./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash de3da06dbfc8734cb93dce42b312357899e8d9cc914b94ba94740650fa2d8258 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:51,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:51,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:51,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:51,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:51,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:51,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:51,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:51,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:51,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:51,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:51,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:51,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:51,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:51,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:51,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:51,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:51,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:51,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:51,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:51,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:51,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:51,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:51,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:51,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:51,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:51,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:51,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:51,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:51,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:51,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:51,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:51,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:51,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:51,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:51,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:51,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:51,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:51,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:51,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:51,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:51,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:58:51,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:51,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:51,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:51,850 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:51,851 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:51,851 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:51,851 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:58:51,851 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:51,852 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:51,852 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:58:51,853 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:58:51,853 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:51,854 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:58:51,854 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:58:51,854 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:58:51,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:51,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:58:51,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:51,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:51,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:51,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:51,856 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:51,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:51,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:51,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:51,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:51,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:51,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:51,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:51,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:51,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:51,859 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:58:51,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:58:51,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:51,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:51,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:51,860 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_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de3da06dbfc8734cb93dce42b312357899e8d9cc914b94ba94740650fa2d8258 [2021-11-07 00:58:52,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:52,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:52,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:52,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:52,153 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:52,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i [2021-11-07 00:58:52,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/4b1b793a7/3bc03158a3eb4d77a9c256a5708e6627/FLAGf8d3a4f93 [2021-11-07 00:58:53,078 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:53,078 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i [2021-11-07 00:58:53,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/4b1b793a7/3bc03158a3eb4d77a9c256a5708e6627/FLAGf8d3a4f93 [2021-11-07 00:58:53,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/4b1b793a7/3bc03158a3eb4d77a9c256a5708e6627 [2021-11-07 00:58:53,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:58:53,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:58:53,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:53,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:58:53,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:58:53,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:53" (1/1) ... [2021-11-07 00:58:53,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f46d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:53, skipping insertion in model container [2021-11-07 00:58:53,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:53" (1/1) ... [2021-11-07 00:58:53,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:58:53,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:53,660 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4494,4507] [2021-11-07 00:58:53,672 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4554,4567] [2021-11-07 00:58:53,701 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:58:53,715 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:58:54,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:54,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:55,177 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:58:55,179 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:58:55,180 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:58:55,181 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:58:55,183 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:58:55,184 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:58:55,185 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:58:55,185 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:58:55,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:58:55,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:58:55,403 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:58:55,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:55,449 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:55,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:55,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:58:55,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:55,673 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:58:55,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28d93fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55, skipping insertion in model container [2021-11-07 00:58:55,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:55,674 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:58:55,677 INFO L168 Benchmark]: Toolchain (without parser) took 2459.32 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 77.6 MB in the beginning and 79.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:55,678 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory was 80.5 MB in the beginning and 80.4 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:58:55,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2456.57 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 77.3 MB in the beginning and 79.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:55,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory was 80.5 MB in the beginning and 80.4 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2456.57 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 77.3 MB in the beginning and 79.