./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF --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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:40:22,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:40:22,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:40:22,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:40:22,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:40:22,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:40:22,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:40:22,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:40:22,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:40:22,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:40:22,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:40:22,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:40:22,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:40:22,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:40:22,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:40:22,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:40:22,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:40:22,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:40:22,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:40:22,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:40:22,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:40:22,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:40:22,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:40:22,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:40:22,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:40:22,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:40:22,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:40:22,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:40:22,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:40:22,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:40:22,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:40:22,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:40:22,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:40:22,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:40:22,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:40:22,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:40:22,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:40:22,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:40:22,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:40:22,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:40:22,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:40:22,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:40:22,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:40:22,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:40:22,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:40:22,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:40:22,844 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:40:22,844 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:40:22,844 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:40:22,844 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:40:22,851 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:40:22,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:40:22,852 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:40:22,852 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:40:22,853 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:40:22,853 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:40:22,853 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:40:22,853 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:40:22,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:40:22,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:40:22,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:40:22,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:40:22,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:40:22,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:40:22,856 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:40:22,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:40:22,856 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:40:22,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:40:22,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:40:22,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:40:22,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:40:22,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:40:22,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:40:22,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:40:22,860 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:40:22,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:40:22,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:40:22,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:40:22,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:40:22,861 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-13 02:40:23,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:40:23,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:40:23,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:40:23,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:40:23,162 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:40:23,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-13 02:40:23,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/d344cce46/3c98bce058934005888ed6d5624eae2d/FLAG0be9b35be [2021-11-13 02:40:24,139 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:40:24,140 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-13 02:40:24,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/d344cce46/3c98bce058934005888ed6d5624eae2d/FLAG0be9b35be [2021-11-13 02:40:24,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/d344cce46/3c98bce058934005888ed6d5624eae2d [2021-11-13 02:40:24,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:40:24,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:40:24,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:24,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:40:24,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:40:24,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:24" (1/1) ... [2021-11-13 02:40:24,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2868981c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:24, skipping insertion in model container [2021-11-13 02:40:24,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:24" (1/1) ... [2021-11-13 02:40:24,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:40:24,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:40:25,086 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-13 02:40:25,096 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-13 02:40:25,127 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:25,136 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:26,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,156 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:26,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:26,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:26,680 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:26,682 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:26,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:26,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:26,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:26,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:26,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:26,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:26,958 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:27,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:27,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:27,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:27,190 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) [2021-11-13 02:40:27,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@574c772d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:27, skipping insertion in model container [2021-11-13 02:40:27,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:27,192 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:40:27,194 INFO L158 Benchmark]: Toolchain (without parser) took 2611.40ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 49.8MB in the beginning and 57.5MB in the end (delta: -7.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-11-13 02:40:27,194 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 67.1MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:40:27,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2608.77ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 57.5MB in the end (delta: -8.1MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-11-13 02:40:27,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 67.1MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2608.77ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 57.5MB in the end (delta: -8.1MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF --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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:40:29,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:40:29,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:40:29,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:40:29,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:40:29,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:40:29,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:40:29,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:40:29,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:40:29,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:40:29,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:40:29,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:40:29,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:40:29,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:40:29,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:40:29,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:40:29,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:40:29,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:40:29,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:40:29,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:40:29,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:40:29,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:40:29,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:40:29,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:40:29,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:40:29,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:40:29,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:40:29,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:40:29,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:40:29,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:40:29,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:40:29,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:40:29,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:40:29,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:40:29,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:40:29,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:40:29,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:40:29,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:40:29,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:40:29,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:40:29,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:40:29,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:40:29,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:40:29,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:40:29,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:40:29,710 