./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:18:33,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:18:33,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:18:33,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:18:33,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:18:33,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:18:33,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:18:33,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:18:33,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:18:33,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:18:33,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:18:33,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:18:33,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:18:33,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:18:33,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:18:33,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:18:33,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:18:33,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:18:33,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:18:33,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:18:33,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:18:33,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:18:33,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:18:33,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:18:33,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:18:33,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:18:33,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:18:33,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:18:33,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:18:33,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:18:33,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:18:33,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:18:33,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:18:33,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:18:33,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:18:33,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:18:33,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:18:33,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:18:33,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:18:33,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:18:33,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:18:33,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:18:33,676 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:18:33,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:18:33,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:18:33,680 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:18:33,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:18:33,681 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:18:33,681 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:18:33,681 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:18:33,688 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:18:33,688 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:18:33,689 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:18:33,689 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:18:33,690 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:18:33,690 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:18:33,690 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:18:33,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:18:33,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:18:33,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:18:33,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:18:33,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:18:33,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:18:33,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:18:33,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:18:33,694 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:18:33,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:18:33,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:18:33,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:18:33,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:18:33,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:18:33,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:18:33,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:18:33,698 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:18:33,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:18:33,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:18:33,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:18:33,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:18:33,699 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_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d [2021-11-03 04:18:33,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:18:33,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:18:33,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:18:33,989 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:18:33,990 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:18:33,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-03 04:18:34,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/40983f843/e49482d5ed4b49e0adf2fc23212b8034/FLAG4df0ab812 [2021-11-03 04:18:34,942 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:18:34,943 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-03 04:18:34,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/40983f843/e49482d5ed4b49e0adf2fc23212b8034/FLAG4df0ab812 [2021-11-03 04:18:35,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/40983f843/e49482d5ed4b49e0adf2fc23212b8034 [2021-11-03 04:18:35,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:18:35,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:18:35,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:18:35,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:18:35,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:18:35,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:18:35" (1/1) ... [2021-11-03 04:18:35,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109a5db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:35, skipping insertion in model container [2021-11-03 04:18:35,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:18:35" (1/1) ... [2021-11-03 04:18:35,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:18:35,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:18:35,879 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-03 04:18:35,889 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-03 04:18:35,920 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:18:35,934 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:18:36,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:36,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:37,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:18:37,277 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:18:37,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:18:37,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:18:37,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:18:37,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:18:37,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:18:37,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:18:37,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:18:37,285 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:18:37,456 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:18:37,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:37,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:37,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:37,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:37,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:18:37,687 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:18:37,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70904280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:37, skipping insertion in model container [2021-11-03 04:18:37,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:18:37,688 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:18:37,692 INFO L168 Benchmark]: Toolchain (without parser) took 2185.06 ms. Allocated memory is still 113.2 MB. Free memory was 78.0 MB in the beginning and 54.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:18:37,692 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:18:37,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2182.44 ms. Allocated memory is still 113.2 MB. Free memory was 77.8 MB in the beginning and 54.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:18:37,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory is still 56.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2182.44 ms. Allocated memory is still 113.2 MB. Free memory was 77.8 MB in the beginning and 54.