./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/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_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/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_105d5efe-a8ad-4218-ac7b-7413968b45d8/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 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:08:58,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:08:58,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:08:58,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:08:58,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:08:58,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:08:58,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:08:58,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:08:58,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:08:58,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:08:58,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:08:58,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:08:58,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:08:58,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:08:58,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:08:58,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:08:58,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:08:58,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:08:58,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:08:58,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:08:58,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:08:58,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:08:58,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:08:58,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:08:58,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:08:58,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:08:58,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:08:58,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:08:58,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:08:58,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:08:58,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:08:58,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:08:59,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:08:59,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:08:59,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:08:59,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:08:59,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:08:59,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:08:59,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:08:59,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:08:59,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:08:59,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:08:59,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:08:59,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:08:59,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:08:59,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:08:59,052 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:08:59,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:08:59,053 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:08:59,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:08:59,059 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:08:59,060 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:08:59,061 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:08:59,061 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:08:59,061 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:08:59,061 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:08:59,062 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:08:59,062 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:08:59,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:08:59,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:08:59,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:08:59,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:08:59,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:08:59,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:08:59,064 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:08:59,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:08:59,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:08:59,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:08:59,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:08:59,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:08:59,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:08:59,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:08:59,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:08:59,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:08:59,066 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:08:59,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:08:59,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:08:59,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:08:59,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:08:59,067 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc [2021-11-12 23:08:59,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:08:59,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:08:59,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:08:59,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:08:59,352 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:08:59,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-12 23:08:59,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/53721853f/dd6d2d5fc77a40b7a0b80b1b9e02086d/FLAG5a199ad14 [2021-11-12 23:09:00,310 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:09:00,312 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-12 23:09:00,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/53721853f/dd6d2d5fc77a40b7a0b80b1b9e02086d/FLAG5a199ad14 [2021-11-12 23:09:00,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/53721853f/dd6d2d5fc77a40b7a0b80b1b9e02086d [2021-11-12 23:09:00,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:09:00,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:09:00,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:09:00,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:09:00,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:09:00,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:09:00" (1/1) ... [2021-11-12 23:09:00,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbb1771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:00, skipping insertion in model container [2021-11-12 23:09:00,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:09:00" (1/1) ... [2021-11-12 23:09:00,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:09:00,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:09:01,203 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-12 23:09:01,209 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-12 23:09:01,232 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:09:01,237 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:02,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,170 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:02,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:02,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:02,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:02,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:02,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:02,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:02,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:02,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:02,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:02,857 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:02,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:02,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:03,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:03,100 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) [2021-11-12 23:09:03,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d14b607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:03, skipping insertion in model container [2021-11-12 23:09:03,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:09:03,102 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:09:03,105 INFO L158 Benchmark]: Toolchain (without parser) took 2304.23ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 68.3MB in the beginning and 79.2MB in the end (delta: -10.9MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2021-11-12 23:09:03,106 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:09:03,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2299.98ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 68.3MB in the beginning and 79.2MB in the end (delta: -10.9MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2021-11-12 23:09:03,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2299.98ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 68.3MB in the beginning and 79.2MB in the end (delta: -10.9MB). Peak memory consumption was 33.3MB. 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/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_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/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_105d5efe-a8ad-4218-ac7b-7413968b45d8/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 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:09:05,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:09:05,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:09:05,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:09:05,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:09:05,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:09:05,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:09:05,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:09:05,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:09:05,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:09:05,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:09:05,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:09:05,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:09:05,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:09:05,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:09:05,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:09:05,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:09:05,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:09:05,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:09:05,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:09:05,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:09:05,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:09:05,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:09:05,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:09:05,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:09:05,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:09:05,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:09:05,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:09:05,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:09:05,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:09:05,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:09:05,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:09:05,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:09:05,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:09:05,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:09:05,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:09:05,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:09:05,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:09:05,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:09:05,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:09:05,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:09:05,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:09:05,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:09:05,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:09:05,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:09:05,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:09:05,551 