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:40:29,710 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:40:29,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:40:29,711 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:40:29,711 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:40:29,711 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:40:29,712 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:40:29,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:40:29,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:40:29,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:40:29,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:40:29,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:40:29,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:40:29,716 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:40:29,716 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:40:29,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:40:29,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:40:29,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:40:29,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:40:29,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:40:29,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:40:29,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:40:29,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:40:29,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:40:29,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:40:29,719 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:40:29,719 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:40:29,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:40:29,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:40:29,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:40:29,720 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-13 02:40:30,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:40:30,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:40:30,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:40:30,150 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:40:30,151 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:40:30,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-13 02:40:30,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/87f45b10b/0adcadca2d8849948602851ad80c3acd/FLAGf1734013d [2021-11-13 02:40:31,314 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:40:31,315 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-13 02:40:31,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/87f45b10b/0adcadca2d8849948602851ad80c3acd/FLAGf1734013d [2021-11-13 02:40:31,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/data/87f45b10b/0adcadca2d8849948602851ad80c3acd [2021-11-13 02:40:31,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:40:31,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:40:31,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:31,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:40:31,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:40:31,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:31" (1/1) ... [2021-11-13 02:40:31,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b87144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:31, skipping insertion in model container [2021-11-13 02:40:31,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:31" (1/1) ... [2021-11-13 02:40:31,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:40:31,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:40:31,878 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-13 02:40:31,886 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-13 02:40:31,921 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:31,929 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:32,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,975 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:32,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:33,470 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:33,472 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:33,473 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:33,474 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:33,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:33,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:33,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:33,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:33,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:33,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:33,710 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:33,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:33,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:33,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:34,053 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:40:34,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:40:34,150 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-13 02:40:34,151 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-13 02:40:34,152 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:34,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:34,227 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,231 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,232 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:34,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:34,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:34,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:34,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:34,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:34,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:34,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:34,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:34,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:34,348 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:34,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:34,529 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:40:34,556 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-13 02:40:34,556 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_d0199cb5-ec30-4b9c-9242-94eedfffcc68/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-13 02:40:34,558 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:34,558 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:34,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:34,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:34,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:34,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:34,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:34,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:34,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:34,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:34,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:34,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:34,788 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:34,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:34,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:35,249 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:40:35,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35 WrapperNode [2021-11-13 02:40:35,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:35,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:40:35,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:40:35,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:40:35,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:40:35,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:40:35,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:40:35,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:40:35,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:40:35,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:40:35,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:40:35,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:40:35,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (1/1) ... [2021-11-13 02:40:35,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:40:35,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:40:35,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:40:35,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:40:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-13 02:40:35,736 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-13 02:40:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:40:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 02:40:35,737 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 02:40:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:40:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:40:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-13 02:40:35,739 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-13 02:40:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-13 02:40:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 02:40:35,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 02:40:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 02:40:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 02:40:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:40:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:40:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:40:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:40:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 02:40:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 02:40:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 02:40:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 02:40:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:40:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:40:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 02:40:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 02:40:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:40:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:40:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2021-11-13 02:40:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2021-11-13 02:40:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 02:40:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:40:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-13 02:40:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-13 02:40:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-13 02:40:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 02:40:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 02:40:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-13 02:40:35,745 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-13 02:40:35,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:40:35,748 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-13 02:40:35,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-13 02:40:35,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:40:35,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:40:35,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:40:35,750 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2021-11-13 02:40:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2021-11-13 02:40:35,751 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 02:40:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 02:40:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-13 02:40:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-13 02:40:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-13 02:40:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-13 