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6984]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:18:39,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:18:39,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:18:39,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:18:39,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:18:39,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:18:39,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:18:39,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:18:39,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:18:39,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:18:39,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:18:39,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:18:39,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:18:39,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:18:39,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:18:39,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:18:39,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:18:39,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:18:39,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:18:39,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:18:39,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:18:39,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:18:39,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:18:39,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:18:39,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:18:39,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:18:39,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:18:39,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:18:39,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:18:39,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:18:39,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:18:39,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:18:39,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:18:39,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:18:39,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:18:39,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:18:39,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:18:39,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:18:39,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:18:39,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:18:39,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:18:39,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:18:39,981 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:18:39,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:18:39,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:18:39,982 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:18:39,982 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:18:39,982 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:18:39,983 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:18:39,983 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:18:39,983 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:18:39,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:18:39,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:18:39,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:18:39,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:18:39,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:18:39,985 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:18:39,985 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:18:39,986 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:18:39,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:18:39,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:18:39,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:18:39,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:18:39,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:18:39,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:18:39,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:18:39,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:18:39,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:18:39,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:18:39,989 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:18:39,989 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:18:39,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:18:39,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:18:39,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:18:39,990 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_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fce72e4c86270281dd05ead367908aebeea58cd11d1d4da51b0e6a5af67a67d [2021-11-03 04:18:40,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:18:40,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:18:40,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:18:40,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:18:40,366 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:18:40,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-03 04:18:40,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/d0a621a9d/6a4417dd991b4f8e943f64d5431168e8/FLAGf41ba945a [2021-11-03 04:18:41,369 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:18:41,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2021-11-03 04:18:41,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/d0a621a9d/6a4417dd991b4f8e943f64d5431168e8/FLAGf41ba945a [2021-11-03 04:18:41,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/data/d0a621a9d/6a4417dd991b4f8e943f64d5431168e8 [2021-11-03 04:18:41,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:18:41,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:18:41,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:18:41,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:18:41,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:18:41,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:18:41" (1/1) ... [2021-11-03 04:18:41,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24eb3b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:41, skipping insertion in model container [2021-11-03 04:18:41,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:18:41" (1/1) ... [2021-11-03 04:18:41,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:18:42,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:18:42,320 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-03 04:18:42,326 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-03 04:18:42,347 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:18:42,352 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:18:43,179 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,180 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,180 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,181 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:18:43,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:18:43,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:18:43,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:18:43,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:18:43,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:18:43,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:18:43,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:18:43,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:18:43,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:18:43,749 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:18:43,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:43,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:18:43,970 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:18:44,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:18:44,074 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-03 04:18:44,075 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-03 04:18:44,079 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:18:44,080 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:18:44,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,166 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:18:44,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:18:44,261 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:18:44,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:18:44,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:18:44,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:18:44,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:18:44,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:18:44,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:18:44,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:18:44,307 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:18:44,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:18:44,480 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:18:44,505 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2021-11-03 04:18:44,506 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_e3756dd2-e594-4401-a70c-8c613a248bbd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2021-11-03 04:18:44,507 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:18:44,512 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:18:44,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:18:44,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:18:44,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:18:44,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:18:44,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:18:44,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:18:44,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:18:44,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:18:44,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:18:44,638 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:18:44,658 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:18:44,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:44,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:18:45,202 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:18:45,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45 WrapperNode [2021-11-03 04:18:45,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:18:45,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:18:45,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:18:45,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:18:45,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:18:45,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:18:45,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:18:45,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:18:45,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:18:45,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:18:45,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:18:45,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:18:45,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (1/1) ... [2021-11-03 