./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memcpy_using_uint64_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_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/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_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/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_0014d89d-8d44-476b-810f-c683b012fc95/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 d67b4b463cf9b59771b705723a66a102d698cbc5859334aa26ed48a8838f7285 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:35:32,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:35:32,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:35:32,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:35:32,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:35:32,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:35:32,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:35:32,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:35:32,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:35:32,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:35:32,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:35:32,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:35:32,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:35:32,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:35:32,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:35:32,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:35:32,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:35:32,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:35:32,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:35:32,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:35:32,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:35:32,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:35:32,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:35:32,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:35:32,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:35:32,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:35:32,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:35:32,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:35:32,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:35:32,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:35:32,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:35:32,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:35:32,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:35:32,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:35:32,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:35:32,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:35:32,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:35:32,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:35:32,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:35:32,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:35:32,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:35:32,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:35:32,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:35:32,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:35:32,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:35:32,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:35:32,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:35:32,726 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:35:32,726 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:35:32,726 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:35:32,726 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:35:32,727 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:35:32,727 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:35:32,727 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:35:32,728 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:35:32,728 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:35:32,728 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:35:32,728 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:35:32,729 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:35:32,729 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:35:32,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:35:32,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:35:32,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:35:32,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:35:32,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:35:32,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:35:32,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:35:32,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:35:32,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:35:32,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:35:32,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:35:32,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:32,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:35:32,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:35:32,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:35:32,734 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:35:32,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:35:32,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:35:32,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:35:32,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:35:32,735 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_0014d89d-8d44-476b-810f-c683b012fc95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d67b4b463cf9b59771b705723a66a102d698cbc5859334aa26ed48a8838f7285 [2021-11-20 23:35:32,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:35:33,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:35:33,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:35:33,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:35:33,015 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:35:33,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i [2021-11-20 23:35:33,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/data/f7cc13e1a/d2b94fffef904cd9bea487be17b0b175/FLAGb25d0818e [2021-11-20 23:35:33,855 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:35:33,858 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i [2021-11-20 23:35:33,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/data/f7cc13e1a/d2b94fffef904cd9bea487be17b0b175/FLAGb25d0818e [2021-11-20 23:35:34,007 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/data/f7cc13e1a/d2b94fffef904cd9bea487be17b0b175 [2021-11-20 23:35:34,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:35:34,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:35:34,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:34,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:35:34,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:35:34,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:34" (1/1) ... [2021-11-20 23:35:34,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab7bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:34, skipping insertion in model container [2021-11-20 23:35:34,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:34" (1/1) ... [2021-11-20 23:35:34,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:35:34,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:35:34,427 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_0014d89d-8d44-476b-810f-c683b012fc95/sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i[4531,4544] [2021-11-20 23:35:34,433 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_0014d89d-8d44-476b-810f-c683b012fc95/sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i[4591,4604] [2021-11-20 23:35:35,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,192 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,193 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,194 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,211 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,212 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,214 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,215 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,218 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,221 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,223 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,226 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,451 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 23:35:35,452 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 23:35:35,454 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 23:35:35,455 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 23:35:35,457 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 23:35:35,458 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 23:35:35,459 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 23:35:35,460 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 23:35:35,461 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 23:35:35,461 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 23:35:35,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:35,559 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:35:35,573 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_0014d89d-8d44-476b-810f-c683b012fc95/sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i[4531,4544] [2021-11-20 23:35:35,574 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_0014d89d-8d44-476b-810f-c683b012fc95/sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i[4591,4604] [2021-11-20 23:35:35,643 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,645 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,646 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,647 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,648 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,663 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,666 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,671 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,672 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,673 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,675 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,676 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,676 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:35:35,713 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 23:35:35,715 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 23:35:35,716 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 23:35:35,717 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 23:35:35,719 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 23:35:35,720 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 23:35:35,721 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 23:35:35,722 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 23:35:35,723 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 23:35:35,724 