02:40:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-13 02:40:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 02:40:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 02:40:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 02:40:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 02:40:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 02:40:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:40:36,684 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2021-11-13 02:40:51,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:40:51,996 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 02:40:51,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:51 BoogieIcfgContainer [2021-11-13 02:40:51,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:40:52,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:40:52,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:40:52,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:40:52,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:40:31" (1/3) ... [2021-11-13 02:40:52,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb26441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:52, skipping insertion in model container [2021-11-13 02:40:52,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:35" (2/3) ... [2021-11-13 02:40:52,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb26441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:52, skipping insertion in model container [2021-11-13 02:40:52,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:51" (3/3) ... [2021-11-13 02:40:52,009 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_array_harness.i [2021-11-13 02:40:52,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:40:52,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:40:52,092 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:40:52,100 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 [2021-11-13 02:40:52,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:40:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 82 states have (on average 1.170731707317073) internal successors, (96), 82 states have internal predecessors, (96), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-13 02:40:52,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 02:40:52,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:52,137 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:40:52,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:40:52,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:52,143 INFO L85 PathProgramCache]: Analyzing trace with hash 984437086, now seen corresponding path program 1 times [2021-11-13 02:40:52,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:52,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2247912] [2021-11-13 02:40:52,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:52,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:52,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:52,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:52,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:40:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:56,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:40:56,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-13 02:40:56,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-13 02:40:56,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:56,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2247912] [2021-11-13 02:40:56,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2247912] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:56,788 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:56,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:40:56,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722985789] [2021-11-13 02:40:56,791 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:56,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:40:56,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:56,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:40:56,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:40:56,841 INFO L87 Difference]: Start difference. First operand has 132 states, 82 states have (on average 1.170731707317073) internal successors, (96), 82 states have internal predecessors, (96), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 02:40:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:56,911 INFO L93 Difference]: Finished difference Result 258 states and 335 transitions. [2021-11-13 02:40:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:40:56,913 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 70 [2021-11-13 02:40:56,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:56,928 INFO L225 Difference]: With dead ends: 258 [2021-11-13 02:40:56,929 INFO L226 Difference]: Without dead ends: 126 [2021-11-13 02:40:56,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:40:56,941 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:56,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 5.85ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:40:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-13 02:40:57,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-11-13 02:40:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 76 states have (on average 1.144736842105263) internal successors, (87), 77 states have internal predecessors, (87), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-13 02:40:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2021-11-13 02:40:57,014 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 70 [2021-11-13 02:40:57,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:57,015 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2021-11-13 02:40:57,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 02:40:57,016 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2021-11-13 02:40:57,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 02:40:57,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:57,021 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:40:57,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:57,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:57,222 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:40:57,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:57,223 INFO L85 PathProgramCache]: Analyzing trace with hash 663113824, now seen corresponding path program 1 times [2021-11-13 02:40:57,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:57,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018822202] [2021-11-13 02:40:57,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:57,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:57,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:57,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:57,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:41:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:01,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:41:01,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-13 02:41:01,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-13 02:41:02,055 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:02,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018822202] [2021-11-13 02:41:02,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018822202] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:02,056 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:02,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 02:41:02,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768842105] [2021-11-13 02:41:02,056 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:02,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:41:02,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:02,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:41:02,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:41:02,059 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-13 02:41:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:02,158 INFO L93 Difference]: Finished difference Result 169 states and 202 transitions. [2021-11-13 02:41:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:41:02,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 70 [2021-11-13 02:41:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:02,162 INFO L225 Difference]: With dead ends: 169 [2021-11-13 02:41:02,162 INFO L226 Difference]: Without dead ends: 130 [2021-11-13 02:41:02,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:41:02,164 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 2 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.84ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:02,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 596 Invalid, 11 Unknown, 0 Unchecked, 5.72ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 52.84ms Time] [2021-11-13 02:41:02,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-13 02:41:02,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-11-13 02:41:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 79 states have (on average 1.139240506329114) internal successors, (90), 80 states have internal predecessors, (90), 33 states have call successors, (33), 16 states have call predecessors, (33), 17 states have return successors, (33), 33 states have call predecessors, (33), 32 states have call successors, (33) [2021-11-13 02:41:02,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 156 transitions. [2021-11-13 02:41:02,179 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 156 transitions. Word has length 70 [2021-11-13 02:41:02,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:02,180 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 156 transitions. [2021-11-13 02:41:02,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-13 02:41:02,180 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 156 transitions. [2021-11-13 02:41:02,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-13 02:41:02,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:02,183 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:02,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:02,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:02,409 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash -165031984, now seen corresponding path program 1 times [2021-11-13 02:41:02,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:02,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714049014] [2021-11-13 02:41:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:02,418 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:02,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:02,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:02,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:41:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:06,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 02:41:06,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-13 02:41:06,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:07,031 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-13 02:41:07,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:07,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714049014] [2021-11-13 02:41:07,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714049014] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:07,031 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:07,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 02:41:07,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775442693] [2021-11-13 02:41:07,032 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:07,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:41:07,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:07,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:41:07,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:41:07,034 