04:18:45,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:18:45,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:18:45,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:18:45,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:18:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:18:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:18:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:18:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:18:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:18:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:18:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:18:45,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:18:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:18:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:18:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:18:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:18:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:18:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:19:00,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:19:00,071 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-11-03 04:19:00,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:19:00 BoogieIcfgContainer [2021-11-03 04:19:00,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:19:00,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:19:00,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:19:00,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:19:00,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:18:41" (1/3) ... [2021-11-03 04:19:00,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579fa2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:19:00, skipping insertion in model container [2021-11-03 04:19:00,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:45" (2/3) ... [2021-11-03 04:19:00,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579fa2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:19:00, skipping insertion in model container [2021-11-03 04:19:00,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:19:00" (3/3) ... [2021-11-03 04:19:00,085 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reserve_relative_harness.i [2021-11-03 04:19:00,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:19:00,091 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-03 04:19:00,159 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:19:00,170 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:19:00,170 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 04:19:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 224 states have (on average 1.4642857142857142) internal successors, (328), 231 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:19:00,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:00,204 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:00,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:00,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -473287577, now seen corresponding path program 1 times [2021-11-03 04:19:00,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:00,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122473459] [2021-11-03 04:19:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:00,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:00,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:00,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:00,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:19:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:04,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:19:04,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:04,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:04,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122473459] [2021-11-03 04:19:04,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122473459] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:04,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:04,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:19:04,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307096749] [2021-11-03 04:19:04,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:19:04,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:04,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:19:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:19:04,494 INFO L87 Difference]: Start difference. First operand has 232 states, 224 states have (on average 1.4642857142857142) internal successors, (328), 231 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:04,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:04,529 INFO L93 Difference]: Finished difference Result 457 states and 647 transitions. [2021-11-03 04:19:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:19:04,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-03 04:19:04,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:04,541 INFO L225 Difference]: With dead ends: 457 [2021-11-03 04:19:04,541 INFO L226 Difference]: Without dead ends: 227 [2021-11-03 04:19:04,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:19:04,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-03 04:19:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-03 04:19:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.3681818181818182) internal successors, (301), 226 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 301 transitions. [2021-11-03 04:19:04,598 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 301 transitions. Word has length 22 [2021-11-03 04:19:04,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:04,598 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 301 transitions. [2021-11-03 04:19:04,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 301 transitions. [2021-11-03 04:19:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 04:19:04,601 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:04,601 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:04,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:04,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:04,817 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:04,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:04,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2061635479, now seen corresponding path program 1 times [2021-11-03 04:19:04,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:04,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346783155] [2021-11-03 04:19:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:04,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:04,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:04,828 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:04,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:19:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:08,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:19:08,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:08,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:09,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:09,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346783155] [2021-11-03 04:19:09,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346783155] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:09,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:09,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:19:09,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045884754] [2021-11-03 04:19:09,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:19:09,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:19:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:19:09,024 INFO L87 Difference]: Start difference. First operand 227 states and 301 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:09,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:09,385 INFO L93 Difference]: Finished difference Result 431 states and 571 transitions. [2021-11-03 04:19:09,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:19:09,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-03 04:19:09,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:09,387 INFO L225 Difference]: With dead ends: 431 [2021-11-03 04:19:09,387 INFO L226 Difference]: Without dead ends: 227 [2021-11-03 04:19:09,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:19:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-03 04:19:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-03 04:19:09,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.3590909090909091) internal successors, (299), 226 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:09,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 299 transitions. [2021-11-03 04:19:09,404 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 299 transitions. Word has length 22 [2021-11-03 04:19:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:09,404 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 299 transitions. [2021-11-03 04:19:09,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 299 transitions. [2021-11-03 04:19:09,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:19:09,406 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:09,406 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:09,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:19:09,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:09,629 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash 926477308, now seen corresponding path program 1 times [2021-11-03 04:19:09,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:09,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155003305] [2021-11-03 04:19:09,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:09,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:09,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:09,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:09,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:19:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:13,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:19:13,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:13,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:13,820 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:13,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155003305] [2021-11-03 