./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH --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 c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:34:07,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:34:07,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:34:07,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:34:07,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:34:07,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:34:07,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:34:07,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:34:07,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:34:07,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:34:07,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:34:07,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:34:07,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:34:07,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:34:07,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:34:07,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:34:07,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:34:07,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:34:07,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:34:07,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:34:07,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:34:07,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:34:07,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:34:07,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:34:07,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:34:07,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:34:07,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:34:07,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:34:07,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:34:07,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:34:07,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:34:07,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:34:07,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:34:07,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:34:07,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:34:07,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:34:07,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:34:07,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:34:07,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:34:07,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:34:07,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:34:07,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:34:07,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:34:07,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:34:07,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:34:07,776 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:34:07,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:34:07,776 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:34:07,777 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:34:07,777 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:34:07,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:34:07,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:34:07,778 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:34:07,778 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:34:07,778 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:34:07,779 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:34:07,779 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:34:07,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:34:07,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:34:07,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:34:07,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:34:07,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:34:07,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:34:07,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:34:07,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:34:07,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:34:07,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:34:07,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:34:07,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:34:07,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:34:07,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:34:07,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:34:07,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:34:07,784 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:34:07,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:34:07,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:34:07,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:34:07,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:34:07,785 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 [2021-11-03 05:34:08,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:34:08,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:34:08,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:34:08,057 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:34:08,058 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:34:08,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-03 05:34:08,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/d5782b883/34a3cc0607a24631b6570bdbbf1dea3d/FLAGcc6956762 [2021-11-03 05:34:08,924 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:34:08,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-03 05:34:08,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/d5782b883/34a3cc0607a24631b6570bdbbf1dea3d/FLAGcc6956762 [2021-11-03 05:34:09,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/d5782b883/34a3cc0607a24631b6570bdbbf1dea3d [2021-11-03 05:34:09,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:34:09,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:34:09,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:34:09,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:34:09,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:34:09,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:34:09" (1/1) ... [2021-11-03 05:34:09,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7b77a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:09, skipping insertion in model container [2021-11-03 05:34:09,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:34:09" (1/1) ... [2021-11-03 05:34:09,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:34:09,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:34:09,612 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-11-03 05:34:09,619 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-11-03 05:34:09,648 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:34:09,654 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:34:10,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:10,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:11,033 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:34:11,034 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:34:11,035 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:34:11,036 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:34:11,038 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:34:11,038 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:34:11,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:34:11,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:34:11,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:34:11,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:34:11,212 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:34:11,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:11,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:11,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:34:11,457 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) [2021-11-03 05:34:11,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79fd8ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:11, skipping insertion in model container [2021-11-03 05:34:11,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:34:11,459 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:34:11,462 INFO L168 Benchmark]: Toolchain (without parser) took 2301.71 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 80.2 MB in the beginning and 85.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:34:11,462 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 107.0 MB. Free memory is still 83.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:34:11,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2296.85 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 80.2 MB in the beginning and 85.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:34:11,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 107.0 MB. Free memory is still 83.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2296.85 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 80.2 MB in the beginning and 85.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6984]: 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH --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 c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:34:13,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:34:13,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:34:13,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:34:13,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:34:13,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:34:13,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:34:13,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:34:13,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:34:13,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:34:13,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:34:13,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:34:13,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:34:13,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:34:13,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:34:13,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:34:13,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:34:13,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:34:13,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:34:13,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:34:13,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:34:13,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:34:13,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:34:13,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:34:13,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:34:13,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:34:13,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:34:13,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:34:13,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:34:13,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:34:13,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:34:13,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:34:13,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:34:13,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:34:13,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:34:13,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:34:13,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:34:13,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:34:13,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:34:13,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:34:13,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:34:13,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:34:13,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:34:13,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:34:13,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:34:13,646 