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 23:35:35,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:36,000 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:35:36,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36 WrapperNode [2021-11-20 23:35:36,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:36,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:36,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:35:36,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:35:36,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,155 INFO L137 Inliner]: procedures = 593, calls = 627, calls flagged for inlining = 39, calls inlined = 6, statements flattened = 137 [2021-11-20 23:35:36,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:36,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:35:36,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:35:36,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:35:36,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:35:36,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:35:36,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:35:36,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:35:36,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:36,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:36,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:35:36,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:35:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:35:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:35:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:35:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:35:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:35:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:35:36,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:35:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 23:35:36,341 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 23:35:36,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:35:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-20 23:35:36,342 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-20 23:35:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:35:36,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:35:36,539 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:35:36,541 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:35:36,915 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:35:37,102 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:35:37,103 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 23:35:37,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:37 BoogieIcfgContainer [2021-11-20 23:35:37,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:35:37,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:35:37,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:35:37,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:35:37,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:35:34" (1/3) ... [2021-11-20 23:35:37,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:37, skipping insertion in model container [2021-11-20 23:35:37,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36" (2/3) ... [2021-11-20 23:35:37,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:37, skipping insertion in model container [2021-11-20 23:35:37,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:37" (3/3) ... [2021-11-20 23:35:37,118 INFO L111 eAbstractionObserver]: Analyzing ICFG memcpy_using_uint64_harness.i [2021-11-20 23:35:37,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:35:37,129 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:35:37,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:35:37,184 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 [2021-11-20 23:35:37,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:35:37,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 23:35:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 23:35:37,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:37,207 INFO L514 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:37,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:37,214 INFO L85 PathProgramCache]: Analyzing trace with hash 258458225, now seen corresponding path program 1 times [2021-11-20 23:35:37,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:37,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314231972] [2021-11-20 23:35:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:37,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-20 23:35:37,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:37,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314231972] [2021-11-20 23:35:37,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314231972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:37,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:37,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:35:37,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109094075] [2021-11-20 23:35:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:37,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:35:37,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:35:37,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:35:37,654 INFO L87 Difference]: Start difference. First operand has 34 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 23:35:38,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:38,824 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2021-11-20 23:35:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:35:38,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 32 [2021-11-20 23:35:38,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:38,839 INFO L225 Difference]: With dead ends: 67 [2021-11-20 23:35:38,839 INFO L226 Difference]: Without dead ends: 32 [2021-11-20 23:35:38,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:35:38,848 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:38,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:35:38,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-20 23:35:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-20 23:35:38,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-20 23:35:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2021-11-20 23:35:38,910 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 32 [2021-11-20 23:35:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:38,910 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-11-20 23:35:38,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 23:35:38,913 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2021-11-20 23:35:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 23:35:38,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:38,916 INFO L514 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:38,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:35:38,917 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:38,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1268232254, now seen corresponding path program 1 times [2021-11-20 23:35:38,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:38,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980283790] [2021-11-20 23:35:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:38,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-20 23:35:39,033 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:39,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980283790] [2021-11-20 23:35:39,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980283790] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:35:39,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943257756] [2021-11-20 23:35:39,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:39,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:39,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:39,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:35:39,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:35:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:39,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:35:39,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-20 23:35:39,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:35:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-20 23:35:39,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943257756] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:35:39,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1189072251] [2021-11-20 23:35:39,594 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-20 23:35:39,594 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:35:39,599 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:35:39,605 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:35:39,606 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:35:39,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:39,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:39,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:39,943 INFO L354 Elim1Store]: treesize reduction 161, result has 25.8 percent of original size [2021-11-20 23:35:39,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 78 [2021-11-20 23:35:40,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:40,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:40,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:40,311 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-20 23:35:40,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 65 treesize of output 113 [2021-11-20 23:35:40,593 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 1 [2021-11-20 23:35:40,630 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 23 treesize of output 19 [2021-11-20 23:35:40,650 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 1 [2021-11-20 23:35:40,673 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 1 [2021-11-20 23:35:40,776 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 21 treesize of output 1 [2021-11-20 23:35:40,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:40,814 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 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-20 23:35:40,865 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 1 [2021-11-20 23:35:40,877 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 1 [2021-11-20 23:35:40,933 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 1 [2021-11-20 23:35:40,945 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 1 [2021-11-20 23:35:40,955 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 1 [2021-11-20 23:35:40,985 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 23 treesize of output 19 [2021-11-20 23:37:43,379 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 [2021-11-20 23:37:43,797 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:37:45,278 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 [2021-11-20 23:37:46,201 