./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_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_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/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_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/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_69067bc5-8674-4007-97cd-ff64dfa105f5/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 fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:30:50,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:30:50,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:30:50,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:30:50,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:30:50,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:30:50,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:30:50,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:30:50,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:30:50,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:30:50,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:30:50,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:30:50,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:30:50,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:30:50,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:30:50,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:30:50,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:30:50,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:30:50,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:30:50,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:30:50,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:30:50,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:30:50,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:30:50,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:30:50,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:30:50,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:30:50,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:30:50,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:30:50,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:30:50,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:30:50,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:30:50,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:30:50,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:30:50,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:30:50,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:30:50,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:30:50,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:30:50,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:30:50,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:30:50,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:30:50,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:30:50,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:30:50,895 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:30:50,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:30:50,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:30:50,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:30:50,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:30:50,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:30:50,897 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:30:50,898 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:30:50,898 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:30:50,898 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:30:50,898 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:30:50,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:30:50,899 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:30:50,899 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:30:50,899 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:30:50,900 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:30:50,900 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:30:50,900 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:30:50,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:30:50,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:30:50,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:30:50,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:30:50,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:30:50,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:30:50,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:30:50,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:30:50,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:30:50,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:30:50,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:30:50,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:30:50,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:30:50,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:30:50,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:30:50,906 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:30:50,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:30:50,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:30:50,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:30:50,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:30:50,907 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_69067bc5-8674-4007-97cd-ff64dfa105f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-21 01:30:51,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:30:51,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:30:51,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:30:51,256 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:30:51,257 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:30:51,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-21 01:30:51,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/data/326095925/d4eb818822af4ffa9597cd2fde66ef45/FLAGe78ffe7c5 [2021-11-21 01:30:52,478 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:30:52,479 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-21 01:30:52,529 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/data/326095925/d4eb818822af4ffa9597cd2fde66ef45/FLAGe78ffe7c5 [2021-11-21 01:30:52,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/data/326095925/d4eb818822af4ffa9597cd2fde66ef45 [2021-11-21 01:30:52,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:30:52,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:30:52,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:30:52,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:30:52,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:30:52,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:30:52" (1/1) ... [2021-11-21 01:30:52,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a97a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:52, skipping insertion in model container [2021-11-21 01:30:52,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:30:52" (1/1) ... [2021-11-21 01:30:52,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:30:53,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:30:53,385 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_69067bc5-8674-4007-97cd-ff64dfa105f5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-21 01:30:53,393 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_69067bc5-8674-4007-97cd-ff64dfa105f5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-21 01:30:54,484 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:30:54,612 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,623 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,624 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,625 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,626 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,643 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,644 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,646 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:54,647 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,041 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:30:55,043 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:30:55,044 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:30:55,046 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:30:55,048 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:30:55,049 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:30:55,050 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:30:55,051 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:30:55,052 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:30:55,053 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:30:55,239 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,239 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:30:55,398 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:30:55,447 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_69067bc5-8674-4007-97cd-ff64dfa105f5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-21 01:30:55,448 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_69067bc5-8674-4007-97cd-ff64dfa105f5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-21 01:30:55,536 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:30:55,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,592 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,593 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,593 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,594 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,602 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,602 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,604 