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:06:32,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:06:32,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:06:32,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:06:32,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:06:32,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:06:32,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:06:32,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:06:32,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:06:32,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:06:32,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:06:32,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:06:32,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:06:32,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:06:32,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:06:32,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:06:32,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:06:32,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:06:32,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:06:32,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:06:33,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:06:33,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:06:33,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:06:33,046 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:06:33,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:06:33,047 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:06:33,047 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:06:33,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:06:33,049 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:06:33,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:06:33,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:06:33,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:06:33,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:06:33,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:06:33,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:06:33,053 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:06:33,053 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:06:33,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:06:33,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:06:33,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:06:33,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:06:33,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:06:33,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:06:33,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:06:33,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:06:33,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:06:33,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:06:33,057 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:06:33,057 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:06:33,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:06:33,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:06:33,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:06:33,058 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_2adfbeec-bb1a-4587-ba40-61c95e577455/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e17fda858e874821809b4efef78fd91cf6fdf1723d3ff0faf91ee901e13b86 [2021-11-07 02:06:33,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:06:33,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:06:33,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:06:33,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:06:33,569 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:06:33,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-07 02:06:33,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/b937d8b1f/921ea41ffa27449c84f17211fea5e203/FLAGe4964ba66 [2021-11-07 02:06:34,755 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:06:34,756 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i [2021-11-07 02:06:34,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/b937d8b1f/921ea41ffa27449c84f17211fea5e203/FLAGe4964ba66 [2021-11-07 02:06:35,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/data/b937d8b1f/921ea41ffa27449c84f17211fea5e203 [2021-11-07 02:06:35,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:06:35,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:06:35,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:35,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:06:35,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:06:35,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:35" (1/1) ... [2021-11-07 02:06:35,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc5f38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:35, skipping insertion in model container [2021-11-07 02:06:35,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:06:35" (1/1) ... [2021-11-07 02:06:35,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:06:35,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:06:35,648 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-07 02:06:35,665 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_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-07 02:06:35,705 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:06:35,723 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:06:37,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:37,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:06:38,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:06:38,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:06:38,020 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:06:38,021 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:06:38,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:06:38,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:06:38,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:06:38,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:06:38,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:06:38,213 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:06:38,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:38,628 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:06:38,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:06:38,752 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_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-07 02:06:38,753 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_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-07 02:06:38,755 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:06:38,755 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:06:38,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:06:38,850 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:06:38,851 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:06:38,852 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:06:38,854 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:06:38,854 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:06:38,855 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:06:38,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:06:38,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:06:38,857 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:06:38,916 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:06:38,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:38,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:39,105 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:06:39,120 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_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4501,4514] [2021-11-07 02:06:39,120 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_2adfbeec-bb1a-4587-ba40-61c95e577455/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_dynamic_harness.i[4561,4574] [2021-11-07 02:06:39,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:06:39,123 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:06:39,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,208 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:06:39,246 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:06:39,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:06:39,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:06:39,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:06:39,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:06:39,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:06:39,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:06:39,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:06:39,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:06:39,273 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:06:39,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,288 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:06:39,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:06:39,896 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:06:39,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39 WrapperNode [2021-11-07 02:06:39,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:06:39,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:06:39,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:06:39,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:06:39,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:06:40,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:06:40,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:06:40,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:06:40,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:06:40,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:06:40,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:06:40,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:06:40,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (1/1) ... [2021-11-07 02:06:40,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:06:40,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:06:40,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:06:40,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:06:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:06:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:06:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:06:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:06:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:06:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:06:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:06:40,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:06:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:06:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:06:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 