./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P --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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:22:16,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:22:16,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:22:16,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:22:16,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:22:16,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:22:16,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:22:16,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:22:16,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:22:16,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:22:16,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:22:16,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:22:16,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:22:16,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:22:16,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:22:16,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:22:16,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:22:16,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:22:16,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:22:16,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:22:16,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:22:16,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:22:16,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:22:16,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:22:16,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:22:16,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:22:16,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:22:16,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:22:16,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:22:16,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:22:16,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:22:16,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:22:16,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:22:16,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:22:16,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:22:16,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:22:16,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:22:16,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:22:16,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:22:16,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:22:16,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:22:16,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:22:16,787 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:22:16,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:22:16,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:22:16,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:22:16,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:22:16,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:22:16,798 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:22:16,799 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:22:16,799 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:22:16,799 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:22:16,801 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:22:16,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:22:16,801 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:22:16,802 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:22:16,802 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:22:16,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:22:16,803 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:22:16,803 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:22:16,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:22:16,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:22:16,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:22:16,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:22:16,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:22:16,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:22:16,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:22:16,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:22:16,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:22:16,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:22:16,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:22:16,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:22:16,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:22:16,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:22:16,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:22:16,812 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:22:16,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:22:16,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:22:16,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:22:16,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:22:16,814 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_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2021-11-21 00:22:17,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:22:17,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:22:17,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:22:17,198 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:22:17,199 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:22:17,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-21 00:22:17,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/data/bf7e23074/e4e5a9db4cf04672b9235e46440327e6/FLAGb7632ada3 [2021-11-21 00:22:18,391 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:22:18,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-21 00:22:18,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/data/bf7e23074/e4e5a9db4cf04672b9235e46440327e6/FLAGb7632ada3 [2021-11-21 00:22:18,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/data/bf7e23074/e4e5a9db4cf04672b9235e46440327e6 [2021-11-21 00:22:18,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:22:18,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:22:18,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:22:18,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:22:18,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:22:18,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:22:18" (1/1) ... [2021-11-21 00:22:18,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ad0807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:18, skipping insertion in model container [2021-11-21 00:22:18,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:22:18" (1/1) ... [2021-11-21 00:22:18,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:22:18,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:22:19,428 WARN L230 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_056da61e-4964-4566-8d63-63dc1eac6639/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-21 00:22:19,439 WARN L230 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_056da61e-4964-4566-8d63-63dc1eac6639/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-21 00:22:21,025 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,026 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,026 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,028 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,029 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,047 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,048 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,051 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,052 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,055 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,056 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,057 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,058 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:21,626 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:22:21,628 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:22:21,649 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:22:21,650 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:22:21,659 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:22:21,660 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:22:21,662 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:22:21,662 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:22:21,663 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:22:21,674 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:22:21,975 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:22:22,500 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,503 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,555 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,564 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,574 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,575 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,609 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,612 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,613 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,614 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,614 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,615 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,616 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:22:22,709 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:22:22,726 WARN L230 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_056da61e-4964-4566-8d63-63dc1eac6639/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-21 00:22:22,727 WARN L230 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_056da61e-4964-4566-8d63-63dc1eac6639/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-21 00:22:22,769 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,770 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,770 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,771 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,772 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,791 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,791 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,794 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,795 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,796 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,798 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,798 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,799 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:22,886 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:22:22,887 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:22:22,888 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:22:22,890 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:22:22,891 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:22:22,892 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:22:22,892 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:22:22,893 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:22:22,894 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:22:22,894 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:22:22,956 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:22:23,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,105 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,106 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,110 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,110 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,126 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,126 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,127 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,127 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,128 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,128 