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:34:13,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:34:13,646 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:34:13,647 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:34:13,647 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:34:13,647 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:34:13,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:34:13,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:34:13,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:34:13,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:34:13,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:34:13,649 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:34:13,649 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:34:13,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:34:13,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:34:13,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:34:13,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:34:13,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:34:13,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:34:13,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:34:13,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:34:13,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:34:13,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:34:13,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:34:13,651 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:34:13,651 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:34:13,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:34:13,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:34:13,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:34:13,652 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c8100e1f648cee1922c84a2421989bafb670d4445ddc160c17e3cd878eaa49 [2021-11-03 05:34:14,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:34:14,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:34:14,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:34:14,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:34:14,081 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:34:14,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-03 05:34:14,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/3eb5f48af/5f6cd5ca686743d6aafc1fa03808096b/FLAG8a19a2e27 [2021-11-03 05:34:15,144 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:34:15,145 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i [2021-11-03 05:34:15,195 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/3eb5f48af/5f6cd5ca686743d6aafc1fa03808096b/FLAG8a19a2e27 [2021-11-03 05:34:15,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/data/3eb5f48af/5f6cd5ca686743d6aafc1fa03808096b [2021-11-03 05:34:15,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:34:15,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:34:15,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:34:15,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:34:15,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:34:15,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:34:15" (1/1) ... [2021-11-03 05:34:15,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23406256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:15, skipping insertion in model container [2021-11-03 05:34:15,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:34:15" (1/1) ... [2021-11-03 05:34:15,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:34:15,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:34:16,122 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-11-03 05:34:16,129 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-11-03 05:34:16,157 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:34:16,164 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:34:17,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:34:17,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:34:17,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:34:17,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:34:17,684 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:34:17,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:34:17,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:34:17,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:34:17,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:34:17,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:34:17,893 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:34:17,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:17,979 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:34:18,180 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:34:18,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:34:18,232 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-11-03 05:34:18,232 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-11-03 05:34:18,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:34:18,235 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:34:18,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,284 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,284 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:34:18,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:34:18,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:34:18,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:34:18,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:34:18,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:34:18,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:34:18,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:34:18,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:34:18,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:34:18,412 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:34:18,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:34:18,553 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:34:18,578 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4495,4508] [2021-11-03 05:34:18,578 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_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness.i[4555,4568] [2021-11-03 05:34:18,580 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:34:18,580 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:34:18,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:34:18,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:34:18,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:34:18,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:34:18,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:34:18,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:34:18,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:34:18,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:34:18,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:34:18,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:34:18,717 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:34:18,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:34:18,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:34:19,106 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:34:19,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19 WrapperNode [2021-11-03 05:34:19,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:34:19,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:34:19,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:34:19,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:34:19,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:34:19,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:34:19,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:34:19,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:34:19,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:34:19,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:34:19,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:34:19,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:34:19,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (1/1) ... [2021-11-03 05:34:19,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:34:19,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:34:19,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:34:19,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:34:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:34:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:34:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:34:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:34:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:34:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:34:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:34:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:34:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:34:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:34:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:34:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:34:34,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:34:34,215 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-03 05:34:34,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:34:34 BoogieIcfgContainer [2021-11-03 05:34:34,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:34:34,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:34:34,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:34:34,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:34:34,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:34:15" (1/3) ... [2021-11-03 05:34:34,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3050994e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:34:34, skipping insertion in model container [2021-11-03 05:34:34,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:34:19" (2/3) ... [2021-11-03 05:34:34,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3050994e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:34:34, skipping insertion in model container [2021-11-03 05:34:34,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:34:34" (3/3) ... [2021-11-03 05:34:34,225 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness.i [2021-11-03 05:34:34,230 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:34:34,230 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 05:34:34,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:34:34,279 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 [2021-11-03 05:34:34,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 05:34:34,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 05:34:34,299 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:34,300 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] [2021-11-03 05:34:34,300 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:34:34,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:34,306 INFO L85 PathProgramCache]: Analyzing trace with hash -34818233, now seen corresponding path program 1 times [2021-11-03 05:34:34,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:34,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668994705] [2021-11-03 05:34:34,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:34,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:34,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:34,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:34,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:34:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:38,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:34:38,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:38,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:38,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:38,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668994705] [2021-11-03 05:34:38,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668994705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:38,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:38,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:34:38,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092553142] [2021-11-03 05:34:38,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:34:38,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:34:38,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:34:38,511 INFO L87 Difference]: Start difference. First operand has 74 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 73 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-03 05:34:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:38,529 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2021-11-03 05:34:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:34:38,531 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-03 05:34:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:38,539 INFO L225 Difference]: With dead ends: 141 [2021-11-03 05:34:38,539 INFO L226 Difference]: Without dead ends: 69 [2021-11-03 05:34:38,541 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:34:38,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-03 05:34:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-03 05:34:38,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.323076923076923) internal successors, (86), 68 states have internal predecessors, (86), 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) [2021-11-03 05:34:38,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-11-03 05:34:38,574 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2021-11-03 05:34:38,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:38,575 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-11-03 05:34:38,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-03 05:34:38,575 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-11-03 05:34:38,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 05:34:38,577 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:38,577 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] [2021-11-03 05:34:38,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:34:38,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:38,790 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:34:38,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:38,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1661813309, now seen corresponding path program 1 times [2021-11-03 05:34:38,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:38,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055317377] [2021-11-03 05:34:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:38,796 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:38,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:38,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:38,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:34:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:42,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:34:42,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:42,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:42,963 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:42,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055317377] [2021-11-03 05:34:42,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055317377] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:42,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:42,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:34:42,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851726307] [2021-11-03 05:34:42,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:34:42,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:34:42,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:34:42,966 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-11-03 05:34:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:43,107 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2021-11-03 05:34:43,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:34:43,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-11-03 05:34:43,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:43,111 INFO L225 Difference]: With dead ends: 115 [2021-11-03 05:34:43,111 INFO L226 Difference]: Without dead ends: 69 [2021-11-03 05:34:43,112 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:34:43,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-03 05:34:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-03 05:34:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 68 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2021-11-03 05:34:43,120 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 25 [2021-11-03 05:34:43,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:43,120 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2021-11-03 05:34:43,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-11-03 05:34:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2021-11-03 05:34:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:34:43,125 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:43,126 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] [2021-11-03 05:34:43,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 05:34:43,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:43,342 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:34:43,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1724098915, now seen corresponding path program 1 times [2021-11-03 05:34:43,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:43,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648299857] [2021-11-03 05:34:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:43,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:43,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:43,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:43,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:34:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:47,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:34:47,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:47,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:47,579 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:47,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648299857] [2021-11-03 05:34:47,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648299857] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:47,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:47,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:34:47,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911656402] [2021-11-03 05:34:47,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:34:47,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:47,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:34:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:34:47,581 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 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) [2021-11-03 05:34:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:47,726 INFO L93 Difference]: Finished difference Result 168 states and 213 transitions. [2021-11-03 05:34:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:34:47,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 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 [2021-11-03 05:34:47,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:47,731 INFO L225 Difference]: With dead ends: 168 [2021-11-03 05:34:47,731 INFO L226 Difference]: Without dead ends: 113 [2021-11-03 05:34:47,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:34:47,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-03 05:34:47,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2021-11-03 05:34:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 72 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2021-11-03 05:34:47,742 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 37 [2021-11-03 05:34:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:47,742 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2021-11-03 05:34:47,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 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) [2021-11-03 05:34:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2021-11-03 05:34:47,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:34:47,744 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:47,744 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] [2021-11-03 05:34:47,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:34:47,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:47,946 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:34:47,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:47,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1864647525, now seen corresponding path program 1 times [2021-11-03 05:34:47,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:47,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370979110] [2021-11-03 05:34:47,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:47,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:47,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:47,952 