./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:53:27,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:53:27,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:53:27,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:53:27,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:53:27,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:53:27,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:53:27,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:53:27,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:53:27,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:53:27,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:53:27,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:53:27,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:53:27,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:53:27,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:53:27,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:53:27,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:53:27,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:53:27,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:53:27,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:53:27,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:53:27,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:53:27,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:53:27,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:53:27,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:53:27,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:53:27,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:53:27,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:53:27,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:53:27,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:53:27,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:53:27,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:53:27,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:53:27,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:53:27,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:53:27,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:53:27,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:53:27,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:53:27,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:53:27,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:53:27,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:53:27,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:53:27,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:53:27,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:53:27,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:53:27,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:53:27,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:53:27,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:53:27,886 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:53:27,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:53:27,887 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:53:27,887 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:53:27,887 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:53:27,887 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:53:27,888 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:53:27,888 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:53:27,888 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:53:27,889 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:53:27,889 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:53:27,889 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:53:27,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:53:27,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:53:27,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:53:27,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:53:27,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:53:27,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:53:27,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:53:27,892 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:53:27,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:53:27,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:53:27,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:53:27,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:53:27,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:53:27,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:53:27,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:53:27,895 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:53:27,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:53:27,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:53:27,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:53:27,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:53:27,896 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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2021-11-21 00:53:28,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:53:28,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:53:28,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:53:28,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:53:28,264 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:53:28,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-21 00:53:28,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/data/81ebecdb4/c87cfe272e534555bfb474e12a007531/FLAG59aa83c24 [2021-11-21 00:53:29,342 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:53:29,343 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-21 00:53:29,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/data/81ebecdb4/c87cfe272e534555bfb474e12a007531/FLAG59aa83c24 [2021-11-21 00:53:29,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/data/81ebecdb4/c87cfe272e534555bfb474e12a007531 [2021-11-21 00:53:29,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:53:29,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:53:29,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:53:29,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:53:29,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:53:29,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:53:29" (1/1) ... [2021-11-21 00:53:29,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b4f8b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:29, skipping insertion in model container [2021-11-21 00:53:29,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:53:29" (1/1) ... [2021-11-21 00:53:29,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:53:29,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:53:30,254 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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-21 00:53:30,262 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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-21 00:53:31,110 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:53:31,206 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,207 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,207 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,208 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,209 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,242 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,246 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,247 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,570 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:53:31,571 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:53:31,572 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:53:31,573 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:53:31,574 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:53:31,575 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:53:31,576 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:53:31,576 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:53:31,577 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:53:31,578 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:53:31,768 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,769 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:31,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:53:31,930 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:53:31,945 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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-21 00:53:31,945 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_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-21 00:53:31,982 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 00:53:32,028 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,035 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,035 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,036 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,036 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,046 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,047 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,048 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,048 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,081 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 00:53:32,082 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 00:53:32,083 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 00:53:32,084 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 00:53:32,085 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 00:53:32,086 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 00:53:32,086 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 00:53:32,087 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 00:53:32,087 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 00:53:32,088 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 00:53:32,116 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,116 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 00:53:32,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:53:32,435 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:53:32,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32 WrapperNode [2021-11-21 00:53:32,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:53:32,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:53:32,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:53:32,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:53:32,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,633 INFO L137 Inliner]: procedures = 689, calls = 1517, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 742 [2021-11-21 00:53:32,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:53:32,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:53:32,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:53:32,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:53:32,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:53:32,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:53:32,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:53:32,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:53:32,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (1/1) ... [2021-11-21 00:53:32,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:53:32,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:32,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:53:32,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:53:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-21 00:53:32,827 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-21 00:53:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:53:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-21 00:53:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-21 00:53:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 00:53:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 00:53:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-21 00:53:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-21 00:53:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:53:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-21 00:53:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-21 00:53:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:53:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:53:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:53:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:53:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:53:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:53:32,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:53:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 