./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG --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 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 ................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG --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 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:53:17,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:17,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:17,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:17,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:17,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:17,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:17,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:17,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:17,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:17,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:17,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:17,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:17,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:17,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:17,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:17,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:17,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:17,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:17,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:17,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:17,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:17,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:17,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:18,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:18,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:18,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:18,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:18,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:18,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:18,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:18,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:18,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:18,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:18,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:18,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:18,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:18,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:18,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:18,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:18,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:18,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-10-29 04:53:18,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:18,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:18,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:18,060 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:18,060 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:18,060 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:18,061 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:53:18,061 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:18,061 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:18,061 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:53:18,061 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:53:18,061 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:18,062 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:53:18,062 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:53:18,062 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:53:18,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:18,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:53:18,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:18,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:53:18,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:18,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:53:18,064 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:18,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:53:18,065 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:18,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:53:18,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:18,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:18,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:18,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:18,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:18,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:53:18,066 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:53:18,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:53:18,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:53:18,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:18,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:18,067 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 [2021-10-29 04:53:18,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:18,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:18,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:18,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:18,368 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:18,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-10-29 04:53:18,433 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/07a12656e/1ea6ff14b07f4294bac542af29a0535d/FLAGe3f60c0fd [2021-10-29 04:53:19,249 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:19,251 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-10-29 04:53:19,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/07a12656e/1ea6ff14b07f4294bac542af29a0535d/FLAGe3f60c0fd [2021-10-29 04:53:19,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/07a12656e/1ea6ff14b07f4294bac542af29a0535d [2021-10-29 04:53:19,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:19,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:19,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:19,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:19,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:19,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:19" (1/1) ... [2021-10-29 04:53:19,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8bf8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:19, skipping insertion in model container [2021-10-29 04:53:19,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:19" (1/1) ... [2021-10-29 04:53:19,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:20,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:20,449 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-10-29 04:53:20,455 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-10-29 04:53:20,473 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:53:20,478 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:53:21,367 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,369 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,370 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,372 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,374 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,394 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,398 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,404 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,406 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,412 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,414 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,415 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,416 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:21,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:53:21,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:53:21,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:53:21,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:53:21,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:53:21,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:53:21,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:53:21,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:53:21,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:53:21,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:53:21,704 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1038) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:946) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2915) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2775) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2085) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1103) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1436) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-29 04:53:21,710 INFO L168 Benchmark]: Toolchain (without parser) took 1864.57 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 52.0 MB in the beginning and 49.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:21,711 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:21,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1859.53 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 51.9 MB in the beginning and 49.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:21,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1859.53 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 51.9 MB in the beginning and 49.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:193) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:53:24,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:24,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:24,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:24,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:24,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:24,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:24,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:24,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:24,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:24,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:24,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:24,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:24,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:24,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:24,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:24,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:24,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:24,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:24,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:24,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:24,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:24,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:24,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:24,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:24,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:24,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:24,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:24,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:24,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:24,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:24,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:24,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:24,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:24,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:24,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:24,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:24,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:24,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:24,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:24,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:24,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-10-29 