02:06:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:06:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:06:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:06:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:06:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:07:00,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:07:00,263 INFO L299 CfgBuilder]: Removed 228 assume(true) statements. [2021-11-07 02:07:00,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:07:00 BoogieIcfgContainer [2021-11-07 02:07:00,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:07:00,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:07:00,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:07:00,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:07:00,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:06:35" (1/3) ... [2021-11-07 02:07:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2902f948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:07:00, skipping insertion in model container [2021-11-07 02:07:00,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:06:39" (2/3) ... [2021-11-07 02:07:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2902f948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:07:00, skipping insertion in model container [2021-11-07 02:07:00,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:07:00" (3/3) ... [2021-11-07 02:07:00,277 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_dynamic_harness.i [2021-11-07 02:07:00,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:07:00,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-07 02:07:00,347 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:07:00,355 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:07:00,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-07 02:07:00,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 389 states have (on average 1.4601542416452442) internal successors, (568), 409 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:07:00,414 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:00,415 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:00,416 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:07:00,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:00,433 INFO L85 PathProgramCache]: Analyzing trace with hash -127780390, now seen corresponding path program 1 times [2021-11-07 02:07:00,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:00,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781529396] [2021-11-07 02:07:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:00,474 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:00,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:00,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:00,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:07:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:05,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:07:05,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:06,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:06,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:06,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781529396] [2021-11-07 02:07:06,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781529396] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:06,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:06,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:07:06,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182411956] [2021-11-07 02:07:06,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:07:06,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:06,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:07:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:07:06,289 INFO L87 Difference]: Start difference. First operand has 410 states, 389 states have (on average 1.4601542416452442) internal successors, (568), 409 states have internal predecessors, (568), 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 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:06,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:06,386 INFO L93 Difference]: Finished difference Result 813 states and 1127 transitions. [2021-11-07 02:07:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:07:06,388 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 02:07:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:06,411 INFO L225 Difference]: With dead ends: 813 [2021-11-07 02:07:06,411 INFO L226 Difference]: Without dead ends: 405 [2021-11-07 02:07:06,417 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:07:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-07 02:07:06,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2021-11-07 02:07:06,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 385 states have (on average 1.3324675324675326) internal successors, (513), 404 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 513 transitions. [2021-11-07 02:07:06,500 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 513 transitions. Word has length 39 [2021-11-07 02:07:06,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:06,500 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 513 transitions. [2021-11-07 02:07:06,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:06,501 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 513 transitions. [2021-11-07 02:07:06,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 02:07:06,503 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:06,503 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:06,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:07:06,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:06,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:07:06,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:06,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1892452164, now seen corresponding path program 1 times [2021-11-07 02:07:06,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:06,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419430523] [2021-11-07 02:07:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:06,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:06,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:06,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:06,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:07:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:12,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:07:12,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:12,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:12,647 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:12,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419430523] [2021-11-07 02:07:12,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419430523] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:12,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:12,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:07:12,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872412120] [2021-11-07 02:07:12,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:07:12,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:12,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:07:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:07:12,652 INFO L87 Difference]: Start difference. First operand 405 states and 513 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:13,174 INFO L93 Difference]: Finished difference Result 787 states and 995 transitions. [2021-11-07 02:07:13,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:07:13,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-07 02:07:13,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:13,180 INFO L225 Difference]: With dead ends: 787 [2021-11-07 02:07:13,180 INFO L226 Difference]: Without dead ends: 405 [2021-11-07 02:07:13,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:07:13,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-07 02:07:13,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2021-11-07 02:07:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 385 states have (on average 1.3246753246753247) internal successors, (510), 404 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:13,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 510 transitions. [2021-11-07 02:07:13,215 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 510 transitions. Word has length 41 [2021-11-07 02:07:13,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:13,216 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 510 transitions. [2021-11-07 02:07:13,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:13,216 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 510 transitions. [2021-11-07 02:07:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:07:13,219 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:13,219 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:13,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:13,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:13,436 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:07:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:13,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1022569822, now seen corresponding path program 1 times [2021-11-07 02:07:13,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:13,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219695392] [2021-11-07 02:07:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:13,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:13,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:13,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:13,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:07:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:18,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:07:18,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:18,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:19,209 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:19,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219695392] [2021-11-07 