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash de3da06dbfc8734cb93dce42b312357899e8d9cc914b94ba94740650fa2d8258 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:58,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:58,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:58,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:58,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:58,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:58,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:58,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:58,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:58,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:58,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:58,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:58,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:58,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:58,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:58,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:58,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:58,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:58,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:58,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:58,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:58,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:58,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:58,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:58,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:58,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:58,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:58,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:58,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:58,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:58,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:58,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:58,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:58,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:58,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:58,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:58,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:58,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:58,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:58,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:58,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:58,141 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:58:58,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:58,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:58,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:58,190 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:58,191 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:58,191 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:58,191 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:58,191 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:58,192 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:58,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:58,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:58,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:58,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:58,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:58,195 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:58,195 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:58:58,196 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:58:58,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:58,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:58,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:58,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:58,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:58:58,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:58,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:58,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:58,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:58,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:58,198 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:58:58,198 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:58:58,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:58,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:58,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:58,199 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_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de3da06dbfc8734cb93dce42b312357899e8d9cc914b94ba94740650fa2d8258 [2021-11-07 00:58:58,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:58,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:58,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:58,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:58,592 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:58,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i [2021-11-07 00:58:58,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/503a368f5/06700f18132648e8841bbe8aa4e5ce88/FLAGe9d762623 [2021-11-07 00:58:59,533 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:59,535 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i [2021-11-07 00:58:59,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/503a368f5/06700f18132648e8841bbe8aa4e5ce88/FLAGe9d762623 [2021-11-07 00:59:00,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/data/503a368f5/06700f18132648e8841bbe8aa4e5ce88 [2021-11-07 00:59:00,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:59:00,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:59:00,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:00,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:59:00,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:59:00,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:00" (1/1) ... [2021-11-07 00:59:00,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd4bd15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:00, skipping insertion in model container [2021-11-07 00:59:00,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:00" (1/1) ... [2021-11-07 00:59:00,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:59:00,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:00,513 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4494,4507] [2021-11-07 00:59:00,519 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4554,4567] [2021-11-07 00:59:00,543 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:59:00,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:59:01,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,876 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:01,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:59:02,385 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:59:02,387 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:59:02,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:59:02,395 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:59:02,397 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:59:02,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:59:02,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:59:02,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:59:02,405 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:59:02,582 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:59:02,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:02,834 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:59:02,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:02,900 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4494,4507] [2021-11-07 00:59:02,901 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4554,4567] [2021-11-07 00:59:02,903 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:59:02,903 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:59:02,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:02,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:59:03,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:59:03,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:59:03,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:59:03,013 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:59:03,017 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:59:03,018 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:59:03,018 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:59:03,019 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:59:03,019 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:59:03,083 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:59:03,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:03,276 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:59:03,301 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4494,4507] [2021-11-07 00:59:03,301 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_4ca2b445-3740-42b0-97c7-45f370451923/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness.i[4554,4567] [2021-11-07 00:59:03,330 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:59:03,331 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:59:03,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,411 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:59:03,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:59:03,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:59:03,413 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:59:03,414 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:59:03,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:59:03,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:59:03,416 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:59:03,416 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:59:03,417 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:59:03,438 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:59:03,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:59:03,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:03,960 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:59:03,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03 WrapperNode [2021-11-07 00:59:03,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:03,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:03,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:59:03,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:59:03,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:04,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:59:04,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:59:04,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:59:04,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:59:04,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:59:04,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:59:04,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:59:04,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (1/1) ... [2021-11-07 