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,604 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,644 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:30:55,645 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:30:55,646 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:30:55,647 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:30:55,649 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:30:55,649 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:30:55,650 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:30:55,651 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:30:55,652 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:30:55,652 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:30:55,688 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,688 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:30:55,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:30:55,985 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:30:55,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55 WrapperNode [2021-11-21 01:30:55,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:30:55,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:30:55,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:30:55,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:30:55,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,213 INFO L137 Inliner]: procedures = 689, calls = 1514, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 736 [2021-11-21 01:30:56,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:30:56,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:30:56,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:30:56,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:30:56,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:30:56,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:30:56,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:30:56,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:30:56,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (1/1) ... [2021-11-21 01:30:56,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:30:56,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:30:56,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:30:56,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:30:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-21 01:30:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-21 01:30:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:30:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-21 01:30:56,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-21 01:30:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 01:30:56,537 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 01:30:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-21 01:30:56,538 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-21 01:30:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:30:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-21 01:30:56,539 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-21 01:30:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:30:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:30:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:30:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:30:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:30:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:30:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:30:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 01:30:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 01:30:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-21 01:30:56,543 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-21 01:30:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-21 01:30:56,544 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-21 01:30:56,544 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-21 01:30:56,545 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-21 01:30:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:30:56,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:30:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:30:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:30:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:30:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 01:30:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 01:30:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-21 01:30:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-21 01:30:56,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:30:56,548 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-11-21 01:30:56,549 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-11-21 01:30:56,549 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-11-21 01:30:56,549 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-11-21 01:30:56,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:30:56,995 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:30:57,005 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:30:58,558 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:30:58,817 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:30:58,817 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-21 01:30:58,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:30:58 BoogieIcfgContainer [2021-11-21 01:30:58,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:30:58,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:30:58,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:30:58,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:30:58,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:30:52" (1/3) ... [2021-11-21 01:30:58,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4701c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:30:58, skipping insertion in model container [2021-11-21 01:30:58,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:55" (2/3) ... [2021-11-21 01:30:58,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4701c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:30:58, skipping insertion in model container [2021-11-21 01:30:58,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:30:58" (3/3) ... [2021-11-21 01:30:58,836 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2021-11-21 01:30:58,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:30:58,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:30:58,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:30:58,966 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 01:30:58,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:30:59,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 87 states have (on average 1.2298850574712643) internal successors, (107), 87 states have internal predecessors, (107), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-11-21 01:30:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 01:30:59,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:59,027 INFO L514 BasicCegarLoop]: trace histogram [10, 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] [2021-11-21 01:30:59,028 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1310394539, now seen corresponding path program 1 times [2021-11-21 01:30:59,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:59,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031500011] [2021-11-21 01:30:59,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:59,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:59,452 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:30:59,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298301123] [2021-11-21 01:30:59,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:59,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:30:59,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:30:59,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:30:59,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:31:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:00,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:31:00,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:31:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-21 01:31:00,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:31:00,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:00,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031500011] [2021-11-21 01:31:00,476 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:31:00,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298301123] [2021-11-21 01:31:00,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298301123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:00,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:00,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:31:00,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91498694] [2021-11-21 01:31:00,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:00,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:31:00,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:31:00,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:31:00,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:31:00,533 INFO L87 Difference]: Start difference. First operand has 155 states, 87 states have (on average 1.2298850574712643) internal successors, (107), 87 states have internal predecessors, (107), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:31:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:00,775 INFO L93 Difference]: Finished difference Result 295 states and 415 transitions. [2021-11-21 01:31:00,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:31:00,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 