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 [2021-11-20 23:37:48,675 INFO L244 Elim1Store]: Index analysis took 1397 ms [2021-11-20 23:37:48,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:58,660 WARN L227 SmtUtils]: Spent 9.95s on a formula simplification. DAG size of input: 15 DAG size of output: 9 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:37:58,660 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-20 23:37:58,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:37:59,595 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:04,322 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 [2021-11-20 23:39:04,678 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 [2021-11-20 23:39:05,176 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 [2021-11-20 23:39:06,005 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 [2021-11-20 23:39:06,450 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 [2021-11-20 23:39:06,586 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 [2021-11-20 23:39:06,731 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 29 treesize of output 1 [2021-11-20 23:39:06,945 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 [2021-11-20 23:39:07,214 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 [2021-11-20 23:39:07,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-20 23:39:08,078 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 [2021-11-20 23:39:08,180 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 [2021-11-20 23:39:08,857 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 [2021-11-20 23:39:09,000 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 [2021-11-20 23:39:09,073 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 [2021-11-20 23:39:09,266 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 [2021-11-20 23:39:09,355 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 [2021-11-20 23:39:09,453 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 [2021-11-20 23:39:09,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:09,842 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-20 23:39:09,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:39:10,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:10,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:10,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:10,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:10,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:10,559 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 23:39:10,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2021-11-20 23:39:12,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:12,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:12,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:12,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:13,156 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-20 23:39:13,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 76 [2021-11-20 23:39:13,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,706 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-11-20 23:39:13,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:13,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:13,744 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:13,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:13,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:14,177 INFO L354 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2021-11-20 23:39:14,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 99 [2021-11-20 23:39:14,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:14,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 76 [2021-11-20 23:39:15,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:15,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:15,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:15,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-20 23:39:15,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:15,694 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 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:39:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:24,724 INFO L354 Elim1Store]: treesize reduction 208, result has 11.1 percent of original size [2021-11-20 23:39:24,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 84 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 31 case distinctions, treesize of input 288 treesize of output 223 [2021-11-20 23:39:25,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:25,075 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-20 23:39:25,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-20 23:39:25,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:25,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:25,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:25,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:25,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:25,166 INFO L354 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2021-11-20 23:39:25,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2021-11-20 23:39:32,529 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 15 for LOIs [2021-11-20 23:39:32,608 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2021-11-20 23:39:32,637 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:39:36,980 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:39:36,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 23:39:36,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2021-11-20 23:39:36,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764134760] [2021-11-20 23:39:36,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 23:39:36,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:39:36,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:36,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:39:36,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:39:36,983 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-11-20 23:39:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:37,820 INFO L93 Difference]: Finished difference Result 64 states and 86 transitions. [2021-11-20 23:39:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:39:37,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 33 [2021-11-20 23:39:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:37,822 INFO L225 Difference]: With dead ends: 64 [2021-11-20 23:39:37,822 INFO L226 Difference]: Without dead ends: 35 [2021-11-20 23:39:37,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:39:37,824 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:37,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:39:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-20 23:39:37,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-20 23:39:37,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-20 23:39:37,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-11-20 23:39:37,834 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 33 [2021-11-20 23:39:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:37,834 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-11-20 23:39:37,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-11-20 23:39:37,835 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2021-11-20 23:39:37,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 23:39:37,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:37,836 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:39:37,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 23:39:38,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:38,040 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:38,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:38,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1849094479, now seen corresponding path program 2 times [2021-11-20 23:39:38,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:38,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541733049] [2021-11-20 23:39:38,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:38,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-20 23:39:38,201 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:38,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541733049] [2021-11-20 23:39:38,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541733049] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:38,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922116962] [2021-11-20 23:39:38,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 23:39:38,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:38,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:38,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:38,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:39:38,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-20 23:39:38,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:39:38,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 23:39:38,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-20 23:39:38,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:39:38,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922116962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:39:38,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:39:38,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-11-20 23:39:38,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173206228] [2021-11-20 23:39:38,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:39:38,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:39:38,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:39:38,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:39:38,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:39:38,510 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 23:39:40,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:39:40,537 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2021-11-20 23:39:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:39:40,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 36 [2021-11-20 23:39:40,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:39:40,539 INFO L225 Difference]: With dead ends: 41 [2021-11-20 23:39:40,539 INFO L226 Difference]: Without dead ends: 37 [2021-11-20 23:39:40,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:39:40,541 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:39:40,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 109 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:39:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-20 23:39:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-20 23:39:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-20 23:39:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2021-11-20 23:39:40,554 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 36 [2021-11-20 23:39:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:39:40,555 