04:53:24,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:24,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:24,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:24,375 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:24,376 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:24,376 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:24,376 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:24,376 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:24,377 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:24,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:24,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:24,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:53:24,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:24,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:53:24,380 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:24,380 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:53:24,380 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:53:24,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:53:24,381 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:24,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:53:24,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:24,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:53:24,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:24,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:24,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:24,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:24,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:53:24,383 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:53:24,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:53:24,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:53:24,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:24,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:24,384 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 [2021-10-29 04:53:24,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:24,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:24,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:24,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:24,810 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:24,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-10-29 04:53:24,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/10c9f242f/ec73d2015d454cdd8c87890bb7c15770/FLAG53132a684 [2021-10-29 04:53:25,607 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:25,608 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-10-29 04:53:25,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/10c9f242f/ec73d2015d454cdd8c87890bb7c15770/FLAG53132a684 [2021-10-29 04:53:25,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/data/10c9f242f/ec73d2015d454cdd8c87890bb7c15770 [2021-10-29 04:53:25,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:25,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:25,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:25,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:25,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:25,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:25" (1/1) ... [2021-10-29 04:53:25,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4250da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:25, skipping insertion in model container [2021-10-29 04:53:25,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:25" (1/1) ... [2021-10-29 04:53:25,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:25,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:26,217 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-10-29 04:53:26,225 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-10-29 04:53:26,245 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:53:26,249 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:53:26,924 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,925 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,926 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,927 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,933 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,960 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,964 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,969 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,971 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,975 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,976 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,977 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:26,978 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,166 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:53:27,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:53:27,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:53:27,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:53:27,172 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:53:27,173 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:53:27,174 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:53:27,175 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:53:27,178 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:53:27,178 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:53:27,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:27,283 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:53:27,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:27,322 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-10-29 04:53:27,323 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-10-29 04:53:27,324 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:53:27,325 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:53:27,371 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,372 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,372 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,373 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,374 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,384 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,396 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,397 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,398 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,399 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,400 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,401 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,401 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:53:27,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:53:27,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:53:27,435 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:53:27,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:53:27,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:53:27,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:53:27,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:53:27,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:53:27,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:53:27,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:27,470 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:53:27,483 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-10-29 04:53:27,484 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_d46a0a94-2d0e-48da-9528-b36b953f73d4/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-10-29 04:53:27,486 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:53:27,486 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:53:27,527 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,528 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,528 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,529 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,530 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,537 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,545 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,546 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,547 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,548 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,549 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,557 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,557 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:53:27,584 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:53:27,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:53:27,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:53:27,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:53:27,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:53:27,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:53:27,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:53:27,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:53:27,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:53:27,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:53:27,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:27,935 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:53:27,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27 WrapperNode [2021-10-29 04:53:27,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:27,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:27,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:53:27,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:53:27,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:28,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:53:28,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:53:28,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:53:28,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:53:28,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:53:28,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:53:28,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:53:28,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (1/1) ... [2021-10-29 04:53:28,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:28,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:28,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:53:28,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:53:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:53:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:53:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-10-29 04:53:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:53:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:53:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-29 04:53:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-29 04:53:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:53:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-29 04:53:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-29 