71 [2021-11-21 01:31:00,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:00,798 INFO L225 Difference]: With dead ends: 295 [2021-11-21 01:31:00,798 INFO L226 Difference]: Without dead ends: 151 [2021-11-21 01:31:00,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:31:00,821 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:31:00,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:31:00,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-21 01:31:00,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-11-21 01:31:00,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 84 states have internal predecessors, (99), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-21 01:31:00,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 203 transitions. [2021-11-21 01:31:00,937 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 203 transitions. Word has length 71 [2021-11-21 01:31:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:31:00,940 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 203 transitions. [2021-11-21 01:31:00,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:31:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 203 transitions. [2021-11-21 01:31:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-21 01:31:00,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:00,951 INFO L514 BasicCegarLoop]: trace histogram [12, 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] [2021-11-21 01:31:01,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:31:01,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 01:31:01,175 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:01,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 290652694, now seen corresponding path program 1 times [2021-11-21 01:31:01,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:01,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638094941] [2021-11-21 01:31:01,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:01,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:01,351 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:31:01,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962872805] [2021-11-21 01:31:01,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:01,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:31:01,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:31:01,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:31:01,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:31:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:02,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 2255 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:31:02,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:31:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-11-21 01:31:02,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:31:02,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:02,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638094941] [2021-11-21 01:31:02,343 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:31:02,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962872805] [2021-11-21 01:31:02,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962872805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:02,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:02,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:31:02,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623540940] [2021-11-21 01:31:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:02,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:31:02,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:31:02,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:31:02,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:31:02,350 INFO L87 Difference]: Start difference. First operand 151 states and 203 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-21 01:31:03,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:03,522 INFO L93 Difference]: Finished difference Result 290 states and 385 transitions. [2021-11-21 01:31:03,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:31:03,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 97 [2021-11-21 01:31:03,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:03,527 INFO L225 Difference]: With dead ends: 290 [2021-11-21 01:31:03,527 INFO L226 Difference]: Without dead ends: 151 [2021-11-21 01:31:03,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:31:03,531 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 8 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:31:03,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 868 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-21 01:31:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-21 01:31:03,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-11-21 01:31:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 84 states have internal predecessors, (98), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-21 01:31:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 202 transitions. [2021-11-21 01:31:03,555 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 202 transitions. Word has length 97 [2021-11-21 01:31:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:31:03,556 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 202 transitions. [2021-11-21 01:31:03,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-21 01:31:03,557 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 202 transitions. [2021-11-21 01:31:03,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-21 01:31:03,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:03,561 INFO L514 BasicCegarLoop]: trace histogram [12, 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] [2021-11-21 01:31:03,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:31:03,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:31:03,781 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:03,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:03,782 INFO L85 PathProgramCache]: Analyzing trace with hash 962561932, now seen corresponding path program 1 times [2021-11-21 01:31:03,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:03,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192096219] [2021-11-21 01:31:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:03,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:03,875 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:31:03,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440894217] [2021-11-21 01:31:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:03,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:31:03,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:31:03,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:31:03,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:31:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:04,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 2269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:31:04,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:31:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-21 01:31:04,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:31:04,793 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:04,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192096219] [2021-11-21 01:31:04,793 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:31:04,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440894217] [2021-11-21 01:31:04,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440894217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:04,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:04,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:31:04,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288726024] [2021-11-21 01:31:04,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:04,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:31:04,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:31:04,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:31:04,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:31:04,805 INFO L87 Difference]: Start difference. First operand 151 states and 202 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:31:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:05,337 INFO L93 Difference]: Finished difference Result 287 states and 383 transitions. [2021-11-21 01:31:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:31:05,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 99 [2021-11-21 01:31:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:05,341 INFO L225 Difference]: With dead ends: 287 [2021-11-21 01:31:05,342 INFO L226 Difference]: Without dead ends: 152 [2021-11-21 01:31:05,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:31:05,344 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:31:05,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 358 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 01:31:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-21 01:31:05,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-11-21 01:31:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 85 states have internal predecessors, (99), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-21 01:31:05,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 203 transitions. [2021-11-21 01:31:05,394 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 203 transitions. Word has length 99 [2021-11-21 01:31:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:31:05,395 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 203 transitions. [2021-11-21 01:31:05,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:31:05,395 