00:59:04,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:04,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:59:04,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:59:04,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:59:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:59:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:59:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:59:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:59:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:59:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:59:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:59:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:59:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:59:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:59:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:59:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:59:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:59:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:59:19,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:59:19,300 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-11-07 00:59:19,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:19 BoogieIcfgContainer [2021-11-07 00:59:19,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:59:19,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:59:19,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:59:19,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:59:19,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:59:00" (1/3) ... [2021-11-07 00:59:19,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b92def3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:19, skipping insertion in model container [2021-11-07 00:59:19,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:03" (2/3) ... [2021-11-07 00:59:19,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b92def3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:19, skipping insertion in model container [2021-11-07 00:59:19,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:19" (3/3) ... [2021-11-07 00:59:19,313 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reserve_harness.i [2021-11-07 00:59:19,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:59:19,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 00:59:19,381 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:59:19,387 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:59:19,388 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 00:59:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 190 states have (on average 1.4789473684210526) internal successors, (281), 200 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:19,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 00:59:19,426 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:19,427 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] [2021-11-07 00:59:19,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:59:19,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash -478674777, now seen corresponding path program 1 times [2021-11-07 00:59:19,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:19,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412554284] [2021-11-07 00:59:19,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:19,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:19,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:19,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:19,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:59:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:23,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:59:23,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:23,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:23,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:23,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412554284] [2021-11-07 00:59:23,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412554284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:23,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:23,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:59:23,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084712980] [2021-11-07 00:59:23,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:59:23,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:23,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:59:23,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:59:23,831 INFO L87 Difference]: Start difference. First operand has 201 states, 190 states have (on average 1.4789473684210526) internal successors, (281), 200 states have internal predecessors, (281), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:23,868 INFO L93 Difference]: Finished difference Result 395 states and 553 transitions. [2021-11-07 00:59:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:59:23,869 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2021-11-07 00:59:23,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:23,881 INFO L225 Difference]: With dead ends: 395 [2021-11-07 00:59:23,881 INFO L226 Difference]: Without dead ends: 194 [2021-11-07 00:59:23,884 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:59:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-07 00:59:23,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-11-07 00:59:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 184 states have (on average 1.358695652173913) internal successors, (250), 193 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 250 transitions. [2021-11-07 00:59:23,946 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 250 transitions. Word has length 22 [2021-11-07 00:59:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:23,946 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 250 transitions. [2021-11-07 00:59:23,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 250 transitions. [2021-11-07 00:59:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 00:59:23,948 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:23,948 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] [2021-11-07 00:59:23,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:24,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:24,150 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:59:24,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:24,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2067022679, now seen corresponding path program 1 times [2021-11-07 00:59:24,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:24,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002976880] [2021-11-07 00:59:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:24,155 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:24,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:24,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:24,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:59:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:28,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:59:28,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:28,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:28,474 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:28,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002976880] [2021-11-07 00:59:28,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002976880] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:28,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:28,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 00:59:28,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743921408] [2021-11-07 00:59:28,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:59:28,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:28,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:59:28,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:59:28,478 INFO L87 Difference]: Start difference. First operand 194 states and 250 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:28,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:28,849 INFO L93 Difference]: Finished difference Result 365 states and 469 transitions. [2021-11-07 00:59:28,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:28,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-11-07 00:59:28,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:28,852 INFO L225 Difference]: With dead ends: 365 [2021-11-07 00:59:28,853 INFO L226 Difference]: Without dead ends: 194 [2021-11-07 00:59:28,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-07 00:59:28,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-11-07 00:59:28,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 184 states have (on average 1.3478260869565217) internal successors, (248), 193 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:28,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 248 transitions. [2021-11-07 00:59:28,872 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 248 transitions. Word has length 22 [2021-11-07 00:59:28,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:28,872 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 248 transitions. [2021-11-07 00:59:28,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 248 transitions. [2021-11-07 00:59:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 00:59:28,874 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:28,874 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] [2021-11-07 00:59:28,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:29,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:29,094 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:59:29,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash 921090108, now seen corresponding path program 1 times [2021-11-07 00:59:29,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:29,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446465403] [2021-11-07 00:59:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:29,100 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:29,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:29,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:29,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:59:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:33,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 00:59:33,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:33,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:33,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:33,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:33,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446465403] [2021-11-07 