04:53:31,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:53:31,169 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-10-29 04:53:31,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:31 BoogieIcfgContainer [2021-10-29 04:53:31,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:53:31,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:53:31,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:53:31,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:53:31,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:53:25" (1/3) ... [2021-10-29 04:53:31,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c89a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:31, skipping insertion in model container [2021-10-29 04:53:31,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:27" (2/3) ... [2021-10-29 04:53:31,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c89a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:31, skipping insertion in model container [2021-10-29 04:53:31,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:31" (3/3) ... [2021-10-29 04:53:31,179 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_using_uint64_harness.i [2021-10-29 04:53:31,185 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:53:31,185 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:53:31,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:53:31,239 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 [2021-10-29 04:53:31,239 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:53:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 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) [2021-10-29 04:53:31,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:53:31,283 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:31,283 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] [2021-10-29 04:53:31,284 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:31,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash 546734931, now seen corresponding path program 1 times [2021-10-29 04:53:31,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:31,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351770639] [2021-10-29 04:53:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:31,318 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:31,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:31,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:31,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:53:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:31,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:53:31,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:31,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:31,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:31,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351770639] [2021-10-29 04:53:31,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351770639] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:31,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:31,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:53:31,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057253070] [2021-10-29 04:53:31,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:53:31,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:31,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:53:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:53:31,949 INFO L87 Difference]: Start difference. First operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-10-29 04:53:31,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:31,977 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2021-10-29 04:53:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:53:31,978 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-10-29 04:53:31,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:31,987 INFO L225 Difference]: With dead ends: 111 [2021-10-29 04:53:31,987 INFO L226 Difference]: Without dead ends: 51 [2021-10-29 04:53:31,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:53:32,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-29 04:53:32,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-29 04:53:32,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 50 states have internal predecessors, (62), 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) [2021-10-29 04:53:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2021-10-29 04:53:32,030 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 31 [2021-10-29 04:53:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:32,030 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2021-10-29 04:53:32,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-10-29 04:53:32,031 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2021-10-29 04:53:32,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:53:32,033 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:32,033 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] [2021-10-29 04:53:32,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:32,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:32,249 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:32,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2045186899, now seen corresponding path program 1 times [2021-10-29 04:53:32,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:32,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029982550] [2021-10-29 04:53:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:32,252 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:32,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:32,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:32,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:53:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:32,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:53:32,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:33,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:33,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:33,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:33,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029982550] [2021-10-29 04:53:33,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029982550] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:33,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:33,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-10-29 04:53:33,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488855556] [2021-10-29 04:53:33,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 04:53:33,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:33,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 04:53:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:53:33,580 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 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) [2021-10-29 04:53:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:34,201 INFO L93 Difference]: Finished difference Result 139 states and 167 transitions. [2021-10-29 04:53:34,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:53:34,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 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 31 [2021-10-29 04:53:34,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:34,207 INFO L225 Difference]: With dead ends: 139 [2021-10-29 04:53:34,207 INFO L226 Difference]: Without dead ends: 101 [2021-10-29 04:53:34,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-10-29 04:53:34,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-29 04:53:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 68. [2021-10-29 04:53:34,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 67 states have internal predecessors, (79), 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) [2021-10-29 04:53:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-10-29 04:53:34,218 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 31 [2021-10-29 04:53:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:34,218 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-10-29 04:53:34,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 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) [2021-10-29 04:53:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-10-29 04:53:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:53:34,220 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:34,220 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] [2021-10-29 04:53:34,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:34,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:34,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:34,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1717651489, now seen corresponding path program 1 times [2021-10-29 04:53:34,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:34,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220069394] [2021-10-29 04:53:34,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:34,441 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:34,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:34,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:34,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:53:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:34,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 04:53:34,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:35,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:35,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:35,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220069394] [2021-10-29 04:53:35,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220069394] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:35,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:35,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2021-10-29 04:53:35,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727922383] [2021-10-29 04:53:35,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 04:53:35,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:35,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 04:53:35,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:53:35,705 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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) [2021-10-29 04:53:42,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:42,050 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2021-10-29 04:53:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 04:53:42,051 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 31 [2021-10-29 04:53:42,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:42,052 INFO L225 Difference]: With dead ends: 121 [2021-10-29 04:53:42,052 INFO L226 Difference]: Without dead ends: 97 [2021-10-29 04:53:42,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-29 04:53:42,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-29 04:53:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 70. [2021-10-29 04:53:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 67 states have (on average 1.208955223880597) internal successors, (81), 69 states have internal predecessors, (81), 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) [2021-10-29 