04:19:13,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155003305] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:13,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:13,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:19:13,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361845917] [2021-11-03 04:19:13,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:19:13,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:13,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:19:13,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:19:13,826 INFO L87 Difference]: Start difference. First operand 227 states and 299 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:14,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:14,367 INFO L93 Difference]: Finished difference Result 616 states and 829 transitions. [2021-11-03 04:19:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:19:14,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-03 04:19:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:14,373 INFO L225 Difference]: With dead ends: 616 [2021-11-03 04:19:14,374 INFO L226 Difference]: Without dead ends: 403 [2021-11-03 04:19:14,379 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:19:14,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-03 04:19:14,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 243. [2021-11-03 04:19:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 236 states have (on average 1.3347457627118644) internal successors, (315), 242 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 315 transitions. [2021-11-03 04:19:14,426 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 315 transitions. Word has length 28 [2021-11-03 04:19:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:14,426 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 315 transitions. [2021-11-03 04:19:14,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:14,426 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 315 transitions. [2021-11-03 04:19:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:19:14,428 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:14,428 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:14,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:14,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:14,629 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:14,629 INFO L85 PathProgramCache]: Analyzing trace with hash -94591046, now seen corresponding path program 1 times [2021-11-03 04:19:14,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:14,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899210940] [2021-11-03 04:19:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:14,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:14,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:14,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:14,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:19:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:18,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:19:18,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:18,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:18,775 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:18,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899210940] [2021-11-03 04:19:18,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899210940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:18,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:18,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:19:18,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669326602] [2021-11-03 04:19:18,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:19:18,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:18,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:19:18,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:19:18,777 INFO L87 Difference]: Start difference. First operand 243 states and 315 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:19,623 INFO L93 Difference]: Finished difference Result 622 states and 823 transitions. [2021-11-03 04:19:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:19:19,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-03 04:19:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:19,626 INFO L225 Difference]: With dead ends: 622 [2021-11-03 04:19:19,626 INFO L226 Difference]: Without dead ends: 403 [2021-11-03 04:19:19,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:19:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-03 04:19:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 259. [2021-11-03 04:19:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 252 states have (on average 1.3134920634920635) internal successors, (331), 258 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 331 transitions. [2021-11-03 04:19:19,641 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 331 transitions. Word has length 28 [2021-11-03 04:19:19,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:19,642 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 331 transitions. [2021-11-03 04:19:19,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:19,642 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 331 transitions. [2021-11-03 04:19:19,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:19:19,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:19,644 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:19,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:19:19,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:19,857 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:19,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:19,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1374345282, now seen corresponding path program 1 times [2021-11-03 04:19:19,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:19,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930264568] [2021-11-03 04:19:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:19,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:19,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:19,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:19,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:19:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:23,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:19:23,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:23,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:19:24,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:24,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:24,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 04:19:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:24,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:24,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930264568] [2021-11-03 04:19:24,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930264568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:24,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:24,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-03 04:19:24,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079979344] [2021-11-03 04:19:24,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:19:24,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:19:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:19:24,677 INFO L87 Difference]: Start difference. First operand 259 states and 331 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:32,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:32,717 INFO L93 Difference]: Finished difference Result 764 states and 983 transitions. [2021-11-03 04:19:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 04:19:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-03 04:19:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:32,721 INFO L225 Difference]: With dead ends: 764 [2021-11-03 04:19:32,721 INFO L226 Difference]: Without dead ends: 531 [2021-11-03 04:19:32,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:19:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-03 04:19:32,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 394. [2021-11-03 04:19:32,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 387 states have (on average 1.3281653746770026) internal successors, (514), 393 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 514 transitions. [2021-11-03 04:19:32,742 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 514 transitions. Word has length 28 [2021-11-03 04:19:32,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:32,742 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 514 transitions. [2021-11-03 04:19:32,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 514 transitions. [2021-11-03 04:19:32,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 04:19:32,743 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:32,744 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:32,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:32,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:32,965 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:32,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:32,966 INFO L85 PathProgramCache]: Analyzing trace with hash -148609934, now seen corresponding path program 1 times [2021-11-03 04:19:32,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:32,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168618068] [2021-11-03 04:19:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:32,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:32,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:32,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:19:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:36,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:19:36,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:36,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:37,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:37,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:37,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168618068] [2021-11-03 