INFO L87 Difference]: Start difference. First operand 130 states and 156 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-13 02:41:07,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:07,134 INFO L93 Difference]: Finished difference Result 169 states and 201 transitions. [2021-11-13 02:41:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:41:07,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 76 [2021-11-13 02:41:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:07,142 INFO L225 Difference]: With dead ends: 169 [2021-11-13 02:41:07,142 INFO L226 Difference]: Without dead ends: 130 [2021-11-13 02:41:07,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:41:07,144 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.36ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:07,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 11 Unknown, 0 Unchecked, 7.41ms Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 70.36ms Time] [2021-11-13 02:41:07,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-13 02:41:07,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2021-11-13 02:41:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 76 states have (on average 1.118421052631579) internal successors, (85), 77 states have internal predecessors, (85), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-13 02:41:07,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 150 transitions. [2021-11-13 02:41:07,164 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 150 transitions. Word has length 76 [2021-11-13 02:41:07,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:07,164 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 150 transitions. [2021-11-13 02:41:07,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-13 02:41:07,165 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 150 transitions. [2021-11-13 02:41:07,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 02:41:07,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:07,177 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:07,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:07,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:07,406 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:07,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash 920324796, now seen corresponding path program 1 times [2021-11-13 02:41:07,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:07,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521110297] [2021-11-13 02:41:07,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:07,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:07,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:07,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:07,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:41:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:11,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1931 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:41:11,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-13 02:41:11,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-13 02:41:12,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:12,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521110297] [2021-11-13 02:41:12,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521110297] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:12,520 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:12,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-13 02:41:12,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851673206] [2021-11-13 02:41:12,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:12,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:41:12,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:12,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:41:12,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:41:12,523 INFO L87 Difference]: Start difference. First operand 126 states and 150 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 02:41:12,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:12,590 INFO L93 Difference]: Finished difference Result 188 states and 223 transitions. [2021-11-13 02:41:12,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:41:12,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 120 [2021-11-13 02:41:12,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:12,594 INFO L225 Difference]: With dead ends: 188 [2021-11-13 02:41:12,594 INFO L226 Difference]: Without dead ends: 134 [2021-11-13 02:41:12,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:41:12,596 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 4 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.08ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.26ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:12,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 725 Invalid, 22 Unknown, 0 Unchecked, 5.08ms Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 52.26ms Time] [2021-11-13 02:41:12,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-13 02:41:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 131. [2021-11-13 02:41:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 80 states have (on average 1.1125) internal successors, (89), 81 states have internal predecessors, (89), 33 states have call successors, (33), 16 states have call predecessors, (33), 17 states have return successors, (33), 33 states have call predecessors, (33), 32 states have call successors, (33) [2021-11-13 02:41:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 155 transitions. [2021-11-13 02:41:12,611 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 155 transitions. Word has length 120 [2021-11-13 02:41:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:12,612 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 155 transitions. [2021-11-13 02:41:12,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-13 02:41:12,612 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 155 transitions. [2021-11-13 02:41:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-13 02:41:12,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:12,614 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:12,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:12,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:12,833 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:12,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1169763950, now seen corresponding path program 1 times [2021-11-13 02:41:12,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:12,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048155835] [2021-11-13 02:41:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:12,839 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:12,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:12,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:12,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:41:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:16,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-13 02:41:16,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-13 02:41:17,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-13 02:41:18,483 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:18,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048155835] [2021-11-13 02:41:18,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048155835] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:18,484 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:18,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-13 02:41:18,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656841787] [2021-11-13 02:41:18,484 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:18,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 02:41:18,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:18,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 02:41:18,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:41:18,486 INFO L87 Difference]: Start difference. First operand 131 states and 155 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 02:41:18,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:18,726 INFO L93 Difference]: Finished difference Result 185 states and 219 transitions. [2021-11-13 02:41:18,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:41:18,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 126 [2021-11-13 02:41:18,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:18,732 INFO L225 Difference]: With dead ends: 185 [2021-11-13 02:41:18,733 INFO L226 Difference]: Without dead ends: 124 [2021-11-13 02:41:18,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:41:18,734 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 2 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.62ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.69ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:18,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1152 Invalid, 45 Unknown, 0 Unchecked, 5.62ms Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 174.69ms Time] [2021-11-13 02:41:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-13 02:41:18,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-13 02:41:18,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 76 states have internal predecessors, (82), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-13 02:41:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2021-11-13 02:41:18,763 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 126 [2021-11-13 02:41:18,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:18,765 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2021-11-13 02:41:18,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-13 02:41:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2021-11-13 02:41:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-13 02:41:18,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:18,769 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:18,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:18,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:18,993 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:18,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:18,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2107791725, now seen corresponding path program 1 times [2021-11-13 02:41:18,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:18,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104801335] [2021-11-13 02:41:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:18,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:18,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:19,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:19,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0199cb5-ec30-4b9c-9242-94eedfffcc68/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:41:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:23,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 1953 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-13 02:41:23,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:24,113 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-13 02:41:24,114 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 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-13 02:41:24,940 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:24,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 66 [2021-11-13 02:41:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-13 02:41:26,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:29,332 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 499 treesize of output 485