04:53:42,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-10-29 04:53:42,061 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 31 [2021-10-29 04:53:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:42,061 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-10-29 04:53:42,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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) [2021-10-29 04:53:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-10-29 04:53:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:53:42,063 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:42,063 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] [2021-10-29 04:53:42,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:42,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:42,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:42,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:42,286 INFO L85 PathProgramCache]: Analyzing trace with hash 57355873, now seen corresponding path program 1 times [2021-10-29 04:53:42,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:42,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031119072] [2021-10-29 04:53:42,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:42,288 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:42,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:42,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:42,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:53:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:42,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:53:42,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:43,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:43,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:43,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:43,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:43,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031119072] [2021-10-29 04:53:43,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031119072] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:43,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:43,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-29 04:53:43,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129175994] [2021-10-29 04:53:43,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:53:43,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:43,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:53:43,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:53:43,796 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-29 04:53:43,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:43,913 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2021-10-29 04:53:43,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:53:43,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 31 [2021-10-29 04:53:43,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:43,916 INFO L225 Difference]: With dead ends: 75 [2021-10-29 04:53:43,916 INFO L226 Difference]: Without dead ends: 73 [2021-10-29 04:53:43,917 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:53:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-29 04:53:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-10-29 04:53:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.196969696969697) internal successors, (79), 67 states have internal predecessors, (79), 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) [2021-10-29 04:53:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-10-29 04:53:43,925 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 31 [2021-10-29 04:53:43,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:43,926 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-10-29 04:53:43,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-29 04:53:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-10-29 04:53:43,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-29 04:53:43,935 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:43,935 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] [2021-10-29 04:53:43,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:44,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:44,149 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:44,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:44,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1925927232, now seen corresponding path program 1 times [2021-10-29 04:53:44,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:44,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152929111] [2021-10-29 04:53:44,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:44,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:44,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:44,171 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:44,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:53:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:44,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:53:44,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:45,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:45,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:45,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152929111] [2021-10-29 04:53:45,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152929111] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:45,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:45,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 9 [2021-10-29 04:53:45,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432231641] [2021-10-29 04:53:45,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:53:45,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:45,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:53:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:53:45,730 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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) [2021-10-29 04:53:46,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:46,407 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2021-10-29 04:53:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 04:53:46,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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 36 [2021-10-29 04:53:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:46,412 INFO L225 Difference]: With dead ends: 98 [2021-10-29 04:53:46,412 INFO L226 Difference]: Without dead ends: 83 [2021-10-29 04:53:46,412 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-29 04:53:46,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-29 04:53:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2021-10-29 04:53:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 74 states have internal predecessors, (87), 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) [2021-10-29 04:53:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2021-10-29 04:53:46,449 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 36 [2021-10-29 04:53:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:46,454 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2021-10-29 04:53:46,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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) [2021-10-29 04:53:46,454 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2021-10-29 04:53:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 04:53:46,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:46,456 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:46,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:46,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:46,671 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:46,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:46,671 INFO L85 PathProgramCache]: Analyzing trace with hash 192927141, now seen corresponding path program 1 times [2021-10-29 04:53:46,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:46,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943463172] [2021-10-29 04:53:46,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:46,672 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:46,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:46,676 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:46,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:53:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:47,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:53:47,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:47,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:48,024 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:48,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943463172] [2021-10-29 04:53:48,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943463172] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:48,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:48,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 4] imperfect sequences [] total 10 [2021-10-29 04:53:48,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983006404] [2021-10-29 04:53:48,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:53:48,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:48,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:53:48,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-29 04:53:48,027 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2021-10-29 04:53:55,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:55,714 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2021-10-29 04:53:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 04:53:55,718 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-29 04:53:55,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:55,720 INFO L225 Difference]: With dead ends: 118 [2021-10-29 04:53:55,720 INFO L226 Difference]: Without dead ends: 99 [2021-10-29 04:53:55,720 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-29 04:53:55,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-29 04:53:55,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 77. [2021-10-29 04:53:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 76 states have internal predecessors, (89), 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) [2021-10-29 04:53:55,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2021-10-29 04:53:55,748 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 37 [2021-10-29 04:53:55,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:55,749 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2021-10-29 04:53:55,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2021-10-29 04:53:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2021-10-29 04:53:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 04:53:55,751 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:55,751 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:55,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:55,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:55,967 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:53:55,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:55,967 INFO L85 PathProgramCache]: Analyzing trace with hash 451092579, now seen corresponding path program 1 times [2021-10-29 