00:53:32,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 00:53:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2021-11-21 00:53:32,833 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2021-11-21 00:53:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-21 00:53:32,834 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-21 00:53:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-21 00:53:32,835 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-21 00:53:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-21 00:53:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-21 00:53:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 00:53:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 00:53:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:53:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:53:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:53:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 00:53:32,837 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 00:53:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-21 00:53:32,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-21 00:53:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:53:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-11-21 00:53:32,838 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-11-21 00:53:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-11-21 00:53:32,838 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-11-21 00:53:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:53:33,198 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:53:33,200 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:53:34,349 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:53:34,557 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:53:34,557 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-21 00:53:34,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:53:34 BoogieIcfgContainer [2021-11-21 00:53:34,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:53:34,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:53:34,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:53:34,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:53:34,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:53:29" (1/3) ... [2021-11-21 00:53:34,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fdee05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:53:34, skipping insertion in model container [2021-11-21 00:53:34,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:32" (2/3) ... [2021-11-21 00:53:34,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fdee05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:53:34, skipping insertion in model container [2021-11-21 00:53:34,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:53:34" (3/3) ... [2021-11-21 00:53:34,572 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2021-11-21 00:53:34,578 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:53:34,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:53:34,634 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:53:34,640 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 00:53:34,641 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:53:34,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 90 states have internal predecessors, (110), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-11-21 00:53:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-21 00:53:34,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:34,677 INFO L514 BasicCegarLoop]: trace histogram [10, 3, 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] [2021-11-21 00:53:34,678 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:53:34,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:34,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2089198329, now seen corresponding path program 1 times [2021-11-21 00:53:34,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:34,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525712608] [2021-11-21 00:53:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:34,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:35,076 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:35,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845438363] [2021-11-21 00:53:35,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:35,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:35,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:35,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:35,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:53:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:35,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 00:53:35,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-21 00:53:35,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:53:35,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:35,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525712608] [2021-11-21 00:53:35,869 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845438363] [2021-11-21 00:53:35,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845438363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:53:35,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:53:35,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:53:35,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159561142] [2021-11-21 00:53:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:53:35,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:53:35,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:53:35,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:53:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:53:35,919 INFO L87 Difference]: Start difference. First operand has 162 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 90 states have internal predecessors, (110), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 00:53:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:53:36,383 INFO L93 Difference]: Finished difference Result 305 states and 427 transitions. [2021-11-21 00:53:36,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:53:36,385 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 82 [2021-11-21 00:53:36,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:53:36,397 INFO L225 Difference]: With dead ends: 305 [2021-11-21 00:53:36,397 INFO L226 Difference]: Without dead ends: 158 [2021-11-21 00:53:36,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 81 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 00:53:36,406 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:53:36,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 00:53:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-21 00:53:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-11-21 00:53:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 85 states have (on average 1.2) internal successors, (102), 87 states have internal predecessors, (102), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-21 00:53:36,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 212 transitions. [2021-11-21 00:53:36,489 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 212 transitions. Word has length 82 [2021-11-21 00:53:36,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:53:36,492 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 212 transitions. [2021-11-21 00:53:36,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 00:53:36,493 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 212 transitions. [2021-11-21 00:53:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 00:53:36,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:36,509 INFO L514 BasicCegarLoop]: trace histogram [12, 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] [2021-11-21 00:53:36,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:53:36,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 00:53:36,736 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:53:36,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:36,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1775986282, now seen corresponding path program 1 times [2021-11-21 00:53:36,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:36,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859836480] [2021-11-21 00:53:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:36,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:36,831 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:36,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397060931] [2021-11-21 00:53:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:36,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:36,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:36,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:53:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:37,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:53:37,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-21 00:53:37,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:53:37,643 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:37,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859836480] [2021-11-21 00:53:37,644 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:37,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397060931] [2021-11-21 00:53:37,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397060931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:53:37,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:53:37,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 00:53:37,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578385391] [2021-11-21 00:53:37,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:53:37,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:53:37,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:53:37,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:53:37,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:53:37,655 INFO L87 Difference]: Start difference. First operand 158 states and 212 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-21 00:53:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:53:38,947 INFO L93 Difference]: Finished difference Result 300 states and 397 transitions. [2021-11-21 00:53:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:53:38,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 108 [2021-11-21 00:53:38,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:53:38,951 INFO L225 Difference]: With dead ends: 300 [2021-11-21 00:53:38,951 INFO L226 Difference]: Without dead ends: 158 [2021-11-21 00:53:38,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 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 00:53:38,954 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 8 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:53:38,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 908 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 00:53:38,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-21 00:53:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-11-21 00:53:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 85 states have (on average 1.188235294117647) internal successors, (101), 87 states have internal predecessors, (101), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-21 00:53:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 211 transitions. [2021-11-21 00:53:38,974 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 211 transitions. Word has length 108 [2021-11-21 00:53:38,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:53:38,975 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 211 transitions. [2021-11-21 00:53:38,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-21 00:53:38,976 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 211 transitions. [2021-11-21 00:53:38,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-21 00:53:38,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:38,979 INFO L514 BasicCegarLoop]: trace histogram [12, 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] [2021-11-21 00:53:39,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:53:39,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:39,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:53:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:39,192 INFO L85 PathProgramCache]: Analyzing trace with hash -245390746, now seen corresponding path program 1 times [2021-11-21 00:53:39,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:39,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150350355] [2021-11-21 00:53:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:39,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:39,259 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:39,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1677548437] [2021-11-21 00:53:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:39,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:39,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:39,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:39,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:53:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:39,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 2294 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:53:39,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-21 00:53:40,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:53:40,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:40,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150350355] [2021-11-21 00:53:40,017 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:40,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677548437] [2021-11-21 00:53:40,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677548437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:53:40,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:53:40,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:53:40,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255739283] [2021-11-21 00:53:40,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:53:40,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:53:40,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:53:40,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:53:40,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:53:40,021 INFO L87 Difference]: Start difference. First operand 158 states and 211 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 00:53:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:53:40,379 INFO L93 Difference]: Finished difference Result 297 states and 395 transitions. [2021-11-21 00:53:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:53:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 110 [2021-11-21 00:53:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:53:40,382 INFO L225 Difference]: With dead ends: 297 [2021-11-21 00:53:40,382 INFO L226 Difference]: Without dead ends: 159 [2021-11-21 00:53:40,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 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 00:53:40,384 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:53:40,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 374 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:53:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-21 00:53:40,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-11-21 00:53:40,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 86 states have (on average 1.186046511627907) internal successors, (102), 88 states have internal predecessors, (102), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-21 00:53:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2021-11-21 00:53:40,403 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 110 [2021-11-21 00:53:40,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:53:40,404 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2021-11-21 00:53:40,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 00:53:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2021-11-21 00:53:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-21 00:53:40,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:40,407 INFO L514 BasicCegarLoop]: trace histogram [12, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:53:40,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:53:40,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-21 00:53:40,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:53:40,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:40,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1756706302, now seen corresponding path program 1 times [2021-11-21 00:53:40,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:40,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857749747] [2021-11-21 00:53:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:40,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:40,670 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:40,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239012206] [2021-11-21 00:53:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:40,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:40,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:40,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:40,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc7c5a7-adc3-4e48-ac35-962481a83a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:53:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:41,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2308 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 00:53:41,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:41,566 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 88 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-21 00:53:41,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:53:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-21 00:53:42,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:42,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857749747] [2021-11-21 00:53:42,257 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:42,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239012206] [2021-11-21 00:53:42,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239012206] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:53:42,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1061574998] [2021-11-21 00:53:42,279 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2021-11-21 00:53:42,279 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:53:42,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:53:42,289 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:53:42,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:53:54,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:54,816 INFO L244 Elim1Store]: Index analysis took 391 ms [2021-11-21 00:54:12,037 WARN L227 SmtUtils]: Spent 17.13s 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 00:54:12,056 INFO L354 Elim1Store]: treesize reduction 1968, result has 47.2 percent of original size [2021-11-21 00:54:12,061 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 00:54:34,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,956 INFO L244 Elim1Store]: Index analysis took 808 ms [2021-11-21 00:55:04,855 WARN L227 SmtUtils]: Spent 29.83s 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 00:55:04,859 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-21 00:55:04,864 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 00:55:27,933 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 00:55:28,051 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 00:55:28,535 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 00:55:31,121 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 00:55:31,233 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 00:55:34,652 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 00:55:34,656 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 00:55:34,810 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 00:55:34,827 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 00:55:34,838 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 00:55:34,871 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 00:55:35,190 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 00:55:35,377 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 00:55:36,052 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 00:55:36,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 00:55:39,695 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 00:55:39,703 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 00:55:39,949 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 00:55:39,965 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 00:55:40,886 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 00:55:40,904 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 00:56:27,747 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 00:56:27,768 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 00:56:28,149 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 00:56:28,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:56:28,336 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 00:56:28,336 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 00:56:56,031 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 00:56:56,040 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:56:56,077 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 00:56:56,095 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 00:56:56,106 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 00:56:56,126 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:56:56,135 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 00:56:56,179 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 00:56:56,186 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 00:56:56,194 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 00:56:56,205 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 00:56:56,216 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 00:56:56,227 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 00:56:56,239 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 00:56:56,258 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 00:56:56,275 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 00:56:56,296 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 00:56:56,520 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 00:56:56,758 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 00:56:56,820 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 00:57:25,820 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 00:57:25,922 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 00:57:26,413 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 00:58:33,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:33,564 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 00:58:34,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:34,262 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 00:58:35,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:35,121 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 00:58:36,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:36,629 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 00:58:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:37,737 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 00:58:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:38,824 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 00:59:15,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:59:15,228 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 00:59:15,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:59:15,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:59:15,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:59:15,354 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 00:59:15,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:59:15,640 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 00:59:15,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:59:15,772 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 01:00:36,258 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:00:36,450 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-21 01:00:36,530 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 57 for LOIs [2021-11-21 01:00:36,653 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 153 for LOIs [2021-11-21 01:00:44,396 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 122 for LOIs [2021-11-21 01:01:17,420 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 99 for LOIs [2021-11-21 01:01:20,311 INFO L197 IcfgInterpreter]: Interpreting procedure my_memset with input of size 190 for LOIs [2021-11-21 01:04:51,275 INFO L197 IcfgInterpreter]: Interpreting procedure memset_impl with input of size 183 for LOIs