02:07:19,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219695392] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:19,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:19,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:07:19,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837837058] [2021-11-07 02:07:19,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:07:19,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:19,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:07:19,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:07:19,212 INFO L87 Difference]: Start difference. First operand 405 states and 510 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:19,936 INFO L93 Difference]: Finished difference Result 950 states and 1220 transitions. [2021-11-07 02:07:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:07:19,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2021-11-07 02:07:19,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:19,941 INFO L225 Difference]: With dead ends: 950 [2021-11-07 02:07:19,941 INFO L226 Difference]: Without dead ends: 559 [2021-11-07 02:07:19,943 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:07:19,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-11-07 02:07:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 419. [2021-11-07 02:07:19,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 399 states have (on average 1.31328320802005) internal successors, (524), 418 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 524 transitions. [2021-11-07 02:07:19,977 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 524 transitions. Word has length 53 [2021-11-07 02:07:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:19,978 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 524 transitions. [2021-11-07 02:07:19,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 524 transitions. [2021-11-07 02:07:19,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:07:19,981 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:19,981 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:20,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:20,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:20,208 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:07:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:20,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1446216544, now seen corresponding path program 1 times [2021-11-07 02:07:20,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:20,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956712252] [2021-11-07 02:07:20,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:20,213 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:20,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:20,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:20,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:07:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:25,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:07:25,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:25,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:25,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:25,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956712252] [2021-11-07 02:07:25,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956712252] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:25,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:25,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:07:25,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192932484] [2021-11-07 02:07:25,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:07:25,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:25,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:07:25,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:07:25,882 INFO L87 Difference]: Start difference. First operand 419 states and 524 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:27,058 INFO L93 Difference]: Finished difference Result 954 states and 1213 transitions. [2021-11-07 02:07:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:07:27,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2021-11-07 02:07:27,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:27,062 INFO L225 Difference]: With dead ends: 954 [2021-11-07 02:07:27,063 INFO L226 Difference]: Without dead ends: 559 [2021-11-07 02:07:27,064 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:07:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-11-07 02:07:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 433. [2021-11-07 02:07:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 413 states have (on average 1.3026634382566586) internal successors, (538), 432 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:27,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 538 transitions. [2021-11-07 02:07:27,083 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 538 transitions. Word has length 53 [2021-11-07 02:07:27,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:27,083 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 538 transitions. [2021-11-07 02:07:27,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 538 transitions. [2021-11-07 02:07:27,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:07:27,086 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:27,086 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:27,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:27,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:27,287 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:07:27,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1497261274, now seen corresponding path program 1 times [2021-11-07 02:07:27,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:27,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662243712] [2021-11-07 02:07:27,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:27,292 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:27,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:27,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:27,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:07:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:32,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 02:07:32,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:32,749 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 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 02:07:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:33,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:33,654 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 40 treesize of output 34 [2021-11-07 02:07:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:33,960 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:33,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662243712] [2021-11-07 02:07:33,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662243712] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:33,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:33,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-07 02:07:33,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515396903] [2021-11-07 02:07:33,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 02:07:33,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 02:07:33,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:07:33,963 INFO L87 Difference]: Start difference. First operand 433 states and 538 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:46,783 INFO L93 Difference]: Finished difference Result 888 states and 1109 transitions. [2021-11-07 02:07:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 02:07:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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 53 [2021-11-07 02:07:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:46,788 INFO L225 Difference]: With dead ends: 888 [2021-11-07 02:07:46,788 INFO L226 Difference]: Without dead ends: 481 [2021-11-07 02:07:46,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2021-11-07 02:07:46,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-07 02:07:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 431. [2021-11-07 02:07:46,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.3017031630170317) internal successors, (535), 430 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 535 transitions. [2021-11-07 02:07:46,806 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 535 transitions. Word has length 53 [2021-11-07 02:07:46,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:46,809 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 535 transitions. [2021-11-07 02:07:46,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:46,810 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 535 transitions. [2021-11-07 02:07:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 02:07:46,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:46,813 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:46,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:47,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:47,026 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:07:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1264130726, now seen corresponding path program 1 times [2021-11-07 02:07:47,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:47,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366944867] [2021-11-07 02:07:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:47,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:47,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:47,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:47,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:07:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:52,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:07:52,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:52,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:52,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:52,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:52,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366944867] [2021-11-07 02:07:52,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366944867] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:52,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:52,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 