04:53:55,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:55,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551142371] [2021-10-29 04:53:55,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:55,969 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:55,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:55,981 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:56,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 04:53:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:56,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 04:53:56,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:57,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:53:58,263 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:58,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551142371] [2021-10-29 04:53:58,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551142371] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:58,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:58,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 15 [2021-10-29 04:53:58,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920225920] [2021-10-29 04:53:58,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 04:53:58,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:58,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 04:53:58,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-10-29 04:53:58,266 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:54:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:54:01,141 INFO L93 Difference]: Finished difference Result 227 states and 266 transitions. [2021-10-29 04:54:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-29 04:54:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-29 04:54:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:54:01,156 INFO L225 Difference]: With dead ends: 227 [2021-10-29 04:54:01,156 INFO L226 Difference]: Without dead ends: 189 [2021-10-29 04:54:01,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2021-10-29 04:54:01,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-10-29 04:54:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 104. [2021-10-29 04:54:01,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 1.1568627450980393) internal successors, (118), 103 states have internal predecessors, (118), 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) [2021-10-29 04:54:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2021-10-29 04:54:01,190 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 37 [2021-10-29 04:54:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:54:01,203 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2021-10-29 04:54:01,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:54:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2021-10-29 04:54:01,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 04:54:01,206 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:01,206 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:54:01,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 04:54:01,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:54:01,422 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash -13077673, now seen corresponding path program 1 times [2021-10-29 04:54:01,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:54:01,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499378605] [2021-10-29 04:54:01,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:01,424 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:54:01,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:54:01,433 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:54:01,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 04:54:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:01,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 04:54:01,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:54:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:02,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:54:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:02,784 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:54:02,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499378605] [2021-10-29 04:54:02,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499378605] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:54:02,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:54:02,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 3] imperfect sequences [] total 7 [2021-10-29 04:54:02,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459782383] [2021-10-29 04:54:02,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:54:02,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:54:02,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:54:02,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:54:02,787 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-10-29 04:54:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:54:03,604 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2021-10-29 04:54:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:54:03,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-29 04:54:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:54:03,606 INFO L225 Difference]: With dead ends: 130 [2021-10-29 04:54:03,606 INFO L226 Difference]: Without dead ends: 87 [2021-10-29 04:54:03,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:54:03,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-29 04:54:03,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-29 04:54:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 86 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:54:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2021-10-29 04:54:03,625 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 37 [2021-10-29 04:54:03,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:54:03,626 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2021-10-29 04:54:03,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-10-29 04:54:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2021-10-29 04:54:03,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-29 04:54:03,631 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:03,631 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] [2021-10-29 04:54:03,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 04:54:03,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:54:03,847 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:03,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:03,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1284407490, now seen corresponding path program 1 times [2021-10-29 04:54:03,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:54:03,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821814071] [2021-10-29 04:54:03,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:03,849 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:54:03,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:54:03,851 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:54:03,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 04:54:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:04,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:54:04,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:54:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:04,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:54:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:04,884 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:54:04,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821814071] [2021-10-29 04:54:04,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821814071] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:54:04,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:54:04,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 9 [2021-10-29 04:54:04,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099078700] [2021-10-29 04:54:04,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:54:04,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:54:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:54:04,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:54:04,887 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:54:05,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:54:05,426 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2021-10-29 04:54:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:54:05,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-10-29 04:54:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:54:05,427 INFO L225 Difference]: With dead ends: 95 [2021-10-29 04:54:05,427 INFO L226 Difference]: Without dead ends: 61 [2021-10-29 04:54:05,428 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:54:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-29 04:54:05,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-29 04:54:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 60 states have internal predecessors, (72), 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) [2021-10-29 04:54:05,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2021-10-29 04:54:05,435 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 38 [2021-10-29 04:54:05,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:54:05,435 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2021-10-29 04:54:05,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:54:05,436 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2021-10-29 04:54:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 04:54:05,436 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:05,437 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] [2021-10-29 04:54:05,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 04:54:05,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:54:05,656 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:05,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:05,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1330474785, now seen corresponding path program 1 times [2021-10-29 04:54:05,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:54:05,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291326969] [2021-10-29 04:54:05,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:05,657 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:54:05,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:54:05,658 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:54:05,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 04:54:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:06,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 04:54:06,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:54:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:06,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:54:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:07,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:54:07,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291326969] [2021-10-29 04:54:07,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291326969] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:54:07,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [937430209] [2021-10-29 