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:47,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:34:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:51,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:34:51,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:51,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:52,030 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:52,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370979110] [2021-11-03 05:34:52,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370979110] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:52,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:52,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:34:52,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755525390] [2021-11-03 05:34:52,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:34:52,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:52,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:34:52,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:34:52,032 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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) [2021-11-03 05:34:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:52,336 INFO L93 Difference]: Finished difference Result 162 states and 201 transitions. [2021-11-03 05:34:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:34:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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 [2021-11-03 05:34:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:52,338 INFO L225 Difference]: With dead ends: 162 [2021-11-03 05:34:52,338 INFO L226 Difference]: Without dead ends: 113 [2021-11-03 05:34:52,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:34:52,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-03 05:34:52,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 77. [2021-11-03 05:34:52,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 76 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:52,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2021-11-03 05:34:52,346 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 37 [2021-11-03 05:34:52,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:52,346 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2021-11-03 05:34:52,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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) [2021-11-03 05:34:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2021-11-03 05:34:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:34:52,348 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:52,348 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] [2021-11-03 05:34:52,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:34:52,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:52,570 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:34:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:52,571 INFO L85 PathProgramCache]: Analyzing trace with hash 811988131, now seen corresponding path program 1 times [2021-11-03 05:34:52,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:52,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940023784] [2021-11-03 05:34:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:52,574 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:52,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:52,576 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:52,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:34:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:56,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:34:56,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:56,734 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 [2021-11-03 05:34:57,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:57,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:57,341 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 [2021-11-03 05:34:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:57,603 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:57,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940023784] [2021-11-03 05:34:57,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940023784] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:57,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:57,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-03 05:34:57,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863603369] [2021-11-03 05:34:57,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:34:57,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:57,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:34:57,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:34:57,605 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-11-03 05:35:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:07,587 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-11-03 05:35:07,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:35:07,589 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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 [2021-11-03 05:35:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:07,590 INFO L225 Difference]: With dead ends: 128 [2021-11-03 05:35:07,590 INFO L226 Difference]: Without dead ends: 77 [2021-11-03 05:35:07,591 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-11-03 05:35:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-03 05:35:07,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2021-11-03 05:35:07,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 72 states have internal predecessors, (86), 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) [2021-11-03 05:35:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2021-11-03 05:35:07,598 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 37 [2021-11-03 05:35:07,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:07,598 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2021-11-03 05:35:07,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-11-03 05:35:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2021-11-03 05:35:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:35:07,600 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:07,600 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] [2021-11-03 05:35:07,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 05:35:07,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:07,806 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:35:07,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash 70791141, now seen corresponding path program 1 times [2021-11-03 05:35:07,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:07,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308298707] [2021-11-03 05:35:07,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:07,811 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:07,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:07,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:07,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:35:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:11,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:35:11,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:12,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:12,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:12,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308298707] [2021-11-03 05:35:12,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308298707] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:12,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:12,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 05:35:12,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62612964] [2021-11-03 05:35:12,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:35:12,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:12,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:35:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:35:12,188 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-11-03 05:35:12,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:12,533 INFO L93 Difference]: Finished difference Result 128 states and 148 transitions. [2021-11-03 05:35:12,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 05:35:12,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 [2021-11-03 05:35:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:12,535 INFO L225 Difference]: With dead ends: 128 [2021-11-03 05:35:12,535 INFO L226 Difference]: Without dead ends: 73 [2021-11-03 05:35:12,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:35:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-03 05:35:12,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-03 05:35:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 72 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:12,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2021-11-03 05:35:12,540 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 45 [2021-11-03 05:35:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:12,541 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2021-11-03 05:35:12,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2021-11-03 05:35:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2021-11-03 05:35:12,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 05:35:12,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:12,552 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] [2021-11-03 05:35:12,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:12,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:12,765 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:35:12,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:12,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1141387003, now seen corresponding path program 1 times [2021-11-03 05:35:12,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:12,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15160943] [2021-11-03 05:35:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:12,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:12,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:12,770 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:12,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_530cafe5-d982-4cc0-bf22-dafa5dcc09e8/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:35:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:16,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 05:35:16,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:17,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:27,279 WARN L207 SmtUtils]: Spent 8.93 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 05:35:27,290 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 05:35:27,290 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 132 treesize of output 771