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2021-11-20 23:39:40,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 23:39:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2021-11-20 23:39:40,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 23:39:40,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:39:40,558 INFO L514 BasicCegarLoop]: trace histogram [8, 4, 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] [2021-11-20 23:39:40,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 23:39:40,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:40,770 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:39:40,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:39:40,771 INFO L85 PathProgramCache]: Analyzing trace with hash -369150269, now seen corresponding path program 1 times [2021-11-20 23:39:40,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:39:40,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333763381] [2021-11-20 23:39:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:40,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:39:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 23:39:40,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:39:40,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333763381] [2021-11-20 23:39:40,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333763381] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:39:40,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090735348] [2021-11-20 23:39:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:39:40,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:39:40,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:40,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:39:40,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:39:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:39:41,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:39:41,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:39:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-20 23:39:41,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:39:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 23:39:41,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090735348] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:39:41,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1696672970] [2021-11-20 23:39:41,338 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-20 23:39:41,339 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:39:41,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:39:41,339 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:39:41,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:39:41,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:41,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:41,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:41,553 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-20 23:39:41,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 65 treesize of output 113 [2021-11-20 23:39:41,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:41,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:41,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:41,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 23 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 48 [2021-11-20 23:39:41,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 [2021-11-20 23:39:41,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 [2021-11-20 23:39:41,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 [2021-11-20 23:39:41,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:41,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-20 23:39:42,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:42,202 INFO L354 Elim1Store]: treesize reduction 86, result has 23.2 percent of original size [2021-11-20 23:39:42,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 344 treesize of output 341 [2021-11-20 23:39:42,923 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 1 [2021-11-20 23:39:42,952 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 1 [2021-11-20 23:39:43,013 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 1 [2021-11-20 23:39:43,093 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 1 [2021-11-20 23:39:43,102 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 1 [2021-11-20 23:39:43,128 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 23 treesize of output 19 [2021-11-20 23:39:43,162 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 1 [2021-11-20 23:40:52,021 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:40:57,494 INFO L244 Elim1Store]: Index analysis took 2320 ms [2021-11-20 23:40:57,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:41:21,171 WARN L227 SmtUtils]: Spent 23.63s on a formula simplification. DAG size of input: 15 DAG size of output: 9 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:41:21,172 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-20 23:41:21,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:41:29,218 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:41:29,510 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 [2021-11-20 23:41:29,583 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:41:37,591 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 [2021-11-20 23:41:45,527 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:41:45,748 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 [2021-11-20 23:42:40,155 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 [2021-11-20 23:42:43,674 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:43,841 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 [2021-11-20 23:42:45,001 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:46,825 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 [2021-11-20 23:43:28,598 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 [2021-11-20 23:43:28,925 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 [2021-11-20 23:43:28,994 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:43:29,382 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 [2021-11-20 23:43:29,542 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 [2021-11-20 23:43:29,789 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 [2021-11-20 23:43:30,083 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 [2021-11-20 23:43:30,738 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 29 treesize of output 1 [2021-11-20 23:43:30,870 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 [2021-11-20 23:43:30,984 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 [2021-11-20 23:43:31,781 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 [2021-11-20 23:43:31,948 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 [2021-11-20 23:43:32,058 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 [2021-11-20 23:43:32,240 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 [2021-11-20 23:43:32,306 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 [2021-11-20 23:43:32,375 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 [2021-11-20 23:43:32,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:32,821 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-20 23:43:32,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:43:33,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:33,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:33,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:33,399 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 23:43:33,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2021-11-20 23:43:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:35,627 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:35,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:35,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:35,789 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-20 23:43:35,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 76 [2021-11-20 23:43:36,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,361 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-11-20 23:43:36,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:36,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:36,399 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:36,402 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:36,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:36,839 INFO L354 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2021-11-20 23:43:36,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 99 [2021-11-20 23:43:37,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:37,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 76 [2021-11-20 23:43:38,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:38,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:38,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:38,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-20 23:43:38,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:38,440 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 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:43:47,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:47,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,184 INFO L354 Elim1Store]: treesize reduction 208, result has 11.1 percent of original size [2021-11-20 23:43:48,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 84 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 31 case distinctions, treesize of input 288 treesize of output 223 [2021-11-20 23:43:48,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:48,507 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-20 23:43:48,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-20 23:43:48,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:48,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:48,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:43:48,577 INFO L354 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2021-11-20 23:43:48,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2021-11-20 23:44:06,297 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2021-11-20 23:44:06,379 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2021-11-20 23:44:06,402 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 10 for LOIs [2021-11-20 23:44:06,413 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:44:12,695 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:44:12,695 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 23:44:12,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2021-11-20 23:44:12,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710090815] [2021-11-20 23:44:12,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 23:44:12,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:44:12,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:44:12,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:44:12,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1105, Unknown=0, NotChecked=0, Total=1332 [2021-11-20 23:44:12,699 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 23:44:14,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:44:14,562 INFO L93 Difference]: Finished difference Result 74 states and 97 transitions. [2021-11-20 23:44:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 23:44:14,563 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 50 [2021-11-20 23:44:14,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:44:14,565 INFO L225 Difference]: With dead ends: 74 [2021-11-20 23:44:14,565 INFO L226 Difference]: Without dead ends: 43 [2021-11-20 23:44:14,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=227, Invalid=1105, Unknown=0, NotChecked=0, Total=1332 [2021-11-20 23:44:14,568 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:44:14,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:44:14,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-20 23:44:14,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-20 23:44:14,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-20 23:44:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2021-11-20 23:44:14,579 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 50 [2021-11-20 23:44:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:44:14,580 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-11-20 23:44:14,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 23:44:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2021-11-20 23:44:14,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 23:44:14,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:44:14,583 INFO L514 BasicCegarLoop]: trace histogram [10, 8, 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] [2021-11-20 23:44:14,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:44:14,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:44:14,790 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:44:14,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:44:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash -116964061, now seen corresponding path program 2 times [2021-11-20 23:44:14,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:44:14,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201897400] [2021-11-20 23:44:14,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:44:14,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:44:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:44:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 23:44:15,135 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:44:15,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201897400] [2021-11-20 23:44:15,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201897400] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:44:15,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767627450] [2021-11-20 23:44:15,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 23:44:15,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:44:15,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:44:15,137 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:44:15,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0014d89d-8d44-476b-810f-c683b012fc95/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:44:17,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-20 23:44:17,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:44:17,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 23:44:17,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:44:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-20 23:44:17,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:44:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 23:44:18,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767627450] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:44:18,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1261359944] [2021-11-20 23:44:18,332 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-20 23:44:18,333 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:44:18,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:44:18,334 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:44:18,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:44:18,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,528 INFO L354 Elim1Store]: treesize reduction 161, result has 25.8 percent of original size [2021-11-20 23:44:18,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 78 [2021-11-20 23:44:18,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:18,818 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-20 23:44:18,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 65 treesize of output 113 [2021-11-20 23:44:18,939 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 1 [2021-11-20 23:44:18,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-20 23:44:18,994 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 1 [2021-11-20 23:44:19,004 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 1 [2021-11-20 23:44:19,031 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 21 treesize of output 1 [2021-11-20 23:44:19,052 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 1 [2021-11-20 23:44:19,079 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 1 [2021-11-20 23:44:19,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:19,088 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 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-20 23:44:19,146 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 1 [2021-11-20 23:44:19,159 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 1 [2021-11-20 23:44:19,194 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 23 treesize of output 19 [2021-11-20 23:44:19,206 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 1 [2021-11-20 23:48:31,076 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:48:31,427 INFO L244 Elim1Store]: Index analysis took 147 ms [2021-11-20 23:48:31,432 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:33,526 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-20 23:48:33,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:48:34,816 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 [2021-11-20 23:48:35,054 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 [2021-11-20 23:48:38,287 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:48:39,595 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 [2021-11-20 23:48:42,519 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 [2021-11-20 23:48:43,035 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:48:43,200 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 [2021-11-20 23:48:43,420 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:48:43,577 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 [2021-11-20 23:48:44,979 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 [2021-11-20 23:48:45,602 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 [2021-11-20 23:48:45,771 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 [2021-11-20 23:48:45,974 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 [2021-11-20 23:48:46,252 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 [2021-11-20 23:48:46,650 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 [2021-11-20 23:48:47,202 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 [2021-11-20 23:48:47,312 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 [2021-11-20 23:48:47,417 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 [2021-11-20 23:48:48,171 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 [2021-11-20 23:48:48,323 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 [2021-11-20 23:48:48,399 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 [2021-11-20 23:48:48,583 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 [2021-11-20 23:48:48,651 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 [2021-11-20 23:48:48,705 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 [2021-11-20 23:48:48,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:49,067 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-20 23:48:49,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:48:49,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:49,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:49,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:49,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:49,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:49,684 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 23:48:49,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2021-11-20 23:48:52,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:52,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:52,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:52,547 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-20 23:48:52,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 76 [2021-11-20 23:48:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:52,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,062 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-20 23:48:53,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:53,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:53,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:53,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:48:53,526 INFO L354 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2021-11-20 23:48:53,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 99 [2021-11-20 23:48:54,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 76 [2021-11-20 23:48:54,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:54,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-20 23:48:55,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:48:55,075 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 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-20 23:49:03,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:03,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,250 INFO L354 Elim1Store]: treesize reduction 208, result has 11.1 percent of original size [2021-11-20 23:49:04,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 84 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 31 case distinctions, treesize of input 288 treesize of output 223 [2021-11-20 23:49:04,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:49:04,499 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-20 23:49:04,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-20 23:49:04,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:49:04,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:49:04,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:49:04,565 INFO L354 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2021-11-20 23:49:04,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44