04:54:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:07,999 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:54:07,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:54:08,006 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:54:08,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-29 04:54:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:08,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:54:08,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:54:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:09,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:54:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:09,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [937430209] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:54:09,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668960355] [2021-10-29 04:54:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:09,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:54:09,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:54:09,919 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:54:09,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-29 04:54:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:10,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 04:54:10,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:54:11,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:11,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:54:11,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:11,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668960355] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:54:11,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 04:54:11,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10, 10, 10, 11] total 36 [2021-10-29 04:54:11,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853309168] [2021-10-29 04:54:11,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-29 04:54:11,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:54:11,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-29 04:54:11,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1051, Unknown=0, NotChecked=0, Total=1260 [2021-10-29 04:54:11,874 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 36 states, 36 states have (on average 2.611111111111111) internal successors, (94), 36 states have internal predecessors, (94), 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) [2021-10-29 04:54:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:54:15,071 INFO L93 Difference]: Finished difference Result 194 states and 231 transitions. [2021-10-29 04:54:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-29 04:54:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.611111111111111) internal successors, (94), 36 states have internal predecessors, (94), 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 39 [2021-10-29 04:54:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:54:15,073 INFO L225 Difference]: With dead ends: 194 [2021-10-29 04:54:15,073 INFO L226 Difference]: Without dead ends: 156 [2021-10-29 04:54:15,075 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=557, Invalid=2095, Unknown=0, NotChecked=0, Total=2652 [2021-10-29 04:54:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-29 04:54:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 82. [2021-10-29 04:54:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.1875) internal successors, (95), 81 states have internal predecessors, (95), 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) [2021-10-29 04:54:15,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2021-10-29 04:54:15,085 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 39 [2021-10-29 04:54:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:54:15,085 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2021-10-29 04:54:15,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.611111111111111) internal successors, (94), 36 states have internal predecessors, (94), 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) [2021-10-29 04:54:15,085 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2021-10-29 04:54:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 04:54:15,086 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:15,086 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] [2021-10-29 04:54:15,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-10-29 04:54:15,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-29 04:54:15,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-29 04:54:15,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 04:54:15,726 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash -649514281, now seen corresponding path program 1 times [2021-10-29 04:54:15,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:54:15,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840853529] [2021-10-29 04:54:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:15,728 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:54:15,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:54:15,736 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:54:15,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-29 04:54:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:54:16,441 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:54:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:54:16,881 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:54:16,881 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:54:16,882 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:54:16,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:54:16,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:54:16,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-29 04:54:17,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:54:17,112 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:54:17,116 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:54:17,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:54:17 BoogieIcfgContainer [2021-10-29 04:54:17,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:54:17,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:54:17,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:54:17,290 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:54:17,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:31" (3/4) ... [2021-10-29 04:54:17,293 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:54:17,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:54:17,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:54:17,424 INFO L168 Benchmark]: Toolchain (without parser) took 51686.90 ms. Allocated memory was 65.0 MB in the beginning and 123.7 MB in the end (delta: 58.7 MB). Free memory was 40.9 MB in the beginning and 64.8 MB in the end (delta: -24.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:17,425 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:54:17,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2199.18 ms. Allocated memory was 65.0 MB in the beginning and 123.7 MB in the end (delta: 58.7 MB). Free memory was 40.6 MB in the beginning and 92.0 MB in the end (delta: -51.4 MB). Peak memory consumption was 37.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:17,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 210.41 ms. Allocated memory is still 123.7 MB. Free memory was 92.0 MB in the beginning and 86.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:17,426 INFO L168 Benchmark]: Boogie Preprocessor took 95.78 ms. Allocated memory is still 123.7 MB. Free memory was 86.0 MB in the beginning and 82.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:17,427 INFO L168 Benchmark]: RCFGBuilder took 2926.12 ms. Allocated memory is still 123.7 MB. Free memory was 82.8 MB in the beginning and 58.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:17,427 INFO L168 Benchmark]: TraceAbstraction took 46116.02 ms. Allocated memory is still 123.7 MB. Free memory was 57.7 MB in the beginning and 70.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:17,427 INFO L168 Benchmark]: Witness Printer took 132.87 ms. Allocated memory is still 123.7 MB. Free memory was 70.2 MB in the beginning and 64.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:17,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2199.18 ms. Allocated memory was 65.0 MB in the beginning and 123.7 MB in the end (delta: 58.7 MB). Free memory was 40.6 MB in the beginning and 92.0 MB in the end (delta: -51.4 MB). Peak memory consumption was 37.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 210.41 ms. Allocated memory is still 123.7 MB. Free memory was 92.0 MB in the beginning and 86.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.78 ms. Allocated memory is still 123.7 MB. Free memory was 86.0 MB in the beginning and 82.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2926.12 ms. Allocated memory is still 123.7 MB. Free memory was 82.8 MB in the beginning and 58.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 46116.02 ms. Allocated memory is still 123.7 MB. Free memory was 57.7 MB in the beginning and 70.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Witness Printer took 132.87 ms. Allocated memory is still 123.7 MB. Free memory was 70.2 MB in the beginning and 64.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5937] short d1[160]; [L5938] short d2[160]; [L5939] int c = __VERIFIER_nondet_int(); [L5940] unsigned size = __VERIFIER_nondet_uint(); [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND FALSE !(i < n) [L5876] return s; [L211] COND FALSE !(!cond) [L5883] size_t num_uint64s = n >> 3; [L5884] size_t rem = n & 0x7; [L5886] uint8_t *d = (uint8_t *)dst; [L5890] case 7: [L5892] case 6: [L5894] case 5: [L5896] case 4: [L5898] case 3: [L5900] case 2: [L5902] case 1: [L5903] d[0] = c [L5906] d += rem [L5908] uint64_t compounded = 0; [L5909] COND FALSE !(num_uint64s > 0 && c != 0) [L5921] size_t i = 0; [L5921] COND FALSE !(i < num_uint64s) [L5925] return dst; [L5908] uint64_t compounded = 0; [L5925] return dst; [L223] COND FALSE !(!cond) [L5655-L5658] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L5660] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) [L5664] a[i] [L5664] b[i] [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 45.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 515 SDtfs, 2792 SDslu, 2274 SDs, 0 SdLazy, 1090 SolverSat, 340 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 17.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 890 GetRequests, 732 SyntacticMatches, 2 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=7, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 254 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 465 NumberOfCodeBlocks, 465 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 828 ConstructedInterpolants, 68 QuantifiedInterpolants, 3622 SizeOfPredicates, 87 NumberOfNonLiveVariables, 1779 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 24 InterpolantComputations, 18 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:54:17,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46a0a94-2d0e-48da-9528-b36b953f73d4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...