./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:00:33,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:00:33,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:00:33,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:00:33,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:00:33,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:00:33,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:00:33,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:00:33,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:00:33,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:00:33,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:00:33,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:00:33,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:00:33,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:00:33,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:00:33,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:00:33,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:00:33,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:00:33,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:00:33,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:00:33,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:00:33,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:00:33,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:00:33,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:00:33,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:00:33,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:00:33,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:00:33,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:00:33,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:00:33,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:00:33,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:00:33,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:00:33,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:00:33,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:00:33,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:00:33,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:00:33,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:00:33,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:00:33,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:00:33,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:00:33,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:00:33,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:00:33,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:00:33,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:00:33,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:00:33,884 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:00:33,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:00:33,884 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:00:33,885 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:00:33,885 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:00:33,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:00:33,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:00:33,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:00:33,886 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:00:33,886 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:00:33,886 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:00:33,886 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:00:33,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:00:33,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:00:33,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:00:33,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:00:33,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:00:33,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:00:33,888 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:00:33,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:00:33,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:00:33,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:00:33,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:00:33,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:00:33,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:33,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:00:33,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:00:33,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:00:33,890 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:00:33,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:00:33,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:00:33,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:00:33,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:00:33,891 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc [2021-11-07 02:00:34,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:00:34,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:00:34,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:00:34,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:00:34,167 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:00:34,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-07 02:00:34,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/0428a5d31/0bc0032fe928431cab6ed1ee19846533/FLAG73e848049 [2021-11-07 02:00:35,003 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:00:35,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-07 02:00:35,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/0428a5d31/0bc0032fe928431cab6ed1ee19846533/FLAG73e848049 [2021-11-07 02:00:35,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/0428a5d31/0bc0032fe928431cab6ed1ee19846533 [2021-11-07 02:00:35,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:00:35,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:00:35,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:35,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:00:35,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:00:35,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:35" (1/1) ... [2021-11-07 02:00:35,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a78efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:35, skipping insertion in model container [2021-11-07 02:00:35,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:35" (1/1) ... [2021-11-07 02:00:35,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:00:35,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:00:35,971 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-07 02:00:35,981 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-07 02:00:36,005 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:00:36,010 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:00:36,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:36,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:37,315 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:00:37,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:00:37,317 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:00:37,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:00:37,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:00:37,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:00:37,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:00:37,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:00:37,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:00:37,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:00:37,498 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:00:37,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:37,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:37,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:37,737 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 02:00:37,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21cb1b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:37, skipping insertion in model container [2021-11-07 02:00:37,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:37,740 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:00:37,742 INFO L168 Benchmark]: Toolchain (without parser) took 2182.72 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 73.1 MB in the beginning and 60.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:37,743 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 115.3 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:00:37,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2170.93 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 73.1 MB in the beginning and 60.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:37,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 115.3 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2170.93 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 73.1 MB in the beginning and 60.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 37.9 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:00:39,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:00:39,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:00:39,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:00:39,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:00:39,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:00:39,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:00:39,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:00:39,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:00:39,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:00:39,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:00:39,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:00:39,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:00:39,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:00:39,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:00:39,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:00:39,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:00:39,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:00:39,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:00:39,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:00:39,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:00:39,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:00:39,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:00:39,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:00:39,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:00:39,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:00:39,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:00:39,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:00:39,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:00:39,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:00:39,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:00:39,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:00:39,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:00:39,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:00:39,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:00:39,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:00:39,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:00:39,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:00:39,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:00:39,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:00:39,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:00:39,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:00:40,018 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:00:40,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:00:40,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:00:40,020 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:00:40,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:00:40,020 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:00:40,021 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:00:40,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:00:40,021 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:00:40,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:00:40,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:00:40,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:00:40,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:00:40,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:00:40,024 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:00:40,024 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:00:40,025 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:00:40,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:00:40,025 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:00:40,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:00:40,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:00:40,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:00:40,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:00:40,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:40,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:00:40,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:00:40,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:00:40,032 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:00:40,033 