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2021-11-21 01:31:05,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-21 01:31:05,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:05,399 INFO L514 BasicCegarLoop]: trace histogram [12, 2, 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] [2021-11-21 01:31:05,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:31:05,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:31:05,619 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:05,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:05,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2095342226, now seen corresponding path program 1 times [2021-11-21 01:31:05,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:31:05,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196566] [2021-11-21 01:31:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:05,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:31:05,710 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:31:05,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364938631] [2021-11-21 01:31:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:05,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:31:05,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:31:05,712 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:31:05,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69067bc5-8674-4007-97cd-ff64dfa105f5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:31:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:06,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 01:31:06,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:31:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-21 01:31:06,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:31:07,618 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-21 01:31:07,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:31:07,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196566] [2021-11-21 01:31:07,619 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:31:07,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364938631] [2021-11-21 01:31:07,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364938631] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:31:07,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1681087449] [2021-11-21 01:31:07,655 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2021-11-21 01:31:07,655 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:31:07,662 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:31:07,670 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:31:07,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:31:22,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:31:22,766 INFO L244 Elim1Store]: Index analysis took 496 ms [2021-11-21 01:31:44,804 WARN L227 SmtUtils]: Spent 21.91s on a formula simplification. DAG size of input: 1767 DAG size of output: 1175 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:31:44,814 INFO L354 Elim1Store]: treesize reduction 1968, result has 47.2 percent of original size [2021-11-21 01:31:44,821 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 2358 [2021-11-21 01:32:10,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:11,606 INFO L244 Elim1Store]: Index analysis took 1100 ms [2021-11-21 01:32:49,170 WARN L227 SmtUtils]: Spent 37.48s 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 01:32:49,175 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-21 01:32:49,181 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 01:33:16,301 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:33:16,422 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:33:16,847 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:33:17,322 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 01:33:17,403 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 01:33:20,524 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 01:33:20,527 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 01:33:20,706 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 01:33:20,720 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 01:33:20,731 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 01:33:20,765 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 01:33:21,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:33:21,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:33:21,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:33:21,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:33:25,480 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 01:33:25,488 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 01:33:25,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-21 01:33:25,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-11-21 01:33:26,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-21 01:33:26,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-11-21 01:34:19,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2021-11-21 01:34:19,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 1 [2021-11-21 01:34:19,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2021-11-21 01:34:19,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:34:19,999 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:34:20,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 34 treesize of output 22 [2021-11-21 01:34:43,573 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 27 treesize of output 1 [2021-11-21 01:34:43,582 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:34:43,592 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 27 treesize of output 1 [2021-11-21 01:34:43,610 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 21 treesize of output 17 [2021-11-21 01:34:43,621 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 19 treesize of output 15 [2021-11-21 01:34:43,635 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:34:43,641 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 27 treesize of output 1 [2021-11-21 01:34:43,681 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 29 treesize of output 1 [2021-11-21 01:34:43,687 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 27 treesize of output 1 [2021-11-21 01:34:43,694 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 27 treesize of output 1 [2021-11-21 01:34:43,704 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 29 treesize of output 1 [2021-11-21 01:34:43,714 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 27 treesize of output 1 [2021-11-21 01:34:43,725 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 29 treesize of output 1 [2021-11-21 01:34:43,738 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 19 treesize of output 15 [2021-11-21 01:34:43,758 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 21 treesize of output 17 [2021-11-21 01:34:43,776 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 20 treesize of output 16 [2021-11-21 01:34:43,802 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 22 treesize of output 18 [2021-11-21 01:34:44,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-11-21 01:34:44,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 9 treesize of output 5 [2021-11-21 01:34:44,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-11-21 01:35:12,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 9 treesize of output 5 [2021-11-21 01:35:13,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-11-21 01:35:13,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-11-21 01:36:10,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:10,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-11-21 01:36:11,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:11,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-21 01:36:11,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:11,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:36:14,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:14,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:36:19,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:19,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:36:20,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:20,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:36:37,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:37,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:37,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:37,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-21 01:36:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:37,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 20 treesize of output 9 [2021-11-21 01:36:40,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:40,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 17 [2021-11-21 01:36:40,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:36:40,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 17 [2021-11-21 01:39:18,272 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:39:18,477 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:39:18,546 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 57 for LOIs [2021-11-21 01:39:18,668 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 136 for LOIs [2021-11-21 01:40:31,706 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 122 for LOIs [2021-11-21 01:41:07,017 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 99 for LOIs [2021-11-21 01:41:07,802 INFO L197 IcfgInterpreter]: Interpreting procedure my_memset with input of size 190 for LOIs [2021-11-21 01:44:08,123 INFO L197 IcfgInterpreter]: Interpreting procedure memset_impl with input of size 188 for LOIs