00:59:33,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446465403] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:33,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:33,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 00:59:33,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218945264] [2021-11-07 00:59:33,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:59:33,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:33,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:59:33,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:59:33,695 INFO L87 Difference]: Start difference. First operand 194 states and 248 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:34,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:34,147 INFO L93 Difference]: Finished difference Result 506 states and 665 transitions. [2021-11-07 00:59:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:59:34,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-11-07 00:59:34,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:34,150 INFO L225 Difference]: With dead ends: 506 [2021-11-07 00:59:34,151 INFO L226 Difference]: Without dead ends: 326 [2021-11-07 00:59:34,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:34,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-07 00:59:34,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 206. [2021-11-07 00:59:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 196 states have (on average 1.3265306122448979) internal successors, (260), 205 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:34,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions. [2021-11-07 00:59:34,171 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 28 [2021-11-07 00:59:34,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:34,172 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 260 transitions. [2021-11-07 00:59:34,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions. [2021-11-07 00:59:34,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 00:59:34,173 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:34,174 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] [2021-11-07 00:59:34,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:34,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:34,390 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:59:34,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:34,391 INFO L85 PathProgramCache]: Analyzing trace with hash -99978246, now seen corresponding path program 1 times [2021-11-07 00:59:34,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:34,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89803733] [2021-11-07 00:59:34,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:34,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:34,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:34,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:34,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:59:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:38,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:38,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:38,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:38,721 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:38,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89803733] [2021-11-07 00:59:38,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89803733] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:38,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:38,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 00:59:38,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490535296] [2021-11-07 00:59:38,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:59:38,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:38,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:59:38,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:38,723 INFO L87 Difference]: Start difference. First operand 206 states and 260 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:39,607 INFO L93 Difference]: Finished difference Result 508 states and 657 transitions. [2021-11-07 00:59:39,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 00:59:39,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-11-07 00:59:39,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:39,610 INFO L225 Difference]: With dead ends: 508 [2021-11-07 00:59:39,610 INFO L226 Difference]: Without dead ends: 326 [2021-11-07 00:59:39,611 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 00:59:39,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-07 00:59:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 218. [2021-11-07 00:59:39,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.3076923076923077) internal successors, (272), 217 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 272 transitions. [2021-11-07 00:59:39,663 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 272 transitions. Word has length 28 [2021-11-07 00:59:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:39,664 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 272 transitions. [2021-11-07 00:59:39,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 272 transitions. [2021-11-07 00:59:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 00:59:39,666 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:39,666 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] [2021-11-07 00:59:39,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:39,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:39,867 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:59:39,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1379732482, now seen corresponding path program 1 times [2021-11-07 00:59:39,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:39,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280656705] [2021-11-07 00:59:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:39,872 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:39,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:39,873 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:39,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:59:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:43,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 00:59:43,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:44,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 00:59:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:44,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:44,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 00:59:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:45,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:45,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280656705] [2021-11-07 00:59:45,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280656705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:45,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:45,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-07 00:59:45,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857621588] [2021-11-07 00:59:45,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 00:59:45,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:45,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 00:59:45,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-07 00:59:45,076 INFO L87 Difference]: Start difference. First operand 218 states and 272 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:52,126 INFO L93 Difference]: Finished difference Result 557 states and 692 transitions. [2021-11-07 00:59:52,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 00:59:52,128 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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 28 [2021-11-07 00:59:52,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:52,130 INFO L225 Difference]: With dead ends: 557 [2021-11-07 00:59:52,131 INFO L226 Difference]: Without dead ends: 365 [2021-11-07 00:59:52,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2021-11-07 00:59:52,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-07 00:59:52,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 258. [2021-11-07 00:59:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.314516129032258) internal successors, (326), 257 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 326 transitions. [2021-11-07 00:59:52,145 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 326 transitions. Word has length 28 [2021-11-07 00:59:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:52,145 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 326 transitions. [2021-11-07 00:59:52,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 326 transitions. [2021-11-07 00:59:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 00:59:52,147 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:52,148 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] [2021-11-07 00:59:52,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:52,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:52,354 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:59:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:52,355 INFO L85 PathProgramCache]: Analyzing trace with hash -153997134, now seen corresponding path program 1 times [2021-11-07 00:59:52,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:52,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709693367] [2021-11-07 00:59:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:52,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:52,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:52,360 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:52,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:59:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:56,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 00:59:56,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:56,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:56,669 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:56,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709693367] [2021-11-07 