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:09:05,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:09:05,551 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:09:05,551 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:09:05,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:09:05,552 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:09:05,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:09:05,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:09:05,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:09:05,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:09:05,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:09:05,553 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:09:05,554 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:09:05,554 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:09:05,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:09:05,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:09:05,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:09:05,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:09:05,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:09:05,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:09:05,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:09:05,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:09:05,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:09:05,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:09:05,556 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:09:05,556 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:09:05,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:09:05,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:09:05,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:09:05,557 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fd96106837ff3ee9325c248fea6969b94a5a1f2cee078fd159398f70369aafc [2021-11-12 23:09:05,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:09:05,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:09:05,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:09:05,929 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:09:05,930 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:09:05,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-12 23:09:06,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/89e774bfc/405e9700cbda4116a6709c9b352134f6/FLAG6021c4def [2021-11-12 23:09:06,996 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:09:07,001 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2021-11-12 23:09:07,059 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/89e774bfc/405e9700cbda4116a6709c9b352134f6/FLAG6021c4def [2021-11-12 23:09:07,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/data/89e774bfc/405e9700cbda4116a6709c9b352134f6 [2021-11-12 23:09:07,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:09:07,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:09:07,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:09:07,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:09:07,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:09:07,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:09:07" (1/1) ... [2021-11-12 23:09:07,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc6dcdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:07, skipping insertion in model container [2021-11-12 23:09:07,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:09:07" (1/1) ... [2021-11-12 23:09:07,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:09:07,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:09:07,829 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-12 23:09:07,835 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-12 23:09:07,864 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:09:07,872 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:08,701 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:08,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,151 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:09,152 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:09,153 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:09,155 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:09,156 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:09,157 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:09,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:09,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:09,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:09,160 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:09,394 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:09,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:09,705 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:09:09,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:09:09,771 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-12 23:09:09,771 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-12 23:09:09,772 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:09:09,775 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:09,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:09,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:09,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:09,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:09,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:09,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:09,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:09,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:09,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:09,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:09,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:09,941 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:10,026 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,026 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:10,137 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:09:10,163 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2021-11-12 23:09:10,164 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_105d5efe-a8ad-4218-ac7b-7413968b45d8/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2021-11-12 23:09:10,166 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:09:10,167 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:10,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:10,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:10,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:10,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:10,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:10,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:10,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:10,285 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:10,286 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:10,286 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:10,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:10,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:10,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:10,885 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:09:10,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10 WrapperNode [2021-11-12 23:09:10,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:09:10,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:09:10,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:09:10,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:09:10,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:09:11,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:09:11,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:09:11,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:09:11,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:09:11,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:09:11,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:09:11,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:09:11,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (1/1) ... [2021-11-12 23:09:11,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:09:11,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:11,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:09:11,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:09:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 23:09:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 23:09:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-12 23:09:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-12 23:09:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:09:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:09:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:09:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:09:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:09:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:09:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:09:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:09:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_left_trim_pred [2021-11-12 23:09:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_left_trim_pred [2021-11-12 23:09:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:09:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:09:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:09:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:09:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:09:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:09:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:09:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 23:09:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 23:09:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:09:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:09:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:09:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:09:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:09:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:09:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:09:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:09:25,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:09:25,219 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 23:09:25,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:09:25 BoogieIcfgContainer [2021-11-12 23:09:25,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:09:25,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:09:25,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:09:25,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:09:25,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:09:07" (1/3) ... [2021-11-12 23:09:25,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3455d9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:09:25, skipping insertion in model container [2021-11-12 23:09:25,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:10" (2/3) ... [2021-11-12 23:09:25,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3455d9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:09:25, skipping insertion in model container [2021-11-12 23:09:25,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:09:25" (3/3) ... [2021-11-12 23:09:25,230 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_trim_pred_harness.i [2021-11-12 23:09:25,236 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:09:25,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:09:25,288 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:09:25,295 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 [2021-11-12 23:09:25,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:09:25,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 78 states have internal predecessors, (95), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-12 23:09:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 23:09:25,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:25,327 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:25,327 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash 301715553, now seen corresponding path program 1 times [2021-11-12 23:09:25,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:25,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367632486] [2021-11-12 23:09:25,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:25,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:25,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:25,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:25,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:09:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:29,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:09:29,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-12 23:09:29,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-12 23:09:30,104 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:30,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367632486] [2021-11-12 23:09:30,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367632486] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:30,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:30,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 23:09:30,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373847569] [2021-11-12 23:09:30,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:30,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:09:30,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:30,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:09:30,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:09:30,162 INFO L87 Difference]: Start difference. First operand has 124 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 78 states have internal predecessors, (95), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 23:09:30,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:30,230 INFO L93 Difference]: Finished difference Result 244 states and 355 transitions. [2021-11-12 23:09:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:09:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2021-11-12 23:09:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:30,245 INFO L225 Difference]: With dead ends: 244 [2021-11-12 23:09:30,245 INFO L226 Difference]: Without dead ends: 115 [2021-11-12 23:09:30,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:09:30,260 INFO L933 BasicCegarLoop]: 165 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, 165 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:30,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 5.17ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:09:30,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-12 23:09:30,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-12 23:09:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 37 states have call successors, (37), 8 states have call predecessors, (37), 7 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-12 23:09:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2021-11-12 23:09:30,336 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 79 [2021-11-12 23:09:30,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:30,336 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2021-11-12 23:09:30,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 23:09:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2021-11-12 23:09:30,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-12 23:09:30,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:30,349 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:30,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:09:30,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:30,565 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:30,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash 239309438, now seen corresponding path program 1 times [2021-11-12 23:09:30,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:30,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526262671] [2021-11-12 23:09:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:30,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:30,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:30,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:30,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:09:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:34,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:09:34,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-12 23:09:35,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:35,651 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:09:35,652 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:35,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526262671] [2021-11-12 23:09:35,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526262671] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:35,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:35,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 23:09:35,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994344837] [2021-11-12 23:09:35,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:35,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:09:35,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:35,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:09:35,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:09:35,656 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 23:09:36,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:36,031 INFO L93 Difference]: Finished difference Result 213 states and 298 transitions. [2021-11-12 23:09:36,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:09:36,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2021-11-12 23:09:36,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:36,035 INFO L225 Difference]: With dead ends: 213 [2021-11-12 23:09:36,036 INFO L226 Difference]: Without dead ends: 118 [2021-11-12 23:09:36,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:09:36,037 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 43 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 274.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.19ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 335.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:36,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 461 Invalid, 81 Unknown, 0 Unchecked, 7.19ms Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 335.94ms Time] [2021-11-12 23:09:36,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-12 23:09:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-12 23:09:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 74 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (45), 35 states have call predecessors, (45), 35 states have call successors, (45) [2021-11-12 23:09:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 166 transitions. [2021-11-12 23:09:36,070 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 166 transitions. Word has length 81 [2021-11-12 23:09:36,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:36,070 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 166 transitions. [2021-11-12 23:09:36,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-12 23:09:36,071 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 166 transitions. [2021-11-12 23:09:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-12 23:09:36,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:36,076 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:36,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:36,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:36,278 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:36,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:36,278 INFO L85 PathProgramCache]: Analyzing trace with hash -679055495, now seen corresponding path program 1 times [2021-11-12 23:09:36,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:36,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621924970] [2021-11-12 23:09:36,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:36,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:36,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:36,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:36,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:09:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:40,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:09:40,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-12 23:09:40,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:09:41,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:41,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621924970] [2021-11-12 23:09:41,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621924970] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:41,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:41,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2021-11-12 23:09:41,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475053210] [2021-11-12 23:09:41,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:41,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:09:41,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:41,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:09:41,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:09:41,213 INFO L87 Difference]: Start difference. First operand 118 states and 166 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:41,518 INFO L93 Difference]: Finished difference Result 208 states and 295 transitions. [2021-11-12 23:09:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:09:41,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 83 [2021-11-12 23:09:41,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:41,522 INFO L225 Difference]: With dead ends: 208 [2021-11-12 23:09:41,522 INFO L226 Difference]: Without dead ends: 118 [2021-11-12 23:09:41,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:09:41,524 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 61 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.94ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 262.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:41,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 458 Invalid, 107 Unknown, 0 Unchecked, 4.94ms Time], IncrementalHoareTripleChecker [51 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 262.80ms Time] [2021-11-12 23:09:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-12 23:09:41,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-12 23:09:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 74 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (43), 35 states have call predecessors, (43), 35 states have call successors, (43) [2021-11-12 23:09:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2021-11-12 23:09:41,543 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 83 [2021-11-12 23:09:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:41,543 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2021-11-12 23:09:41,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2021-11-12 23:09:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-12 23:09:41,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:41,546 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2021-11-12 23:09:41,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:41,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:41,747 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:41,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:41,747 INFO L85 PathProgramCache]: Analyzing trace with hash -696220556, now seen corresponding path program 2 times [2021-11-12 23:09:41,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:41,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077649680] [2021-11-12 23:09:41,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:09:41,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:41,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:41,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:41,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105d5efe-a8ad-4218-ac7b-7413968b45d8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process