04:19:37,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168618068] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:37,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:37,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:19:37,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553999814] [2021-11-03 04:19:37,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:19:37,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:37,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:19:37,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:19:37,092 INFO L87 Difference]: Start difference. First operand 394 states and 514 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:38,035 INFO L93 Difference]: Finished difference Result 965 states and 1234 transitions. [2021-11-03 04:19:38,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:19:38,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-03 04:19:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:38,039 INFO L225 Difference]: With dead ends: 965 [2021-11-03 04:19:38,039 INFO L226 Difference]: Without dead ends: 594 [2021-11-03 04:19:38,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:19:38,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-03 04:19:38,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 394. [2021-11-03 04:19:38,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 387 states have (on average 1.3255813953488371) internal successors, (513), 393 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 513 transitions. [2021-11-03 04:19:38,061 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 513 transitions. Word has length 32 [2021-11-03 04:19:38,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:38,061 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 513 transitions. [2021-11-03 04:19:38,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:38,062 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 513 transitions. [2021-11-03 04:19:38,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:19:38,063 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:38,063 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:38,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:38,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:38,285 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:38,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash 592046605, now seen corresponding path program 1 times [2021-11-03 04:19:38,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:38,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708481736] [2021-11-03 04:19:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:38,289 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:38,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:38,290 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:38,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:19:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:42,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:19:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:42,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:42,548 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:42,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708481736] [2021-11-03 04:19:42,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708481736] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:42,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:42,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:19:42,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475256445] [2021-11-03 04:19:42,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:19:42,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:42,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:19:42,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:19:42,550 INFO L87 Difference]: Start difference. First operand 394 states and 513 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:42,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:42,883 INFO L93 Difference]: Finished difference Result 635 states and 807 transitions. [2021-11-03 04:19:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:19:42,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:19:42,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:42,887 INFO L225 Difference]: With dead ends: 635 [2021-11-03 04:19:42,887 INFO L226 Difference]: Without dead ends: 591 [2021-11-03 04:19:42,888 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:19:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-11-03 04:19:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 398. [2021-11-03 04:19:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 391 states have (on average 1.3222506393861893) internal successors, (517), 397 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:42,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 517 transitions. [2021-11-03 04:19:42,909 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 517 transitions. Word has length 34 [2021-11-03 04:19:42,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:42,909 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 517 transitions. [2021-11-03 04:19:42,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 517 transitions. [2021-11-03 04:19:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:19:42,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:42,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:42,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:43,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:43,125 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:43,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:43,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1825558015, now seen corresponding path program 1 times [2021-11-03 04:19:43,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:43,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946106931] [2021-11-03 04:19:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:43,130 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:43,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:43,132 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:43,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:19:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:47,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:19:47,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:47,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:47,637 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:47,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946106931] [2021-11-03 04:19:47,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946106931] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:47,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:47,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:19:47,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740544820] [2021-11-03 04:19:47,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:19:47,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:47,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:19:47,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:19:47,639 INFO L87 Difference]: Start difference. First operand 398 states and 517 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:48,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:48,064 INFO L93 Difference]: Finished difference Result 744 states and 969 transitions. [2021-11-03 04:19:48,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:19:48,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-03 04:19:48,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:48,067 INFO L225 Difference]: With dead ends: 744 [2021-11-03 04:19:48,067 INFO L226 Difference]: Without dead ends: 398 [2021-11-03 04:19:48,068 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:19:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-03 04:19:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-11-03 04:19:48,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 391 states have (on average 1.3145780051150895) internal successors, (514), 397 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:48,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 514 transitions. [2021-11-03 04:19:48,087 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 514 transitions. Word has length 46 [2021-11-03 04:19:48,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:48,088 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 514 transitions. [2021-11-03 04:19:48,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 514 transitions. [2021-11-03 04:19:48,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 04:19:48,089 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:48,089 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:19:48,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:48,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:48,309 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:19:48,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash 887273475, now seen corresponding path program 1 times [2021-11-03 04:19:48,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:48,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746730807] [2021-11-03 04:19:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:48,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:48,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:48,314 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:48,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3756dd2-e594-4401-a70c-8c613a248bbd/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:19:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:52,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 04:19:52,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:53,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:03,188 WARN L207 SmtUtils]: Spent 9.14 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 04:20:03,194 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 04:20:03,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771