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:22:23,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:22:23,640 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:22:23,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23 WrapperNode [2021-11-21 00:22:23,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:22:23,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:22:23,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:22:23,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:22:23,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:23,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:23,953 INFO L137 Inliner]: procedures = 774, calls = 2452, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 641 [2021-11-21 00:22:23,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:22:23,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:22:23,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:22:23,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:22:23,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:23,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:23,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:23,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:24,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:24,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:24,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:24,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:22:24,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:22:24,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:22:24,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:22:24,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (1/1) ... [2021-11-21 00:22:24,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:22:24,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:22:24,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:22:24,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:22:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 00:22:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:22:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-21 00:22:24,275 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-21 00:22:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:22:24,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:22:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-21 00:22:24,276 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-21 00:22:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:22:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:22:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2021-11-21 00:22:24,277 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2021-11-21 00:22:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:22:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:22:24,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:22:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 00:22:24,279 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 00:22:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-21 00:22:24,280 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-21 00:22:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:22:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-21 00:22:24,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-21 00:22:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:22:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-21 00:22:24,281 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-21 00:22:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:22:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-21 00:22:24,282 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-21 00:22:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:22:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-21 00:22:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-21 00:22:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2021-11-21 00:22:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2021-11-21 00:22:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 00:22:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 00:22:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2021-11-21 00:22:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2021-11-21 00:22:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-21 00:22:24,289 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-21 00:22:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:22:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-21 00:22:24,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-21 00:22:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-21 00:22:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-21 00:22:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:22:24,694 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:22:24,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:22:25,902 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:22:26,197 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:22:26,197 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:22:26,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:22:26 BoogieIcfgContainer [2021-11-21 00:22:26,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:22:26,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:22:26,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:22:26,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:22:26,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:22:18" (1/3) ... [2021-11-21 00:22:26,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661398d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:22:26, skipping insertion in model container [2021-11-21 00:22:26,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:23" (2/3) ... [2021-11-21 00:22:26,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661398d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:22:26, skipping insertion in model container [2021-11-21 00:22:26,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:22:26" (3/3) ... [2021-11-21 00:22:26,215 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2021-11-21 00:22:26,222 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:22:26,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:22:26,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:22:26,313 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:22:26,319 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:22:26,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-11-21 00:22:26,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-21 00:22:26,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:22:26,369 INFO L514 BasicCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:22:26,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:22:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:22:26,377 INFO L85 PathProgramCache]: Analyzing trace with hash -256281460, now seen corresponding path program 1 times [2021-11-21 00:22:26,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:22:26,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275203983] [2021-11-21 00:22:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:26,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:22:26,916 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:22:26,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146514556] [2021-11-21 00:22:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:26,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:22:26,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:22:26,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:22:26,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:22:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:27,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 2394 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:22:27,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:22:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-21 00:22:28,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:22:28,006 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:22:28,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275203983] [2021-11-21 00:22:28,007 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:22:28,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146514556] [2021-11-21 00:22:28,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146514556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:22:28,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:22:28,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 00:22:28,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276376366] [2021-11-21 00:22:28,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:22:28,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:22:28,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:22:28,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:22:28,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:22:28,048 INFO L87 Difference]: Start difference. First operand has 129 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:22:28,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:22:28,758 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2021-11-21 00:22:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:22:28,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 117 [2021-11-21 00:22:28,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:22:28,775 INFO L225 Difference]: With dead ends: 237 [2021-11-21 00:22:28,775 INFO L226 Difference]: Without dead ends: 129 [2021-11-21 00:22:28,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:22:28,784 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 118 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:22:28,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 448 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:22:28,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-21 00:22:28,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-21 00:22:28,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 68 states have (on average 1.161764705882353) internal successors, (79), 70 states have internal predecessors, (79), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2021-11-21 00:22:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2021-11-21 00:22:28,855 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 117 [2021-11-21 00:22:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:22:28,856 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2021-11-21 00:22:28,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:22:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2021-11-21 00:22:28,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 00:22:28,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:22:28,862 INFO L514 BasicCegarLoop]: trace histogram [10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:22:28,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:22:29,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 00:22:29,087 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:22:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:22:29,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1181171274, now seen corresponding path program 1 times [2021-11-21 00:22:29,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:22:29,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448592617] [2021-11-21 00:22:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:29,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:22:29,260 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:22:29,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153533816] [2021-11-21 