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:00:40,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:00:40,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:00:40,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:00:40,034 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc [2021-11-07 02:00:40,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:00:40,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:00:40,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:00:40,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:00:40,479 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:00:40,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-07 02:00:40,545 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/143fac57e/080c63bee4b244c2b732c5c2740a492d/FLAG08de82219 [2021-11-07 02:00:41,373 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:00:41,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-07 02:00:41,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/143fac57e/080c63bee4b244c2b732c5c2740a492d/FLAG08de82219 [2021-11-07 02:00:41,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/data/143fac57e/080c63bee4b244c2b732c5c2740a492d [2021-11-07 02:00:41,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:00:41,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:00:41,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:41,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:00:41,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:00:41,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:41" (1/1) ... [2021-11-07 02:00:41,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7f52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:41, skipping insertion in model container [2021-11-07 02:00:41,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:41" (1/1) ... [2021-11-07 02:00:41,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:00:42,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:00:42,357 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-07 02:00:42,368 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-07 02:00:42,403 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:00:42,416 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:00:43,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,511 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:43,933 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:00:43,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:00:43,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:00:43,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:00:43,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:00:43,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:00:43,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:00:43,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:00:43,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:00:43,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:00:44,106 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:00:44,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:44,468 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:00:44,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:00:44,544 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-07 02:00:44,544 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-07 02:00:44,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:00:44,550 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:00:44,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:00:44,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:00:44,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:00:44,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:00:44,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:00:44,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:00:44,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:00:44,698 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:00:44,698 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:00:44,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:00:44,738 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:00:44,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:44,919 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:00:44,943 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-07 02:00:44,944 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_5408fd90-802a-4f4c-8728-9cfe7b6638ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-07 02:00:44,945 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:00:44,951 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:00:44,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:44,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:45,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:45,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:45,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:45,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:45,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:00:45,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:00:45,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:00:45,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:00:45,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:00:45,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:00:45,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:00:45,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:00:45,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:00:45,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:00:45,098 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:00:45,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:45,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:00:45,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:45,654 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:00:45,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45 WrapperNode [2021-11-07 02:00:45,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:45,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:00:45,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:00:45,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:00:45,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:45,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:45,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:00:45,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:00:45,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:00:45,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:00:45,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:45,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:45,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:45,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:46,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:46,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:46,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:46,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:00:46,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:00:46,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:00:46,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:00:46,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (1/1) ... [2021-11-07 02:00:46,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:46,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:00:46,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:00:46,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:00:46,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:00:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:00:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:00:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:00:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:00:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:00:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:00:46,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:00:46,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:00:46,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:00:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:01:01,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:01:01,404 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-11-07 02:01:01,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:01:01 BoogieIcfgContainer [2021-11-07 02:01:01,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:01:01,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:01:01,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:01:01,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:01:01,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:00:41" (1/3) ... [2021-11-07 02:01:01,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f972b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:01:01, skipping insertion in model container [2021-11-07 02:01:01,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:45" (2/3) ... [2021-11-07 02:01:01,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f972b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:01:01, skipping insertion in model container [2021-11-07 02:01:01,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:01:01" (3/3) ... [2021-11-07 02:01:01,419 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_trim_pred_harness.i [2021-11-07 02:01:01,425 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:01:01,425 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-07 02:01:01,487 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:01:01,493 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 02:01:01,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-07 02:01:01,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 212 states have (on average 1.4622641509433962) internal successors, (310), 221 states have internal predecessors, (310), 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 02:01:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:01:01,527 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:01,528 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] [2021-11-07 02:01:01,528 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:01:01,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:01,539 INFO L85 PathProgramCache]: Analyzing trace with hash 421514890, now seen corresponding path program 1 times [2021-11-07 02:01:01,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:01,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598959572] [2021-11-07 02:01:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:01,569 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:01,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:01,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:01,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:01:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:06,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:01:06,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:06,344 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 02:01:06,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:06,522 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 02:01:06,522 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:06,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598959572] [2021-11-07 02:01:06,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598959572] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:06,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:06,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:01:06,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297764440] [2021-11-07 02:01:06,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:01:06,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:06,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:01:06,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:01:06,553 INFO L87 Difference]: Start difference. First operand has 222 states, 212 states have (on average 1.4622641509433962) internal successors, (310), 221 states have internal predecessors, (310), 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 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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 02:01:06,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:06,597 INFO L93 Difference]: Finished difference Result 440 states and 615 transitions. [2021-11-07 02:01:06,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:01:06,599 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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 37 [2021-11-07 02:01:06,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:06,612 INFO L225 Difference]: With dead ends: 440 [2021-11-07 02:01:06,613 INFO L226 Difference]: Without dead ends: 215 [2021-11-07 02:01:06,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 02:01:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-07 02:01:06,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-07 02:01:06,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 206 states have (on average 1.3592233009708738) internal