00:59:56,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709693367] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:56,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:56,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 00:59:56,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718802693] [2021-11-07 00:59:56,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 00:59:56,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:56,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 00:59:56,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:59:56,672 INFO L87 Difference]: Start difference. First operand 258 states and 326 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:57,477 INFO L93 Difference]: Finished difference Result 627 states and 775 transitions. [2021-11-07 00:59:57,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 00:59:57,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2021-11-07 00:59:57,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:57,480 INFO L225 Difference]: With dead ends: 627 [2021-11-07 00:59:57,480 INFO L226 Difference]: Without dead ends: 392 [2021-11-07 00:59:57,481 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 00:59:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-11-07 00:59:57,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 258. [2021-11-07 00:59:57,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.310483870967742) internal successors, (325), 257 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 325 transitions. [2021-11-07 00:59:57,493 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 325 transitions. Word has length 32 [2021-11-07 00:59:57,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:57,493 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 325 transitions. [2021-11-07 00:59:57,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:57,493 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 325 transitions. [2021-11-07 00:59:57,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 00:59:57,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:57,495 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] [2021-11-07 00:59:57,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:57,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:57,702 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:59:57,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:57,702 INFO L85 PathProgramCache]: Analyzing trace with hash 586659405, now seen corresponding path program 1 times [2021-11-07 00:59:57,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:57,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676966591] [2021-11-07 00:59:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:57,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:57,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:57,707 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:57,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:00:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:01,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:00:01,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:01,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:01,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:02,130 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:02,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676966591] [2021-11-07 01:00:02,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676966591] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:02,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:02,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:00:02,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285761006] [2021-11-07 01:00:02,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:00:02,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:00:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:00:02,133 INFO L87 Difference]: Start difference. First operand 258 states and 325 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:02,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:02,367 INFO L93 Difference]: Finished difference Result 522 states and 634 transitions. [2021-11-07 01:00:02,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:00:02,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 34 [2021-11-07 01:00:02,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:02,372 INFO L225 Difference]: With dead ends: 522 [2021-11-07 01:00:02,372 INFO L226 Difference]: Without dead ends: 458 [2021-11-07 01:00:02,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:00:02,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-11-07 01:00:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 262. [2021-11-07 01:00:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 252 states have (on average 1.3055555555555556) internal successors, (329), 261 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 329 transitions. [2021-11-07 01:00:02,388 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 329 transitions. Word has length 34 [2021-11-07 01:00:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:02,388 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 329 transitions. [2021-11-07 01:00:02,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:02,389 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 329 transitions. [2021-11-07 01:00:02,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:00:02,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:02,391 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] [2021-11-07 01:00:02,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:02,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:02,614 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:00:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:02,614 INFO L85 PathProgramCache]: Analyzing trace with hash -53699786, now seen corresponding path program 1 times [2021-11-07 01:00:02,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:02,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416339284] [2021-11-07 01:00:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:02,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:02,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:02,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:02,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:00:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:06,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:00:06,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:07,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:07,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:07,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:07,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416339284] [2021-11-07 01:00:07,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416339284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:07,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:07,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:00:07,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710143144] [2021-11-07 01:00:07,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:00:07,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:07,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:00:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:00:07,278 INFO L87 Difference]: Start difference. First operand 262 states and 329 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:07,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:07,733 INFO L93 Difference]: Finished difference Result 472 states and 593 transitions. [2021-11-07 01:00:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:00:07,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2021-11-07 01:00:07,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:07,735 INFO L225 Difference]: With dead ends: 472 [2021-11-07 01:00:07,735 INFO L226 Difference]: Without dead ends: 262 [2021-11-07 01:00:07,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:00:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-07 01:00:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2021-11-07 01:00:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 252 states have (on average 1.2857142857142858) internal successors, (324), 261 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 324 transitions. [2021-11-07 01:00:07,749 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 324 transitions. Word has length 42 [2021-11-07 01:00:07,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:07,750 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 324 transitions. [2021-11-07 01:00:07,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 324 transitions. [2021-11-07 01:00:07,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:00:07,752 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:07,752 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] [2021-11-07 01:00:07,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:07,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:07,966 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:00:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:07,967 INFO L85 PathProgramCache]: Analyzing trace with hash -629091549, now seen corresponding path program 1 times [2021-11-07 01:00:07,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:07,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523221773] [2021-11-07 01:00:07,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:07,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:07,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:07,971 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:07,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca2b445-3740-42b0-97c7-45f370451923/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:00:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:12,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 01:00:12,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:13,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:23,297 WARN L207 SmtUtils]: Spent 9.24 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-07 01:00:23,303 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-07 01:00:23,304 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