00:22:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:29,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:22:29,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:22:29,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:22:29,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:22:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:29,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 2399 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:22:29,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:22:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 57 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-21 00:22:30,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:22:30,917 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 00:22:30,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:22:30,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448592617] [2021-11-21 00:22:30,918 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:22:30,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153533816] [2021-11-21 00:22:30,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153533816] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:22:30,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [528028077] [2021-11-21 00:22:30,948 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2021-11-21 00:22:30,948 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:22:30,954 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:22:30,961 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:22:30,961 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:22:38,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:22:38,637 INFO L244 Elim1Store]: Index analysis took 495 ms [2021-11-21 00:22:58,803 WARN L227 SmtUtils]: Spent 20.07s on a formula simplification. DAG size of input: 1767 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:22:58,814 INFO L354 Elim1Store]: treesize reduction 1960, result has 47.4 percent of original size [2021-11-21 00:22:58,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 196 case distinctions, treesize of input 992 treesize of output 2366 [2021-11-21 00:23:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:23:31,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:23:31,816 INFO L244 Elim1Store]: Index analysis took 813 ms [2021-11-21 00:24:09,414 WARN L227 SmtUtils]: Spent 37.52s on a formula simplification. DAG size of input: 2161 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:24:09,420 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-21 00:24:09,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19505 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 392 case distinctions, treesize of input 1002 treesize of output 2377 [2021-11-21 00:24:47,852 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 00:24:47,989 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 00:24:48,509 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 00:24:53,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 00:24:53,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:24:54,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 00:24:54,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:24:54,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 22 [2021-11-21 00:24:54,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 00:24:54,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:24:54,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:24:54,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:24:54,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:24:55,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 00:24:55,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 00:24:55,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 00:24:55,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 00:24:56,878 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 00:24:57,139 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 00:24:57,244 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 57 for LOIs [2021-11-21 00:24:57,409 INFO L197 IcfgInterpreter]: Interpreting procedure aws_is_power_of_two with input of size 67 for LOIs [2021-11-21 00:24:57,666 INFO L197 IcfgInterpreter]: Interpreting procedure hash_table_state_required_bytes with input of size 97 for LOIs [2021-11-21 00:24:58,408 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:24:58,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-11-21 00:24:58,457 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:24:58,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 34 [2021-11-21 00:24:59,368 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:24:59,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-11-21 00:24:59,424 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:24:59,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 34 [2021-11-21 00:25:00,845 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:25:00,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-11-21 00:25:00,886 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:25:00,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 34 [2021-11-21 00:25:01,136 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 111 for LOIs [2021-11-21 00:25:06,386 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 95 for LOIs [2021-11-21 00:25:06,726 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 61 for LOIs [2021-11-21 00:25:06,864 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:25:13,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [528028077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:25:13,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:25:13,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [8, 8] total 33 [2021-11-21 00:25:13,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073413477] [2021-11-21 00:25:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:25:13,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-21 00:25:13,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:25:13,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-21 00:25:13,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=937, Unknown=0, NotChecked=0, Total=1056 [2021-11-21 00:25:13,584 INFO L87 Difference]: Start difference. First operand 129 states and 167 transitions. Second operand has 22 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2021-11-21 00:25:15,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:25:15,293 INFO L93 Difference]: Finished difference Result 264 states and 339 transitions. [2021-11-21 00:25:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-21 00:25:15,295 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 118 [2021-11-21 00:25:15,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:25:15,298 INFO L225 Difference]: With dead ends: 264 [2021-11-21 00:25:15,298 INFO L226 Difference]: Without dead ends: 145 [2021-11-21 00:25:15,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=119, Invalid=937, Unknown=0, NotChecked=0, Total=1056 [2021-11-21 00:25:15,304 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 5 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 525 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:25:15,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1023 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 435 Invalid, 0 Unknown, 525 Unchecked, 1.6s Time] [2021-11-21 00:25:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-21 00:25:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2021-11-21 00:25:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 77 states have (on average 1.155844155844156) internal successors, (89), 78 states have internal predecessors, (89), 45 states have call successors, (45), 21 states have call predecessors, (45), 21 states have return successors, (48), 44 states have call predecessors, (48), 44 states have call successors, (48) [2021-11-21 00:25:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2021-11-21 00:25:15,363 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 182 transitions. Word has length 118 [2021-11-21 00:25:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:25:15,369 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 182 transitions. [2021-11-21 00:25:15,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2021-11-21 00:25:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 182 transitions. [2021-11-21 00:25:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-21 00:25:15,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:25:15,373 INFO L514 BasicCegarLoop]: trace histogram [10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:25:15,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:25:15,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:25:15,601 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:25:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:25:15,602 INFO L85 PathProgramCache]: Analyzing trace with hash 526693157, now seen corresponding path program 1 times [2021-11-21 00:25:15,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:25:15,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848758261] [2021-11-21 00:25:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:25:15,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:25:15,699 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:25:15,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538709622] [2021-11-21 00:25:15,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:25:15,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:25:15,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:25:15,708 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:25:15,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056da61e-4964-4566-8d63-63dc1eac6639/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:25:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:25:16,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:25:16,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:25:16,633 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 57 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-21 00:25:16,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:25:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 00:25:17,090 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:25:17,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848758261] [2021-11-21 00:25:17,091 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:25:17,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538709622] [2021-11-21 00:25:17,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538709622] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:25:17,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [342496896] [2021-11-21 00:25:17,097 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2021-11-21 00:25:17,098 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:25:17,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:25:17,099 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:25:17,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:25:20,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:25:20,263 INFO L244 Elim1Store]: Index analysis took 277 ms [2021-11-21 00:26:00,429 WARN L227 SmtUtils]: Spent 40.11s on a formula simplification. DAG size of input: 2161 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:26:00,433 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-21 00:26:00,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19505 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 392 case distinctions, treesize of input 1002 treesize of output 2377 [2021-11-21 00:26:36,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:26:37,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19503 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 992 treesize of output 1582