successors, (280), 214 states have internal predecessors, (280), 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 02:01:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 280 transitions. [2021-11-07 02:01:06,706 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 280 transitions. Word has length 37 [2021-11-07 02:01:06,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:06,707 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 280 transitions. [2021-11-07 02:01:06,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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 02:01:06,707 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 280 transitions. [2021-11-07 02:01:06,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:01:06,709 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:06,711 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 02:01:06,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:06,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:06,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:01:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash -664833379, now seen corresponding path program 1 times [2021-11-07 02:01:06,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:06,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167436404] [2021-11-07 02:01:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:06,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:06,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:06,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:06,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:01:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:11,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:01:11,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:11,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:11,735 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 02:01:11,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:11,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167436404] [2021-11-07 02:01:11,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167436404] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:11,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:11,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:01:11,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681963323] [2021-11-07 02:01:11,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:01:11,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:11,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:01:11,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:01:11,739 INFO L87 Difference]: Start difference. First operand 215 states and 280 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 02:01:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:12,169 INFO L93 Difference]: Finished difference Result 409 states and 533 transitions. [2021-11-07 02:01:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:01:12,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:01:12,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:12,173 INFO L225 Difference]: With dead ends: 409 [2021-11-07 02:01:12,173 INFO L226 Difference]: Without dead ends: 215 [2021-11-07 02:01:12,175 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 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 02:01:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-07 02:01:12,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-07 02:01:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 206 states have (on average 1.3446601941747574) internal successors, (277), 214 states have internal predecessors, (277), 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 02:01:12,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 277 transitions. [2021-11-07 02:01:12,202 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 277 transitions. Word has length 39 [2021-11-07 02:01:12,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:12,203 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 277 transitions. [2021-11-07 02:01:12,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 02:01:12,203 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 277 transitions. [2021-11-07 02:01:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 02:01:12,208 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:12,208 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] [2021-11-07 02:01:12,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:12,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:12,433 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:01:12,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:12,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2046081283, now seen corresponding path program 1 times [2021-11-07 02:01:12,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:12,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500406755] [2021-11-07 02:01:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:12,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:12,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:12,450 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:12,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:01:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:16,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:01:16,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:17,061 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 02:01:17,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:17,302 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 02:01:17,302 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:17,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500406755] [2021-11-07 02:01:17,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500406755] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:17,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:17,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:01:17,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088538615] [2021-11-07 02:01:17,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:01:17,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:17,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:01:17,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:01:17,305 INFO L87 Difference]: Start difference. First operand 215 states and 277 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 02:01:17,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:17,751 INFO L93 Difference]: Finished difference Result 376 states and 485 transitions. [2021-11-07 02:01:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:01:17,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2021-11-07 02:01:17,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:17,755 INFO L225 Difference]: With dead ends: 376 [2021-11-07 02:01:17,755 INFO L226 Difference]: Without dead ends: 215 [2021-11-07 02:01:17,757 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 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 02:01:17,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-07 02:01:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-07 02:01:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 206 states have (on average 1.3349514563106797) internal successors, (275), 214 states have internal predecessors, (275), 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 02:01:17,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 275 transitions. [2021-11-07 02:01:17,772 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 275 transitions. Word has length 43 [2021-11-07 02:01:17,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:17,773 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 275 transitions. [2021-11-07 02:01:17,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 02:01:17,773 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 275 transitions. [2021-11-07 02:01:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 02:01:17,774 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:17,775 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] [2021-11-07 02:01:17,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:17,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:17,997 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:01:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:17,997 INFO L85 PathProgramCache]: Analyzing trace with hash 226547298, now seen corresponding path program 1 times [2021-11-07 02:01:18,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:18,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578980140] [2021-11-07 02:01:18,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:18,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:18,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:18,006 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:18,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:01:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:22,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 02:01:22,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:22,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:23,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:01:23,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578980140] [2021-11-07 02:01:23,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578980140] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:23,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:23,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 02:01:23,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365569452] [2021-11-07 02:01:23,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:01:23,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:01:23,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:01:23,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:01:23,134 INFO L87 Difference]: Start difference. First operand 215 states and 275 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 02:01:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:23,592 INFO L93 Difference]: Finished difference Result 355 states and 454 transitions. [2021-11-07 02:01:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:01:23,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-11-07 02:01:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:23,595 INFO L225 Difference]: With dead ends: 355 [2021-11-07 02:01:23,595 INFO L226 Difference]: Without dead ends: 215 [2021-11-07 02:01:23,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:01:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-07 02:01:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-07 02:01:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 206 states have (on average 1.3300970873786409) internal successors, (274), 214 states have internal predecessors, (274), 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 02:01:23,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 274 transitions. [2021-11-07 02:01:23,607 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 274 transitions. Word has length 45 [2021-11-07 02:01:23,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:23,608 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 274 transitions. [2021-11-07 02:01:23,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 02:01:23,609 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 274 transitions. [2021-11-07 02:01:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 02:01:23,610 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:23,610 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] [2021-11-07 02:01:23,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:01:23,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:23,816 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 02:01:23,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:23,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1272350845, now seen corresponding path program 1 times [2021-11-07 02:01:23,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:01:23,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290953150] [2021-11-07 02:01:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:23,824 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:01:23,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:01:23,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:01:23,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5408fd90-802a-4f4c-8728-9cfe7b6638ff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:01:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:28,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 02:01:28,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:29,592 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 02:01:29,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:41,194 WARN L207 SmtUtils]: Spent 9.59 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 02:01:41,202 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 02:01:41,203 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 128 treesize of output 771