02:07:52,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597142565] [2021-11-07 02:07:52,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:07:52,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:52,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:07:52,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:07:52,615 INFO L87 Difference]: Start difference. First operand 431 states and 535 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:54,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:54,170 INFO L93 Difference]: Finished difference Result 1005 states and 1234 transitions. [2021-11-07 02:07:54,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:07:54,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-11-07 02:07:54,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:54,175 INFO L225 Difference]: With dead ends: 1005 [2021-11-07 02:07:54,175 INFO L226 Difference]: Without dead ends: 592 [2021-11-07 02:07:54,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:07:54,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-11-07 02:07:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 431. [2021-11-07 02:07:54,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.29683698296837) internal successors, (533), 430 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:54,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 533 transitions. [2021-11-07 02:07:54,197 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 533 transitions. Word has length 57 [2021-11-07 02:07:54,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:54,198 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 533 transitions. [2021-11-07 02:07:54,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:07:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 533 transitions. [2021-11-07 02:07:54,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 02:07:54,200 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:54,200 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:54,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:54,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:54,424 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:07:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1449621141, now seen corresponding path program 1 times [2021-11-07 02:07:54,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:54,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983236486] [2021-11-07 02:07:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:54,428 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:54,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:54,429 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:54,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:07:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:59,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:07:59,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:59,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:59,976 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:59,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983236486] [2021-11-07 02:07:59,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983236486] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:07:59,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:07:59,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:07:59,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025449326] [2021-11-07 02:07:59,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:07:59,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:59,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:07:59,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:07:59,978 INFO L87 Difference]: Start difference. First operand 431 states and 533 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:00,339 INFO L93 Difference]: Finished difference Result 817 states and 1010 transitions. [2021-11-07 02:08:00,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:08:00,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2021-11-07 02:08:00,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:00,344 INFO L225 Difference]: With dead ends: 817 [2021-11-07 02:08:00,344 INFO L226 Difference]: Without dead ends: 431 [2021-11-07 02:08:00,345 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:08:00,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-11-07 02:08:00,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2021-11-07 02:08:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.2919708029197081) internal successors, (531), 430 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:00,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 531 transitions. [2021-11-07 02:08:00,366 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 531 transitions. Word has length 59 [2021-11-07 02:08:00,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:00,366 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 531 transitions. [2021-11-07 02:08:00,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:00,367 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 531 transitions. [2021-11-07 02:08:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 02:08:00,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:00,368 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:00,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:08:00,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:00,592 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:08:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1668581274, now seen corresponding path program 1 times [2021-11-07 02:08:00,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:00,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287920017] [2021-11-07 02:08:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:00,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:00,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:00,597 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:00,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:08:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:06,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1843 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:08:06,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:06,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:06,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:06,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:08:06,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287920017] [2021-11-07 02:08:06,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287920017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:08:06,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:08:06,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:08:06,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488662757] [2021-11-07 02:08:06,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:08:06,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:08:06,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:08:06,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:08:06,650 INFO L87 Difference]: Start difference. First operand 431 states and 531 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:08:07,375 INFO L93 Difference]: Finished difference Result 783 states and 963 transitions. [2021-11-07 02:08:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:08:07,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2021-11-07 02:08:07,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:08:07,379 INFO L225 Difference]: With dead ends: 783 [2021-11-07 02:08:07,380 INFO L226 Difference]: Without dead ends: 431 [2021-11-07 02:08:07,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:08:07,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-11-07 02:08:07,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2021-11-07 02:08:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 411 states have (on average 1.2798053527980535) internal successors, (526), 430 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 526 transitions. [2021-11-07 02:08:07,406 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 526 transitions. Word has length 61 [2021-11-07 02:08:07,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:08:07,406 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 526 transitions. [2021-11-07 02:08:07,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:08:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 526 transitions. [2021-11-07 02:08:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 02:08:07,410 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:07,410 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:08:07,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:08:07,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:08:07,626 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 02:08:07,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:07,627 INFO L85 PathProgramCache]: Analyzing trace with hash 608472481, now seen corresponding path program 1 times [2021-11-07 02:08:07,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:07,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506332239] [2021-11-07 02:08:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:07,631 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:07,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:07,632 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:07,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2adfbeec-bb1a-4587-ba40-61c95e577455/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:08:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:08:13,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 02:08:13,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:08:14,150 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:08:14,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 02:08:14,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:08:14,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:08:25,841 WARN L207 SmtUtils]: Spent 10.33 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 02:08:25,849 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 02:08:25,850 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 129 treesize of output 772